Most of the time the CPU should not be touching the GX
domain on the GPU except for a very special use case when
the CPU needs to force the GX headswitch off. Add a
dummy enable function for the GX gdsc to simulate success
so that the pm_runtime reference counting is correct.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
In extreme cases an individual gdsc may wish to override the
power domain enable or disable callback functions for their own
purposes. Only set the generic gdsc callback if the function pointers
are not already set.
Acked-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add support for the graphics clock controller found on SDM845
based devices. This would allow graphics drivers to probe and
control their clocks.
Signed-off-by: Amit Nischal <anischal@codeaurora.org>
Signed-off-by: Taniya Das <tdas@codeaurora.org>
[sboyd@kernel.org: Collapse return in probe into less lines]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The GXL Documentation specifies 12 bits for the Fractional bit field,
bit the last bits have a different purpose that we cannot handle right
now, so update the bitwidth to have correct fractional calculations.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
[narmstrong: added comment on GXL HHI_HDMI_PLL_CNTL register shift]
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lkml.kernel.org/r/20181121111922.1277-1-narmstrong@baylibre.com
Add the newly added clock-id for PCLK_ACODECPHY to the gate-clock,
so that it gets usable from devicetree.
Signed-off-by: Katsuhiro Suzuki <katsuhiro@katsuster.net>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
The audio blocks require specific clock rates. Until now we were using
the closest clock rate possible with integer N-M factors. This resulted
in audio playback being slightly slower than it should be.
The vendor kernel gets around this (for some SoCs) by using sigma-delta
modulation to generate a fractional-N factor. As the PLL hardware is
identical in most chips, we can port the settings for H3 onto the A64.
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Tested-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
There are four CPU clock post dividers:
- ABP
- PERIPH (used for the ARM global timer and ARM TWD timer)
- AXI
- L2 DRAM
Each of these clocks consists of two clocks:
- a mux to select between "cpu_clk" divided by 2, 3, 4, 5, 6, 7 or 8
- a "_clk_dis" gate. The public S805 datasheet states that this should
be set to 1 to disable the clock, the default value is 0. There is
also a hint that these are "just in case" bits which only exist in
case the corresponding mux implementation does not allow glitch-free
parent changes (the muxes are designed in a way that the clock can
stay enabled when changing the mux). It's still good practise to
describe this clock even if we're not supposed to modify it. Thus
this uses the read-only gate ops.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lkml.kernel.org/r/20181122214017.25643-5-martin.blumenstingl@googlemail.com
The "cpu_div2" and "cpu_div3" take "cpu_in" as input and divide that by
2 or 3. The clock controller can also generate various CPU clock
post-dividers (2, 3, 4, 5, 6, 7, 8) which are derived from "cpu_clk".
When adding support for these post-dividers our clock naming could be
misleading as we have "cpu_div2" as well as "cpu_clk_div2".
Rename the existing "cpu_in" dividers so the name of the divider's
parent is part of the divider clock's name.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lkml.kernel.org/r/20181122214017.25643-4-martin.blumenstingl@googlemail.com
Some of the gate clocks are described as "just in case" bits in the
datasheet. Examples are the ABP, PERIPH, AXI and L2 DRAM clocks on
Meson8b.
The datasheet suggests that these bits are not touched. The full
explanation is:
"Set to 1 to manually disable the [...] clock when changing the mux
selection. Typically this bit is set to 0 since the clock muxes can
switch without glitches.".
This adds new read-only ops for gate clocks so we can describe these
clocks in our clock controller drivers while ensuring that we can't
accidentally modify the registers.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lkml.kernel.org/r/20181122214017.25643-3-martin.blumenstingl@googlemail.com
Currently all clocks in the CPU clock tree are marked as read-only
(using the corresponding _ro_ clk_ops). This was correct since changing
the clock tree could cause the system to lock up.
Switch all clocks to their corresponding clk_ops variant which is not
read-only to allow changing the CPU clock tree since the bug which
locked up the system is now fixed (by switching the CPU clock temporary
to run off XTAL while changing the CPU clock tree).
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lkml.kernel.org/r/20181115224048.13511-7-martin.blumenstingl@googlemail.com
Changing the CPU clock requires changing various clocks including the
SYS PLL. The existing meson clk-pll and clk-regmap drivers can change
all of the relevant clocks already.
However, changing for exampe the SYS PLL is problematic because as long
as the CPU is running off a clock derived from SYS PLL changing the
latter results in a full system lockup.
Fix this system lockup by switching the CPU clock to run off the XTAL
while we are changing the any of the clocks in the CPU clock tree.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lkml.kernel.org/r/20181115224048.13511-6-martin.blumenstingl@googlemail.com
The sys_pll on the EC-100 board is configured to 1584MHz at boot
(either by u-boot, firmware or chip defaults). This is achieved by using
M = 66, N = 1 (24MHz * 66 / 1).
At boot the CPU clock is running off sys_pll divided by 2 which results
in 792MHz. Thus M = 66 is considered to be a "safe" value for Meson8b.
To achieve 1608MHz (one of the CPU OPPs on Meson8 and Meson8m2) we need
M = 67, N = 1. I ran "stress --cpu 4" while infinitely cycling through
all available frequencies on my Meson8m2 board and could not spot any
issues with this setting (after ~12 hours of running this).
On Meson8, Meson8b and Meson8m2 we also want to be able to use 408MHz
and 816MHz CPU frequencies. These can be achieved by dividing sys_pll by
4 (for 408MHz) or 2 (for 816MHz). That means that sys_pll has to run at
1632MHz which can be generated using M = 68, N = 1.
Similarily we also want to be able to use 1008MHz as CPU frequency. This
means that sys_pll has to run either at 1008MHz or 2016MHz. The former
would result in an M value of 42, which is lower than the smallest value
used by the 3.10 GPL kernel sources from Amlogic (50 is the lower limit
there). Thus we need to run sys_pll at 2016MHz which can ge generated
using M = 84, N = 1.
I tested M = 68 and M = 84 on my Meson8b Odroid-C1 and my Meson8m2 board
by running "stress --cpu 4" while infinitely cycling thorugh all
available frequencies. I could not spot any issues after ~12 hours of
running this.
Amlogic's 3.10 GPL kernel sources have more M/N combinations. I did not
add them yet because M = 74 (to achieve close to 1800MHz on Meson8) and
M = 82 (to achieve close to 1992MHz on Meson8 as well) caused my
Meson8m2 board to hang randomly. It's not clear why this is (for example
because the board's voltage regulator design is bad, some missing bits
for these values in our clk-pll driver, etc.). Thus the following M
values from the Amlogic 3.10 GPL kernel sources are skipped as of now:
69, 70, 71, 72, 73, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lkml.kernel.org/r/20181115224048.13511-5-martin.blumenstingl@googlemail.com
We don't want the common clock framework to disable the "cpu_clk" if
it's not used by any device. The cpufreq-dt driver does not enable the
CPU clocks. However, even if it would we would still want the CPU clock
to be enabled at all times because the CPU clock is also required even
if we disable CPU frequency scaling on a specific board.
The reason why we want the CPU clock to be enabled is a clock further up
in the tree:
Since commit 6f888e7bc7bd58 ("clk: meson: clk-pll: add enable bit") the
sys_pll can be disabled. However, since the CPU clock is derived from
sys_pll we don't want sys_pll to get disabled. The common clock
framework takes care of that for us by enabling all parent clocks of our
CPU clock when we mark the CPU clock with CLK_IS_CRITICAL.
Until now this is not a problem yet because all clocks in the CPU
clock's tree (including sys_pll) are read-only. However, once we allow
modifications to the clocks in that tree we will need this.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lkml.kernel.org/r/20181115224048.13511-4-martin.blumenstingl@googlemail.com
The cpu_div3 clock (cpu_in divided by 3) generates a signal with a duty
cycle of 33%. The CPU clock however requires a clock signal with a duty
cycle of 50% to run stable.
cpu_div3 was observed to be problematic when cycling through all
available CPU frequencies (with additional patches on top of this one)
while running "stress --cpu 4" in the background. This caused sporadic
hangs where the whole system would fully lock up.
Amlogic's 3.10 kernel code also does not use the cpu_div3 clock either
when changing the CPU clock.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lkml.kernel.org/r/20181115224048.13511-3-martin.blumenstingl@googlemail.com
Since commit 6f888e7bc7bd58 ("clk: meson: clk-pll: add enable bit") our
PLLs also support the "enable" bit. Currently meson_clk_pll_enable
unconditionally resets the PLL, enables it, takes it out of reset and
waits until it is locked.
This works fine for our current clock trees. However, there will be a
problem once we allow modifications to sys_pll on Meson8, Meson8b and
Meson8m2 (which will be required for CPU frequency scaling):
the CPU clock is derived from the sys_pll clock. Once clk_enable is
called on the CPU clock this will be propagated by the common clock
framework up until the sys_pll clock. If we reset the PLL
unconditionally in meson_clk_pll_enable the CPU will be stopped (on
Meson8, Meson8b and Meson8m2).
To prevent this we simply check if the PLL is already enabled and do
reset the PLL if it's already enabled and locked.
Now that we have a utility function to check whether the PLL is enabled
we can also pass that to our clk_ops to let the common clock framework
know about the status of the hardware clock.
For now this is of limited use since the only common clock framework's
internal "disabled unused clocks" mechanism checks for this. Everything
else still uses the ref-counting (internal to the common clock
framework) when clk_enable is called.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lkml.kernel.org/r/20181115224048.13511-2-martin.blumenstingl@googlemail.com
According to the public S805 datasheet HHI_SYS_CPU_CLK_CNTL1[29:20] is
the register for the CPU scale_div clock. This matches the code in
Amlogic's 3.10 GPL kernel sources:
N = (aml_read_reg32(P_HHI_SYS_CPU_CLK_CNTL1) >> 20) & 0x3FF;
This means that the divider register is 10 bit wide instead of 9 bits.
So far this is not a problem since all u-boot versions I have seen are
not using the cpu_scale_div clock at all (instead they are configuring
the CPU clock to run off cpu_in_sel directly).
The fixes tag points to the latest rework of the CPU clocks. However,
even before the rework it was wrong. Commit 7a29a86943 ("clk: meson:
Add support for Meson clock controller") defines MESON_N_WIDTH as 9 (in
drivers/clk/meson/clk-cpu.c). But since the old clk-cpu implementation
this only carries the fixes tag for the CPU clock rewordk.
Fixes: 251b6fd38b ("clk: meson: rework meson8b cpu clock")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lkml.kernel.org/r/20180927085921.24627-3-martin.blumenstingl@googlemail.com
The public S805 datasheet only mentions that
HHI_SYS_CPU_CLK_CNTL1[20:29] contains a divider called "cpu_scale_div".
Unfortunately it does not mention how to use the register contents.
The Amlogic 3.10 GPL kernel sources are using the following code to
calculate the CPU clock based on that register (taken from
arch/arm/mach-meson8/clock.c in the 3.10 Amlogic kernel, shortened to
make it easier to read):
N = (aml_read_reg32(P_HHI_SYS_CPU_CLK_CNTL1) >> 20) & 0x3FF;
if (sel == 3) /* use cpu_scale_div */
div = 2 * N;
else
div = ... /* not relevant for this example */
cpu_clk = parent_clk / div;
This suggests that the formula is: parent_rate / 2 * register_value
However, running perf (which can measure the CPU clock rate thanks to
the ARM PMU) shows that this formula is not correct.
This can be reproduced with the following steps:
1. boot into u-boot
2. let the CPU clock run off the XTAL clock:
mw.l 0xC110419C 0x30 1
3. set the cpu_scale_div register:
to value 0x1: mw.l 0xC110415C 0x801016A2 1
to value 0x2: mw.l 0xC110415C 0x802016A2 1
to value 0x5: mw.l 0xC110415C 0x805016A2 1
4. let the CPU clock run off cpu_scale_div:
mw.l 0xC110419C 0xbd 1
5. boot Linux
6. run: perf stat -aB stress --cpu 4 --timeout 10
7. check the "cycles" value
I get the following results depending on the cpu_scale_div value:
- (cpu_in_sel - this is the input clock for cpu_scale_div - runs at
1.2GHz)
- 0x1 = 300MHz
- 0x2 = 200MHz
- 0x5 = 100MHz
This means that the actual formula to calculate the output of the
cpu_scale_div clock is: parent_rate / 2 * (register value + 1).
The register value 0x0 is reserved. When letting the CPU clock run off
the cpu_scale_div while the value is 0x0 the whole board hangs (even in
u-boot).
I also verified this with the TWD timer: when adding this to the .dts
without specifying it's clock it will auto-detect the PERIPH (which is
the input clock of the TWD) clock rate (and the result is shown in the
kernel log). On Meson8, Meson8b and Meson8m2 the PERIPH clock is CPUCLK
divided by 4. This also matched for all three test-cases from above (in
all cases the TWD timer clock rate was approx. one fourth of the CPU
clock rate).
A small note regarding the "fixes" tag: the original issue seems to
exist virtually since forever. Even commit 28b9fcd016 ("clk:
meson8b: Add support for Meson8b clocks") seems to handle this wrong. I
still decided to use commit 251b6fd38b ("clk: meson: rework meson8b
cpu clock") because this is the first commit which gets the CPU hiearchy
correct and thus it's the first commit where the cpu_scale_div register
is used correctly (apart from the bug in the cpu_scale_table).
Fixes: 251b6fd38b ("clk: meson: rework meson8b cpu clock")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lkml.kernel.org/r/20180927085921.24627-2-martin.blumenstingl@googlemail.com
The clock controller is located in a register range (called "HHI") which
contains more than just registers for the clock controller. Known
consumers of the HHI register range are:
- the clock controller
- a reset controller
- temperature sensor calibration coefficient (TSC) (only on Meson8b and
Meson8m2)
- HDMI controller
The main reason for using a syscon is the "temperature sensor
calibration coefficient" which has to be set for the built-in temperature
sensor to work correctly. Four TSC bits are located in the SAR ADC's
register space. However on Meson8b and Meson8m2 there is a fifth TSC bit
which is unfortunately located in the HHI register space. To be more
precise, bit 9 of the HHI_DPLL_TOP_0 register (which sits right between
the HHI_SYS_PLL and HHI_VID_PLL registers).
Get the regmap from the parent (HHI syscon) node to support all
functionality of the HHI register range. Backwards compatibility with
old .dtbs is ensured by falling back to parsing the registers just like
before this change.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lkml.kernel.org/r/20181028120859.5735-3-martin.blumenstingl@googlemail.com
Add the clocks entries used in the video clock path, the clock path
is doubled to permit having different synchronized clocks for different
parts of the video pipeline.
All dividers are flagged with CLK_GET_RATE_NOCACHE, and all gates are flagged
with CLK_IGNORE_UNUSED since they are currently directly handled by the
Meson DRM Driver.
Once the DRM Driver is fully migrated to using the Common Clock Framework
to handle the video clock tree, the CLK_GET_RATE_NOCACHE and CLK_IGNORE_UNUSED
will be dropped.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Jerome Brunet <jbrunet@baylibre.com>
Link: http://lkml.kernel.org/r/1541516257-16157-5-git-send-email-narmstrong@baylibre.com
In an attempt to better describe the HDMI PLL, a single DCO clock was
left for GXBB and GXL, but the GXL DCO does not have a pre-multiplier.
This patch adds back a GXL specific HDMI PLL DCO with xtal as parent.
Fixes: 87173557d2 ("clk: meson: clk-pll: remove od parameters")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Jerome Brunet <jbrunet@baylibre.com>
Link: http://lkml.kernel.org/r/1541516257-16157-3-git-send-email-narmstrong@baylibre.com
Add support the VID_PLL fully programmable divider used right after the
HDMI PLL clock source. It is used to achieve complex fractional division
with a programmble bitfield.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Jerome Brunet <jbrunet@baylibre.com>
Link: http://lkml.kernel.org/r/1541516257-16157-2-git-send-email-narmstrong@baylibre.com
Certain firmware configurations "protect" clks and cause the entire
system to reboot when a non-secure OS such as Linux tries to read or
write protected clk registers. But other firmware configurations allow
reading or writing the same registers, and they may actually require
that the OS use the otherwise locked down clks. Support the
'protected-clocks' property by never registering these protected clks
with the common clk framework. This way, when firmware is protecting
these clks we won't have the chance to ever read or write these
registers and take down the entire system.
Cc: Taniya Das <tdas@codeaurora.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This patch fixes definition of I2S1 clock gate register for rk3328.
Current setting is not related I2S clocks.
- bit6 of CRU_CLKGATE_CON0 means clk_ddrmon_en
- bit6 of CRU_CLKGATE_CON1 means clk_i2s1_en
Signed-off-by: Katsuhiro Suzuki <katsuhiro@katsuster.net>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
The "security processor", sometimes referred to as "wireless trusted
module" or "generic encrypt unit" is a low-power core present on MMP2,
that has nothing to do with security, wireless, trust or encryption.
On an OLPC machine it runs CForth and serves as a keyboard controller:
http://dev.laptop.org/git/users/wmb/cforth/tree/src/app/arm-xo-1.75/ps2.fth
The register address was obtained from the OLPC kernel, since the
datasheet seems to be the Marvell's most important business secret.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Similar to commit a9f0c0e563 ("clk: rockchip: fix rk3188 sclk_smc
gate data") there is one other gate clock in the rk3188 clock driver
with a similar wrong ordering, the sclk_mac_lbtest. So fix it as well.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Adopt the SPDX license identifier headers to ease license compliance
management.
Cc: Simon Arlott <simon@arlott.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Return proper error code in case query for fixed factor
parameter fails. This also fixes build warning for set
but not used variable 'ret'.
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Fixes: 3fde0e16d0 ("drivers: clk: Add ZynqMP clock driver")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
DSI DPHY gate bit on MIPI DSI clock register is bit 15
not bit 30.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Allwinner SoC like SUN8I and SUN50I has DE2 CCU so enable them
as default.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Device tree node name are not supposed to have "_" in them so fix the
node name use of xo_board to xo-board
Fixes: 652f1813c1 ("clk: qcom: gcc: Add global clock controller driver for QCS404")
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add more chip-specific compatible strings to support more Socs.
Signed-off-by: Yuantian Tang <andy.tang@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Similar to gxbb and gxl platforms, axg SCPI Cortex-M co-processor
uses the fdiv2 and fdiv3 to, among other things, provide the cpu
clock.
Until clock hand-off mechanism makes its way to CCF and the generic
SCPI claims platform specific clocks, these clocks must be marked as
critical to make sure they are never disabled when needed by the
co-processor.
Fixes: 05f814402d ("clk: meson: add fdiv clock gates")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The registered clks should unregister when something wrong happens
before going out in function clk_boston_setup().
Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Smatch report warnings:
drivers/clk/imgtec/clk-boston.c:76 clk_boston_setup() warn: possible memory leak of 'onecell'
drivers/clk/imgtec/clk-boston.c:83 clk_boston_setup() warn: possible memory leak of 'onecell'
drivers/clk/imgtec/clk-boston.c:90 clk_boston_setup() warn: possible memory leak of 'onecell'
'onecell' is malloced in clk_boston_setup(), but not be freed
before leaving from the error handling cases.
Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
On the Khadas VIM2 (GXM) and LePotato (GXL) board there are problems
with reboot; e.g. a ~60 second delay between issuing reboot and the
board power cycling (and in some OS configurations reboot will fail
and require manual power cycling).
Similar to 'commit c987ac6f1f ("clk:
meson-gxbb: set fclk_div2 as CLK_IS_CRITICAL")' the SCPI Cortex-M4
Co-Processor seems to depend on FCLK_DIV3 being operational.
Until commit 05f814402d ("clk:
meson: add fdiv clock gates"), this clock was modeled and left on by
the bootloader.
We don't have precise documentation about the SCPI Co-Processor and
its clock requirement so we are learning things the hard way.
Marking this clock as critical solves the problem but it should not
be viewed as final solution. Ideally, the SCPI driver should claim
these clocks. We also depends on some clock hand-off mechanism
making its way to CCF, to make sure the clock stays on between its
registration and the SCPI driver probe.
Fixes: 05f814402d ("clk: meson: add fdiv clock gates")
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Ensure that direct PLLM sourcing is turned off for EMC as we don't support
that configuration in the clk driver.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Kernel should never gate the EMC clock as it causes immediate lockup, so
removing clk-gate functionality doesn't affect anything. Turning EMC clk
gate into divider allows to implement glitch-less EMC scaling, avoiding
reparenting to a backup clock.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Add rpm smd clocks, PMIC and bus clocks which are required on QCS404
for clients to vote on.
Signed-off-by: Taniya Das <tdas@codeaurora.org>
Signed-off-by: Anu Ramanathan <anur@codeaurora.org>
[bjorn: Dropped cxo, voter clocks and static initialization]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The clk_ops structure is only stored in the ops fields of
clk_init_data structures. This field is const, so the clk_ops
structure can be const as well.
Identified and transformed using Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
These clk_ops structures are only passed to a call to
clk_register_composite where the corresponding parameters
are const, so the clk_ops structure can be const as well.
Identified and transformed using Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
These clk_ops structures are only stored in the ops field of a
clk_init_data structure. This field is const, so the clk_ops
structures can be const as well.
Identified and transformed using Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The clk_ops structure is only stored in the ops field of clk_init_data
structures. This field is const, so the clk_ops structure can be
const as well.
Identified and transformed using Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The clk_ops structure is only stored in the ops field of a
clk_init_data structure. This field is const, so the clk_ops
structure can be const as well.
Identified and transformed using Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
There are clock assignments in all i.MX7D dtb files for UART1,
below is the example in imx7d-sdb.dts, so setting UART1 clock
in clock driver is NOT necessary, actually, module clocks setting
should be done in module driver.
&uart1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart1>;
assigned-clocks = <&clks IMX7D_UART1_ROOT_SRC>;
assigned-clock-parents = <&clks IMX7D_PLL_SYS_MAIN_240M_CLK>;
status = "okay";
};
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The license text is specifying GPL v2 or later but the MODULE_LICENSE
is set to GPL v2 which means GNU Public License v2 only. So choose the
license text as the correct one.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
When the fixed factor clock is created by devicetree,
of_clk_add_provider is called. Add a call to
of_clk_del_provider in the remove function to balance
it out.
Reported-by: Alan Tull <atull@kernel.org>
Fixes: 971451b3b1 ("clk: fixed-factor: Convert into a module platform driver")
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
On R-Car V3M (R8A77970), the RPC/RPCD2 clocks are output by the common
divider. Describe them, as well as the RPC-IF module clock.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Support for mixer0, mixer1, writeback and rotation units is added.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Video PLL factors can be set in a way that final PLL rate is outside
stable range. H6 user manual specifically says that N factor should not
be below 12. While it doesn't says anything about maximum stable rate, it
is clear that PLL doesn't work at 6.096 GHz (254 * 24 MHz).
Set minimum allowed PLL video rate to 288 MHz (12 * 24 MHz) and maximum
to 2.4 GHz, which is maximum in BSP driver.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Allwinner H6 SoC has multiplier N range between 1 and 254. Since parent
rate is 24MHz, intermediate result when calculating final rate easily
overflows 32 bit variable.
Because of that, introduce function for calculating clock rate which
uses 64 bit variable for intermediate result.
Fixes: 6174a1e24b ("clk: sunxi-ng: Add N-M-factor clock support")
Fixes: ee28648cb2 ("clk: sunxi-ng: Remove the use of rational computations")
CC: <stable@vger.kernel.org>
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Currently MP clocks don't consider adjusting parent rate even if they
are allowed to do so. Such behaviour considerably lowers amount of
possible rates, which is very inconvenient when such clock is used for
pixel clock, for example.
In order to improve the situation, adjusting parent rate is considered
when allowed.
This code is inspired by clk_divider_bestdiv() function, which does
basically the same thing for different clock type.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
MUX bits for MMC clock register range are 25:24 where 24 is shift
and 2 is width So fix the width number from 3 to 2.
Fixes: 524353ea48 ("clk: sunxi-ng: add support for the Allwinner H6 CCU")
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
In the user manual of A64 SoC, the bit 22 and 23 of pll-mipi control
register is called "LDO{1,2}_EN", and according to the BSP source code
from Allwinner , the LDOs are enabled during the clock's enabling
process.
The clock failed to generate output if the two LDOs are not enabled.
Add the two bits to the clock's gate bits, so that the LDOs are enabled
when the PLL is enabled.
Fixes: c6a0637460 ("clk: sunxi-ng: Add A64 clocks")
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
because of summer time holidays/vacations. The biggest change in the diffstat
is in the Qualcomm clk driver, where they got support for CPUs and handful of
SoCs. After that, the at91 driver got a major rewrite for newer DT bindings
that should make things easier going forward and the TI code moved to a
clockdomain based design. The long tail is mostly small driver updates for
newer clks and some simpler SoC clock drivers such as the Hisilicon and imx
support.
In the core framework, we only have two small changes this time. One is a new
clk API to get all clks for a device with the bulk clk APIs. This allows
drivers that don't care about doing anything besides turning on all the clks to
just clk_get() them all and turn them on. The other change is the beginning of
a way to support save and restore of clk settings in the clk framework. TI is
the only user right now, but we will want to expand upon this design in the
future to support more save and restore of clk registers. At least this gets
us started and works well enough for one SoC, but there's more work in the
future.
Core:
- clk_bulk_get_all() API and friends to get all the clks for a device
- Basic clk state save/restore hooks
New Drivers:
- Renesas RZ/A2 (R7S9210) SoC, including early clocks
- Rensas RZ/G1N (R8A7744) and RZ/G2E (R8A774C0) SoCs
- Rensas RZ/G2M (r8a774a1) SoC
- Qualcomm Krait CPU clk support
- Qualcomm QCS404 GCC support
- Qualcomm SDM660 GCC support
- Qualcomm SDM845 camera clock controller
- Ingenic jz4725b CGU
- Hisilicon 3670 SoC support
- TI SCI clks on K3 SoCs
- iMX6 MMDC clks
- Reset Controller (RMU) support for Actions Semi Owl S900 and S700 SoCs
Updates:
- Rework at91 PMC clock driver for new DT bindings
- Nvidia Tegra clk driver MBIST workaround fix
- S2RAM support for Marvell mvebu periph clks
- Use updated printk format for OF node names
- Fix TI code to only search DT subnodes
- Various static analysis finds
- Tag various drivers with SPDX license tags
- Support dynamic frequency switching (DFS) on qcom SDM845 GCC
- Only use s2mps11 dt-binding defines instead of redefining them in the driver
- Add some more missing clks to qcom MSM8996 GCC
- Quad SPI clks on qcom SDM845
- Add support for CMT timer clocks on R-Car V3H
- Add support for SHDI and various timer clocks on R-Car V3M
- Improve OSC and RCLK (watchdog) handling on R-Car Gen3 SoCs
- Amlogic clk-pll driver improvements and updates
- Amlogic axg audio controller system clocks
- Register Amlogic meson8b clock controller early
- Add support for SATA and Fine Display Processor (FDP) clocks on R-Car M3-N
- Consolidation of system suspend related code in Exynos, S5P, S3C SoC clk drivers
- Fixes for system suspend support on Exynos542x (Odroid boards) and Exynos5433 SoC
- Remove obsoleted Exynos4212 ISP clock definitions
- Migrated TI am3/4/5 and dra7 SoCs to clockdomain based design
- TI RTC+DDR sleep mode support for clock save/restore
- Allwinner A64 display engine support and fixes
- Allwinner A83t display engine support and fixes
-----BEGIN PGP SIGNATURE-----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=V5aK
-----END PGP SIGNATURE-----
Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"This time it looks like a quieter release cycle in the clk tree. I
guess that's because of summer time holidays/vacations. The biggest
change in the diffstat is in the Qualcomm clk driver, where they got
support for CPUs and handful of SoCs. After that, the at91 driver got
a major rewrite for newer DT bindings that should make things easier
going forward and the TI code moved to a clockdomain based design.
The long tail is mostly small driver updates for newer clks and some
simpler SoC clock drivers such as the Hisilicon and imx support.
In the core framework, we only have two small changes this time.
One is a new clk API to get all clks for a device with the bulk clk
APIs. This allows drivers that don't care about doing anything besides
turning on all the clks to just clk_get() them all and turn them on.
The other change is the beginning of a way to support save and restore
of clk settings in the clk framework. TI is the only user right now,
but we will want to expand upon this design in the future to support
more save and restore of clk registers. At least this gets us started
and works well enough for one SoC, but there's more work in the
future.
Core:
- clk_bulk_get_all() API and friends to get all the clks for a device
- Basic clk state save/restore hooks
New Drivers:
- Renesas RZ/A2 (R7S9210) SoC, including early clocks
- Rensas RZ/G1N (R8A7744) and RZ/G2E (R8A774C0) SoCs
- Rensas RZ/G2M (r8a774a1) SoC
- Qualcomm Krait CPU clk support
- Qualcomm QCS404 GCC support
- Qualcomm SDM660 GCC support
- Qualcomm SDM845 camera clock controller
- Ingenic jz4725b CGU
- Hisilicon 3670 SoC support
- TI SCI clks on K3 SoCs
- iMX6 MMDC clks
- Reset Controller (RMU) support for Actions Semi Owl S900 and S700 SoCs
Updates:
- Rework at91 PMC clock driver for new DT bindings
- Nvidia Tegra clk driver MBIST workaround fix
- S2RAM support for Marvell mvebu periph clks
- Use updated printk format for OF node names
- Fix TI code to only search DT subnodes
- Various static analysis finds
- Tag various drivers with SPDX license tags
- Support dynamic frequency switching (DFS) on qcom SDM845 GCC
- Only use s2mps11 dt-binding defines instead of redefining them in the driver
- Add some more missing clks to qcom MSM8996 GCC
- Quad SPI clks on qcom SDM845
- Add support for CMT timer clocks on R-Car V3H
- Add support for SHDI and various timer clocks on R-Car V3M
- Improve OSC and RCLK (watchdog) handling on R-Car Gen3 SoCs
- Amlogic clk-pll driver improvements and updates
- Amlogic axg audio controller system clocks
- Register Amlogic meson8b clock controller early
- Add support for SATA and Fine Display Processor (FDP) clocks on R-Car M3-N
- Consolidation of system suspend related code in Exynos, S5P, S3C SoC clk drivers
- Fixes for system suspend support on Exynos542x (Odroid boards) and Exynos5433 SoC
- Remove obsoleted Exynos4212 ISP clock definitions
- Migrated TI am3/4/5 and dra7 SoCs to clockdomain based design
- TI RTC+DDR sleep mode support for clock save/restore
- Allwinner A64 display engine support and fixes
- Allwinner A83t display engine support and fixes"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (186 commits)
clk: qcom: Remove unused arrays in SDM845 GCC
clk: fixed-rate: fix of_node_get-put imbalance
clk: s2mps11: Add used attribute to s2mps11_dt_match
clk: qcom: gcc-sdm660: Add MODULE_LICENSE
clk: qcom: Add safe switch hook for krait mux clocks
dt-bindings: clock: Document qcom,krait-cc
clk: qcom: Add Krait clock controller driver
dt-bindings: arm: Document qcom,kpss-gcc
clk: qcom: Add KPSS ACC/GCC driver
clk: qcom: Add support for Krait clocks
clk: qcom: Add IPQ806X's HFPLLs
clk: qcom: Add MSM8960/APQ8064's HFPLLs
dt-bindings: clock: Document qcom,hfpll
clk: qcom: Add HFPLL driver
clk: qcom: Add support for High-Frequency PLLs (HFPLLs)
ARM: Add Krait L2 register accessor functions
clk: imx6q: add mmdc0 ipg clock
clk: imx6sl: add mmdc ipg clocks
clk: imx6sll: add mmdc1 ipg clock
clk: imx6sx: add mmdc1 ipg clock
...
When a memblock allocation APIs are called with align = 0, the alignment
is implicitly set to SMP_CACHE_BYTES.
Implicit alignment is done deep in the memblock allocator and it can
come as a surprise. Not that such an alignment would be wrong even
when used incorrectly but it is better to be explicit for the sake of
clarity and the prinicple of the least surprise.
Replace all such uses of memblock APIs with the 'align' parameter
explicitly set to SMP_CACHE_BYTES and stop implicit alignment assignment
in the memblock internal allocation functions.
For the case when memblock APIs are used via helper functions, e.g. like
iommu_arena_new_node() in Alpha, the helper functions were detected with
Coccinelle's help and then manually examined and updated where
appropriate.
The direct memblock APIs users were updated using the semantic patch below:
@@
expression size, min_addr, max_addr, nid;
@@
(
|
- memblock_alloc_try_nid_raw(size, 0, min_addr, max_addr, nid)
+ memblock_alloc_try_nid_raw(size, SMP_CACHE_BYTES, min_addr, max_addr,
nid)
|
- memblock_alloc_try_nid_nopanic(size, 0, min_addr, max_addr, nid)
+ memblock_alloc_try_nid_nopanic(size, SMP_CACHE_BYTES, min_addr, max_addr,
nid)
|
- memblock_alloc_try_nid(size, 0, min_addr, max_addr, nid)
+ memblock_alloc_try_nid(size, SMP_CACHE_BYTES, min_addr, max_addr, nid)
|
- memblock_alloc(size, 0)
+ memblock_alloc(size, SMP_CACHE_BYTES)
|
- memblock_alloc_raw(size, 0)
+ memblock_alloc_raw(size, SMP_CACHE_BYTES)
|
- memblock_alloc_from(size, 0, min_addr)
+ memblock_alloc_from(size, SMP_CACHE_BYTES, min_addr)
|
- memblock_alloc_nopanic(size, 0)
+ memblock_alloc_nopanic(size, SMP_CACHE_BYTES)
|
- memblock_alloc_low(size, 0)
+ memblock_alloc_low(size, SMP_CACHE_BYTES)
|
- memblock_alloc_low_nopanic(size, 0)
+ memblock_alloc_low_nopanic(size, SMP_CACHE_BYTES)
|
- memblock_alloc_from_nopanic(size, 0, min_addr)
+ memblock_alloc_from_nopanic(size, SMP_CACHE_BYTES, min_addr)
|
- memblock_alloc_node(size, 0, nid)
+ memblock_alloc_node(size, SMP_CACHE_BYTES, nid)
)
[mhocko@suse.com: changelog update]
[akpm@linux-foundation.org: coding-style fixes]
[rppt@linux.ibm.com: fix missed uses of implicit alignment]
Link: http://lkml.kernel.org/r/20181016133656.GA10925@rapoport-lnx
Link: http://lkml.kernel.org/r/1538687224-17535-1-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Suggested-by: Michal Hocko <mhocko@suse.com>
Acked-by: Paul Burton <paul.burton@mips.com> [MIPS]
Acked-by: Michael Ellerman <mpe@ellerman.id.au> [powerpc]
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Richard Weinberger <richard@nod.at>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Move remaining definitions and declarations from include/linux/bootmem.h
into include/linux/memblock.h and remove the redundant header.
The includes were replaced with the semantic patch below and then
semi-automated removal of duplicated '#include <linux/memblock.h>
@@
@@
- #include <linux/bootmem.h>
+ #include <linux/memblock.h>
[sfr@canb.auug.org.au: dma-direct: fix up for the removal of linux/bootmem.h]
Link: http://lkml.kernel.org/r/20181002185342.133d1680@canb.auug.org.au
[sfr@canb.auug.org.au: powerpc: fix up for removal of linux/bootmem.h]
Link: http://lkml.kernel.org/r/20181005161406.73ef8727@canb.auug.org.au
[sfr@canb.auug.org.au: x86/kaslr, ACPI/NUMA: fix for linux/bootmem.h removal]
Link: http://lkml.kernel.org/r/20181008190341.5e396491@canb.auug.org.au
Link: http://lkml.kernel.org/r/1536927045-23536-30-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Serge Semin <fancer.lancer@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The most noteworthy SoC driver changes this time include:
- The TEE subsystem gains an in-kernel interface to access the TEE
from device drivers.
- The reset controller subsystem gains a driver for the Qualcomm
Snapdragon 845 Power Domain Controller.
- The Xilinx Zynq platform now has a firmware interface for its
platform management unit. This contains a firmware "ioctl" interface
that was a little controversial at first, but the version we merged
solved that by not exposing arbitrary firmware calls to user space.
- The Amlogic Meson platform gains a "canvas" driver that is used
for video processing and shared between different high-level drivers.
The rest is more of the usual, mostly related to SoC specific power
management support and core drivers in drivers/soc:
- Several Renesas SoCs (RZ/G1N, RZ/G2M, R-Car V3M, RZ/A2M) gain new
features related to power and reset control.
- The Mediatek mt8183 and mt6765 SoC platforms gain support for
their respective power management chips.
- A new driver for NXP i.MX8, which need a firmware interface for
power management.
- The SCPI firmware interface now contains support estimating power
usage of performance states
- The NVIDIA Tegra "pmc" driver gains a few new features, in particular
a pinctrl interface for configuring the pads.
- Lots of small changes for Qualcomm, in particular the "smem"
device driver.
- Some cleanups for the TI OMAP series related to their sysc
controller.
Additional cleanups and bugfixes in SoC specific drivers include the
Meson, Keystone, NXP, AT91, Sunxi, Actions, and Tegra platforms.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQIcBAABAgAGBQJb1zEhAAoJEGCrR//JCVInnYQP/1pPXWsR/DV4COf4kGJFSAFn
EfHXJM1vKtb7AWl6SClpHFlUMt+fvL+dzDNJ9aeRr2GjcuWfzKDcrBM1ZvM70I31
C1Oc3b6OXEERCozDpRg/Vt8OpIvvWnVpaVffS9E5y6KqF8KZ0UbpWIxUJ87ik44D
UvNXYOU/LUGPxR1UFm5rm2zWF4i+rBvqnpVaXbeOsXsLElzxXVfv2ymhhqIpo2ws
o6e00DSjUImg8hLL4HCGFs2EX1KSD+oFzYaOHIE0/DEaiOnxVOpMSRhX2tZ+tRRb
DekbjL+wz5gOAKJTQfQ2sNNkOuK8WFqmE5G0RJ0iYPXuNsB/17UNb2bhTJeqGdcD
dqCQBLQuDUD2iHJ/d4RK5Kx3a8h2X63n5bdefgF5UX/2RBpXwFk1QtHr8X0DuY8c
o/dPGFNBOn3egzMyXrD5VEtnaTwK1Y6/h09qfuOOF1ZuYDmELKRkWMV9l8dIsvd8
ANjaw5B8MOUAf8DccBmPgUGu0XLCDyuFGqNVd9Kj5u3az+tyggIsgkEjWg1pxTv0
7dDDyv4Ara1V1HVDZ23l3CgmYCZQx2R/vdpX/DjuDPGEHGjZ5s2TW8P6oegdxtIh
LcTonNoTsRYzMrGD/aqhG/8fYsAScXePa3CLKl1Hrl+wFVV0XcaggH23GwD/k+7S
eDBrEzLkOTxM+WXvsvKY
=c/PQ
-----END PGP SIGNATURE-----
Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Arnd Bergmann:
"The most noteworthy SoC driver changes this time include:
- The TEE subsystem gains an in-kernel interface to access the TEE
from device drivers.
- The reset controller subsystem gains a driver for the Qualcomm
Snapdragon 845 Power Domain Controller.
- The Xilinx Zynq platform now has a firmware interface for its
platform management unit. This contains a firmware "ioctl"
interface that was a little controversial at first, but the version
we merged solved that by not exposing arbitrary firmware calls to
user space.
- The Amlogic Meson platform gains a "canvas" driver that is used for
video processing and shared between different high-level drivers.
The rest is more of the usual, mostly related to SoC specific power
management support and core drivers in drivers/soc:
- Several Renesas SoCs (RZ/G1N, RZ/G2M, R-Car V3M, RZ/A2M) gain new
features related to power and reset control.
- The Mediatek mt8183 and mt6765 SoC platforms gain support for their
respective power management chips.
- A new driver for NXP i.MX8, which need a firmware interface for
power management.
- The SCPI firmware interface now contains support estimating power
usage of performance states
- The NVIDIA Tegra "pmc" driver gains a few new features, in
particular a pinctrl interface for configuring the pads.
- Lots of small changes for Qualcomm, in particular the "smem" device
driver.
- Some cleanups for the TI OMAP series related to their sysc
controller.
Additional cleanups and bugfixes in SoC specific drivers include the
Meson, Keystone, NXP, AT91, Sunxi, Actions, and Tegra platforms"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (129 commits)
firmware: tegra: bpmp: Implement suspend/resume support
drivers: clk: Add ZynqMP clock driver
dt-bindings: clock: Add bindings for ZynqMP clock driver
firmware: xilinx: Add zynqmp IOCTL API for device control
Documentation: xilinx: Add documentation for eemi APIs
MAINTAINERS: imx: include drivers/firmware/imx path
firmware: imx: add misc svc support
firmware: imx: add SCU firmware driver support
reset: Fix potential use-after-free in __of_reset_control_get()
dt-bindings: arm: fsl: add scu binding doc
soc: fsl: qbman: add interrupt coalesce changing APIs
soc: fsl: bman_portals: defer probe after bman's probe
soc: fsl: qbman: Use last response to determine valid bit
soc: fsl: qbman: Add 64 bit DMA addressing requirement to QBMan
soc: fsl: qbman: replace CPU 0 with any online CPU in hotplug handlers
soc: fsl: qbman: Check if CPU is offline when initializing portals
reset: qcom: PDC Global (Power Domain Controller) reset controller
dt-bindings: reset: Add PDC Global binding for SDM845 SoCs
reset: Grammar s/more then once/more than once/
bus: ti-sysc: Just use SET_NOIRQ_SYSTEM_SLEEP_PM_OPS
...
- Sync dtc with upstream version v1.4.7-14-gc86da84d30e4
- Work to get rid of direct accesses to struct device_node name and
type pointers in preparation for removing them. New helpers for
parsing DT cpu nodes and conversions to use the helpers. printk
conversions to %pOFn for printing DT node names. Most went thru
subystem trees, so this is the remainder.
- Fixes to DT child node lookups to actually be restricted to child
nodes instead of treewide.
- Refactoring of dtb targets out of arch code. This makes the support
more uniform and enables building all dtbs on c6x, microblaze, and
powerpc.
- Various DT binding updates for Renesas r8a7744 SoC
- Vendor prefixes for Facebook, OLPC
- Restructuring of some ARM binding docs moving some peripheral bindings
out of board/SoC binding files
- New "secure-chosen" binding for secure world settings on ARM
- Dual licensing of 2 DT IRQ binding headers
-----BEGIN PGP SIGNATURE-----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=335v
-----END PGP SIGNATURE-----
Merge tag 'devicetree-for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull Devicetree updates from Rob Herring:
"A bit bigger than normal as I've been busy this cycle.
There's a few things with dependencies and a few things subsystem
maintainers didn't pick up, so I'm taking them thru my tree.
The fixes from Johan didn't get into linux-next, but they've been
waiting for some time now and they are what's left of what subsystem
maintainers didn't pick up.
Summary:
- Sync dtc with upstream version v1.4.7-14-gc86da84d30e4
- Work to get rid of direct accesses to struct device_node name and
type pointers in preparation for removing them. New helpers for
parsing DT cpu nodes and conversions to use the helpers. printk
conversions to %pOFn for printing DT node names. Most went thru
subystem trees, so this is the remainder.
- Fixes to DT child node lookups to actually be restricted to child
nodes instead of treewide.
- Refactoring of dtb targets out of arch code. This makes the support
more uniform and enables building all dtbs on c6x, microblaze, and
powerpc.
- Various DT binding updates for Renesas r8a7744 SoC
- Vendor prefixes for Facebook, OLPC
- Restructuring of some ARM binding docs moving some peripheral
bindings out of board/SoC binding files
- New "secure-chosen" binding for secure world settings on ARM
- Dual licensing of 2 DT IRQ binding headers"
* tag 'devicetree-for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (78 commits)
ARM: dt: relicense two DT binding IRQ headers
power: supply: twl4030-charger: fix OF sibling-node lookup
NFC: nfcmrvl_uart: fix OF child-node lookup
net: stmmac: dwmac-sun8i: fix OF child-node lookup
net: bcmgenet: fix OF child-node lookup
drm/msm: fix OF child-node lookup
drm/mediatek: fix OF sibling-node lookup
of: Add missing exports of node name compare functions
dt-bindings: Add OLPC vendor prefix
dt-bindings: misc: bk4: Add device tree binding for Liebherr's BK4 SPI bus
dt-bindings: thermal: samsung: Add SPDX license identifier
dt-bindings: clock: samsung: Add SPDX license identifiers
dt-bindings: timer: ostm: Add R7S9210 support
dt-bindings: phy: rcar-gen2: Add r8a7744 support
dt-bindings: can: rcar_can: Add r8a7744 support
dt-bindings: timer: renesas, cmt: Document r8a7744 CMT support
dt-bindings: watchdog: renesas-wdt: Document r8a7744 support
dt-bindings: thermal: rcar: Add device tree support for r8a7744
Documentation: dt: Add binding for /secure-chosen/stdout-path
dt-bindings: arm: zte: Move sysctrl bindings to their own doc
...
- Nvidia Tegra clk driver MBIST workaround fix
- clk_bulk_get_all() API and friends to get all the clks for a device
* clk-tegra:
clk: tegra210: Include size.h for compilation ease
clk: tegra: Fixes for MBIST work around
clk: tegra: probe deferral error reporting
* clk-bulk-get-all:
clk: add managed version of clk_bulk_get_all
clk: add new APIs to operate on all available clocks
clk: bulk: add of_clk_bulk_get()
- Hisilicon 3670 SoC support
* clk-samsung:
dt-bindings: clock: samsung: Add SPDX license identifiers
clk: samsung: Use clk_hw API for calling clk framework from clk notifiers
clk: samsung: exynos5420: Enable PERIS clocks for suspend
clk: samsung: exynos5420: Define CLK_SECKEY gate clock only or Exynos5420
clk: samsung: exynos5433: Keep sclk_uart clocks enabled in suspend
clk: samsung: Remove obsolete code for Exynos4412 ISP clocks
clk: samsung: exynos5433: Add suspend state for TOP, CPIF & PERIC CMUs
clk: samsung: Use NOIRQ stage for Exynos5433 clocks suspend/resume
clk: samsung: exynos5420: Use generic helper for handling suspend/resume
clk: samsung: exynos4: Use generic helper for handling suspend/resume
clk: samsung: Add support for setting registers state before suspend
clk: samsung: exynos5250: Use generic helper for handling suspend/resume
clk: samsung: s5pv210: Use generic helper for handling suspend/resume
clk: samsung: s3c64xx: Use generic helper for handling suspend/resume
clk: samsung: s3c2443: Use generic helper for handling suspend/resume
clk: samsung: s3c2412: Use generic helper for handling suspend/resume
clk: samsung: s3c2410: Use generic helper for handling suspend/resume
clk: samsung: Remove excessive include
* clk-hisi3670:
clk: hisilicon: Add clock driver for Hi3670 SoC
dt-bindings: clk: hisilicon: Add bindings for Hi3670 clk
* clk-at91-div-0:
clk: at91: Fix division by zero in PLL recalc_rate()
* clk-ti:
clk: ti: Prepare for remove of OF node name
clk: Clean up suspend/resume coding style
clk: ti: Add functions to save/restore clk context
clk: clk: Add clk_gate_restore_context function
clk: Add functions to save/restore clock context en-masse
clk: ti: dra7: add new clkctrl data
clk: ti: dra7xx: rename existing clkctrl data as compat data
clk: ti: am43xx: add new clkctrl data for am43xx
clk: ti: am43xx: rename existing clkctrl data as compat data
clk: ti: am33xx: add new clkctrl data for am33xx
clk: ti: am33xx: rename existing clkctrl data as compat data
clk: ti: clkctrl: replace dashes from clkdm name with underscore
clk: ti: clkctrl: support multiple clkctrl nodes under a cm node
dt-bindings: clock: dra7xx: add clkctrl indices for new data layout
dt-bindings: clock: am43xx: add clkctrl indices for new data layout
dt-bindings: clock: am33xx: add clkctrl indices for new data layout
- S2RAM support for Marvell mvebu periph clks
* clk-mvebu-periph-pm:
clk: mvebu: armada-37xx-periph: add suspend/resume support
clk: mvebu: armada-37xx-periph: save the IP base address in the driver data
* clk-meson:
clk: meson: meson8b: use the regmap in the internal reset controller
clk: meson: meson8b: register the clock controller early
clk: meson-axg: pcie: drop the mpll3 clock parent
clk: meson: axg: round audio system master clocks down
clk: meson: clk-pll: drop hard-coded rates from pll tables
clk: meson: clk-pll: remove od parameters
clk: meson: clk-pll: drop CLK_GET_RATE_NOCACHE where unnecessary
clk: meson: clk-pll: add enable bit
* clk-allwinner:
dt-bindings: clock: sun50i-a64-ccu: Add PLL_VIDEO0 macro
clk: sunxi-ng: a64: Add max. rate constraint to video PLLs
clk: sunxi-ng: a64: Add minimal rate for video PLLs
clk: sunxi-ng: sun50i: h6: Add 2x fixed post-divider to MMC module clocks
clk: sunxi-ng: a83t: Add max. rate constraint to video PLLs
clk: sunxi-ng: nkmp: Add constraint for maximum rate
clk: sunxi-ng: r40: Add max. rate constraint to video PLLs
clk: sunxi-ng: h3/h5: Add max. rate constraint to pll-video
clk: sunxi-ng: Add maximum rate constraint to NM PLLs
clk: sunxi-ng: h6: fix PWM gate/reset offset
clk: sunxi-ng: h6: fix bus clocks' divider position
* clk-mvebu-dup:
clk: mvebu: ap806: Remove superfluous of_clk_add_provider
* clk-davinci:
clk: davinci: kill davinci_clk_reset_assert/deassert()
- Use updated printk format for OF node names
- Fix TI code to only search DT subnodes
- Various static analysis finds
* clk-dt-name:
clk: Convert to using %pOFn instead of device_node.name
* clk-ti-of-node:
clk: ti: fix OF child-node lookup
* clk-sa:
clk: mvebu: armada-37xx-tbg: Switch to clk_get and balance it in probe
reset: hisilicon: fix potential NULL pointer dereference
clk: cdce925: release child device nodes
clk: qcom: clk-branch: Use true and false for boolean values
- Tag various drivers with SPDX license tags
- Support dynamic frequency switching (DFS) on qcom SDM845 GCC
- Only use s2mps11 dt-binding defines instead of redefining them in the driver
- Add some more missing clks to qcom MSM8996 GCC
- Quad SPI clks on qcom SDM845
* clk-spdx:
clk: mvebu: use SPDX-License-Identifier
clk: renesas: Convert to SPDX identifiers
clk: renesas: use SPDX identifier for Renesas drivers
clk: s2mps11,s3c64xx: Add SPDX license identifiers
clk: max77686: Add SPDX license identifiers
* clk-qcom-dfs:
clk: qcom: Allocate space for NULL terimation in DFS table
clk: qcom: gcc: Register QUPv3 RCGs for DFS on SDM845
clk: qcom: Add support for RCG to register for DFS
* clk-smp2s11-include:
clk: s2mps11: Use existing defines from bindings for clock IDs
* clk-qcom-8996-missing:
clk: qcom: Add some missing gcc clks for msm8996
* clk-qcom-qspi:
clk: qcom: Add qspi (Quad SPI) clocks for sdm845
clk: qcom: Add qspi (Quad SPI) clock defines for sdm845 to header
This change removes a parent map and parent name array that
appear to be completely unreferenced.
Signed-off-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
When the fixed rate clock is created by devicetree,
of_clk_add_provider is called. Add a call to
of_clk_del_provider in the remove function to balance
it out.
Signed-off-by: Alan Tull <atull@kernel.org>
Fixes: 435779fe13 ("clk: fixed-rate: Convert into a module platform driver")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Clang warns after commit 8985167ecf ("clk: s2mps11: Fix matching when
built as module and DT node contains compatible"):
drivers/clk/clk-s2mps11.c:242:34: warning: variable 's2mps11_dt_match'
is not needed and will not be emitted [-Wunneeded-internal-declaration]
static const struct of_device_id s2mps11_dt_match[] = {
^
1 warning generated.
This warning happens when a variable is used in some construct that
doesn't require a reference to that variable to be emitted in the symbol
table; in this case, it's MODULE_DEVICE_TABLE, which only needs to hold
the data of the variable, not the variable itself.
$ nm -S drivers/clk/clk-s2mps11.o | rg s2mps11_dt_match
00000078 000003d4 R __mod_of__s2mps11_dt_match_device_table
Normally, with device ID table variables, it means that the variable
just needs to be tied to the device declaration at the bottom of the
file, like s2mps11_clk_id:
$ nm -S drivers/clk/clk-s2mps11.o | rg s2mps11_clk_id
00000000 00000078 R __mod_platform__s2mps11_clk_id_device_table
00000000 00000078 r s2mps11_clk_id
However, because the comment above this deliberately doesn't want this
variable added to .of_match_table, we need to mark s2mps11_dt_match as
__used to silence this warning. This makes it clear to Clang that the
variable is used for something, even if a reference to it isn't being
emitted.
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Fixes: 8985167ecf ("clk: s2mps11: Fix matching when built as module and DT node contains compatible")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add a module license to match the license at the top of this file and
silence a build warning.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
When the Hfplls are reprogrammed during the rate change,
the primary muxes which are sourced from the same hfpll
for higher frequencies, needs to be switched to the 'safe
secondary mux' as the parent for that small window. This
is done by registering a clk notifier for the muxes and
switching to the safe parent in the PRE_RATE_CHANGE notifier
and back to the original parent in the POST_RATE_CHANGE notifier.
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Tested-by: Craig Tatlor <ctatlor97@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The Krait CPU clocks are made up of a primary mux and secondary
mux for each CPU and the L2, controlled via cp15 accessors. For
Kraits within KPSSv1 each secondary mux accepts a different aux
source, but on KPSSv2 each secondary mux accepts the same aux
source.
Cc: <devicetree@vger.kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Tested-by: Craig Tatlor <ctatlor97@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The ACC and GCC regions present in KPSSv1 contain registers to
control clocks and power to each Krait CPU and L2. For CPUfreq
purposes probe these devices and expose a mux clock that chooses
between PXO and PLL8.
Cc: <devicetree@vger.kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Tested-by: Craig Tatlor <ctatlor97@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The Krait clocks are made up of a series of muxes and a divider
that choose between a fixed rate clock and dedicated HFPLLs for
each CPU. Instead of using mmio accesses to remux parents, the
Krait implementation exposes the remux control via cp15
registers. Support these clocks.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Tested-by: Craig Tatlor <ctatlor97@gmail.com>
[sboyd@kernel.org: Move hidden config to top outside of the visible qcom
config zone so that menuconfig looks nice]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Describe the HFPLLs present on IPQ806X devices.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Tested-by: Craig Tatlor <ctatlor97@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Describe the HFPLLs present on MSM8960 and APQ8064 devices.
Acked-by: Rob Herring <robh@kernel.org> (bindings)
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Tested-by: Craig Tatlor <ctatlor97@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
On some devices (MSM8974 for example), the HFPLLs are
instantiated within the Krait processor subsystem as separate
register regions. Add a driver for these PLLs so that we can
provide HFPLL clocks for use by the system.
Cc: <devicetree@vger.kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Tested-by: Craig Tatlor <ctatlor97@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
HFPLLs are the main frequency source for Krait CPU clocks. Add
support for changing the rate of these PLLs.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Tested-by: Craig Tatlor <ctatlor97@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
i.MX6Q has MMDC0 ipg clock in CCM CCGR, add it into
clock tree for clock management.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
i.MX6SL has MMDC0 and MMDC1 ipg clock in CCM CCGR, add them into
clock tree for clock management.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
i.MX6SLL has MMDC1 ipg clock in CCM CCGR, add it into
clock tree for clock management.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
i.MX6SX has MMDC1 ipg clock in CCM CCGR, add it into
clock tree for clock management.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
i.MX6UL has MMDC1 ipg clock in CCM CCGR, add it into
clock tree for clock management.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Move all the DT backward compatibility code to its own file so it can be
deleted later.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add a driver for the PMC clocks of the at91sam9rl SoC.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
[sboyd@kernel.org: Make i signed to fix signedness bug]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add a driver for the PMC clocks of the at91sam9x5 SoCs
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
[sboyd@kernel.org: Make i signed to fix signedness bug]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add a driver for the PMC clocks of the at91sam9260, at91sam9261,
at91am9263 and at91sam9g20 SoCs.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
[sboyd@kernel.org: Make i signed to fix signedness bug]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add a driver for the PMC clocks of the sama5d2
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
[sboyd@kernel.org: Make i signed to fix signedness bug]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add a driver for the PMC clocks of the sama5d4
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
[sboyd@kernel.org: Make i signed to fix signedness bug]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add a new DT lookup function to lookup for PMC clocks.
Note that the #ifndef AT91_PMC_MOSCS section will be removed once all the
platforms are converted.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add a new strut to handle references to all the PMC clocks and implement
allocation/free helpers.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Remove static keyword to allow functions to be used from other units. Also
move some struct and function declarations to pmc.h
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
[sboyd@kernel.org: Include pmc.h]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Set gck->audio_pll_allowed in at91_clk_register_generated. This makes it
easier to do it from code that is not parsing device tree.
Also, this fixes an issue where the resulting clk_hw can be dereferenced
before being tested for error.
Fixes: 1a1a36d72e ("clk: at91: clk-generated: make gclk determine audio_pll rate")
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Separate registration out of of_sama5d2_clk_audio_pll*_setup to allow other
code to use it.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
[sboyd@kernel.org: Include pmc.h]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Separate registration out of of_sama5d4_clk_h32mx_setup to allow other code
to use it.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
As the SSCs don't have gclk, don't check for their ID to allow them to set
the audio pll rate.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The allocation for the audio pmc is using the size of struct clk_audio_pad
instead of struct clk_audio_pmc. This works fine because the former is
larger than the latter but it is safer to be correct.
Fixes: ("0865805d82d4 clk: at91: add audio pll clock drivers")
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
A typo that makes it impossible to get the correct clocks for
MMP2_CLK_SDH2 and MMP2_CLK_SDH3.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Fixes: 1ec770d92a ("clk: mmp: add mmp2 DT support for clock driver")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
i.MX7D uses virtual cpu clock of "arm" clock to be child clock
of "arm_a7_root_clk" and it is with CLK_IS_CRITICAL flag set, so
no need to add CLK_IS_CRITICAL flag for keeping "arm_a7_root_clk"
use count correct, latest clock tree is as below in clk_summary:
pll_arm_main 1 1 0 792000000 0
pll_arm_main_bypass 1 1 0 792000000 0
pll_arm_main_clk 1 1 0 792000000 0
arm_a7_src 1 1 0 792000000 0
arm_a7_cg 1 1 0 792000000 0
arm_a7_div 1 1 0 792000000 0
arm_a7_root_clk 1 1 0 792000000 0
arm 1 1 0 792000000
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add CLK_IS_CRITICAL flag for cpu clock type to
make cpu clock use count correct, as cpu clock
should be always critical.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Fixes the signedness bug returning '(-22)' on the return type by removing the
sanity checker in rockchip_ddrclk_get_parent(). The function should return
and unsigned value only and it's safe to remove the sanity checker as the
core functions that call get_parent like clk_core_get_parent_by_index already
ensures the validity of the clk index returned (index >= core->num_parents).
Fixes: a4f182bf81 ("clk: rockchip: add new clock-type for the ddrclk")
Cc: stable@vger.kernel.org
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
and generating noise.
-----BEGIN PGP SIGNATURE-----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=Vt/u
-----END PGP SIGNATURE-----
Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Stephen writes:
"clk fixes for v4.19-rc8
One fix for the Allwinner A10 SoC's audio PLL that wasn't properly
set and generating noise."
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: sunxi-ng: sun4i: Set VCO and PLL bias current to lowest setting
The parent clock is get only to have its name, and then the clock is no
more used, so we can safely free it using clk_put. Furthermore as between
the successful devm_clk_get() and the devm_clk_put() call we don't exit
the probe function in error so I can use non managed version of clk_get()
and clk_put().
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This patch introduces the managed version of clk_bulk_get_all.
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Tested-by: Thor Thayer <thor.thayer@linux.intel.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This patch introduces of_clk_bulk_get_all and clk_bulk_x_all APIs
to users who just want to handle all available clocks from device tree
without need to know the detailed clock information likes clock numbers
and names. This is useful in writing some generic drivers to handle clock
part.
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Thor Thayer <thor.thayer@linux.intel.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
'clock-names' property is optional in DT, so of_clk_bulk_get() is
introduced here to handle this for DT users without 'clock-names'
specified. Later clk_bulk_get_all() will be implemented on top of
it and this API will be kept private until someone proves they need
it because they don't have a struct device pointer.
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Russell King <linux@arm.linux.org.uk>
Reported-by: Shawn Guo <shawnguo@kernel.org>
Tested-by: Thor Thayer <thor.thayer@linux.intel.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
You can't compile this file by itself because it uses SZ_64K from
sizes.h but doesn't include it. Instead it relies on some certain
configuration pulling that in implicitly somewhere else. Just add the
include to make random compile testing easier.
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Fix some incorrect data in LVL2 offset and bit mask.
Fixes: e403d00573 ("clk: tegra: MBIST work around for Tegra210")
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Actually report the error code from devm_regulator_get() which may as
well just be a probe deferral.
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Clock framework will enable those clocks registered
with CLK_IS_CRITICAL flag, so no need to have
clks_init_on array during clock initialization now.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
On i.MX7D, IMX7D_NAND_USDHC_BUS_ROOT_CLK is NOT necessary
for system, and IMX7D_AHB_CHANNEL_ROOT_CLK is NOT existing
at all, remove them from clks_init_on array.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add support for the clocks provided by the CGU in the Ingenic JZ4725B
SoC.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Previously, the CGU code corresponding to the SoC for which we're
compiling the kernel was the only one enabled, which made it impossible
to build one kernel that supports them all.
Now, it is possible to select more than one SoC to support.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add the clocks supported in global clock controller which clock the
peripherals like BLSPs, SDCC, USB, MDSS etc. Register all the clocks
to the clock framework for the clients to be able to request for them.
Signed-off-by: Shefali Jain <shefjain@codeaurora.org>
Signed-off-by: Taniya Das <tdas@codeaurora.org>
Co-developed-by: Taniya Das <tdas@codeaurora.org>
Signed-off-by: Anu Ramanathan <anur@codeaurora.org>
[bamse, vkoul: rebase and tidyup for upstream]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
[sboyd@kernel.org: Lowercase hex]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This is used by the QCS404 GCC driver, export it to allow that driver to
be compiled as a module..
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add support for the global clock controller found on SDM660
based devices. This should allow most non-multimedia device
drivers to probe and control their clocks.
Based on CAF implementation.
Signed-off-by: Taniya Das <tdas@codeaurora.org>
[craig: rename parents to fit upstream, and other cleanups]
Signed-off-by: Craig Tatlor <ctatlor97@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
[sboyd@kernel.org: Rename gcc_660 to gcc_sdm660 and fix numbering of
defines to avoid duplicates]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Commit a982e45dc1 ("clk: at91: PLL recalc_rate() now using cached MUL
and DIV values") removed a check that prevents a division by zero. This
now causes a stacktrace when booting the kernel on a at91 platform if
the PLL DIV register contains zero. This commit reintroduces this check.
Fixes: a982e45dc1 ("clk: at91: PLL recalc_rate() now using cached...")
Cc: <stable@vger.kernel.org>
Signed-off-by: Ronald Wahl <rwahl@gmx.de>
Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
When driver is built as module and DT node contains clocks compatible
(e.g. "samsung,s2mps11-clk"), the module will not be autoloaded because
module aliases won't match.
The modalias from uevent: of:NclocksT<NULL>Csamsung,s2mps11-clk
The modalias from driver: platform:s2mps11-clk
The devices are instantiated by parent's MFD. However both Device Tree
bindings and parent define the compatible for clocks devices. In case
of module matching this DT compatible will be used.
The issue will not happen if this is a built-in (no need for module
matching) or when clocks DT node does not contain compatible (not
correct from bindings perspective but working for driver).
Note when backporting to stable kernels: adjust the list of device ID
entries.
Cc: <stable@vger.kernel.org>
Fixes: 53c31b3437 ("mfd: sec-core: Add of_compatible strings for clock MFD cells")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add Reset Management Unit (RMU) support for Actions Semi S900 SoC.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add Reset Management Unit (RMU) support for Actions Semi S700 SoC.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add Reset Management Unit (RMU) support for Actions Semi Owl SoCs.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
In order to support the reset controller, regmap info needs to
be cached in the private clock descriptor, owl_clk_desc. Hence,
save that and also make the clock descriptor struct non const.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Another patch is going to change this code to use %pOFn for DT node
names. Fix up the code to make this easy to pick this side of the merge
instead of fixing it up in a merge commit later.
Cc: Tero Kristo <t-kristo@ti.com>
Cc: Rob Herring <robh+dt@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The normal style is to use 'core' for struct clk_core pointers and to
directly access the core pointer from the clk_hw pointer when we're
within the common clk framework. Update the patches to make it a bit
easier to handle.
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This patchset adds CCF compliant clock driver for ZynqMP.
Clock driver queries supported clock information from firmware
and regiters pll and output clocks with CCF.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iEYEABECAAYFAlu8k7oACgkQykllyylKDCFmPACfewJHUsKUhaX77Ew+Pup5tFzC
GHgAn1Xb2fJF+9D4CSB+iwdQNPltuhBg
=QShK
-----END PGP SIGNATURE-----
Merge tag 'zynqmp-soc-clk-for-v4.20' of https://github.com/Xilinx/linux-xlnx into next/drivers
arm64: zynqmp: SoC CLK changes for v4.20
This patchset adds CCF compliant clock driver for ZynqMP.
Clock driver queries supported clock information from firmware
and regiters pll and output clocks with CCF.
* tag 'zynqmp-soc-clk-for-v4.20' of https://github.com/Xilinx/linux-xlnx:
drivers: clk: Add ZynqMP clock driver
dt-bindings: clock: Add bindings for ZynqMP clock driver
firmware: xilinx: Add zynqmp IOCTL API for device control
Documentation: xilinx: Add documentation for eemi APIs
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This patch adds CCF compliant clock driver for ZynqMP.
Clock driver queries supported clock information from
firmware and regiters pll and output clocks with CCF.
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Tejas Patel <tejasp@xilinx.com>
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Acked-by: Olof Johansson <olof@lixom.net>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
A randconfig build showed that two clk modules have no license tag:
WARNING: modpost: missing MODULE_LICENSE() in drivers/clk/keystone/gate.o
see include/linux/module.h for more information
WARNING: modpost: missing MODULE_LICENSE() in drivers/clk/keystone/pll.o
see include/linux/module.h for more information
Add the appropriate information from the comment at the start of the
two files.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Santosh Shilimkar <ssantosh@krenel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
clk_notifier_register() documentation states, that the provided notifier
callbacks associated with the notifier must not re-enter into the clk
framework by calling any top-level clk APIs. Fix this by replacing
clk_get_rate() calls with clk_hw_get_rate(), which is safe in this
context.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <snawrocki@kernel.org>
Ensure that clocks for core SoC modules (including TZPC0..9 modules)
are enabled for suspend/resume cycle. This fixes suspend/resume
support on Exynos5422-based Odroid XU3/XU4 boards.
Suggested-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <snawrocki@kernel.org>
The bit of GATE_BUS_PERIS1 for CLK_SECKEY is just reserved on
exynos5422/5800, not exynos5420. Define gate clk for exynos5420 to
handle the bit only on exynos5420.
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
[m.szyprow: rewrote commit subject]
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <snawrocki@kernel.org>
All sclk_uart clocks in TOP CMU have to be kept enabled for suspend/resume
cycle, otherwise TM2(e) boards hangs before entering the suspend mode.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <snawrocki@kernel.org>
Exynos4412 ISP clock are provided by separate Exynos4412 ISP clock
driver, so support for them in Exynos4-clk driver can be removed.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sylwester Nawrocki <snawrocki@kernel.org>
Before entering system suspend, one has to ensure that some clocks from
TOP, CPIF and PERIC CMUs are enabled. This is needed by the firmware
to properly perform system suspend operation. Instead of adding more and
more clocks with CRITICAL flag, simply enable those clocks directly in
respective CMU registers using 'suspend_regs' feature.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sylwester Nawrocki <snawrocki@kernel.org>
SoC clock drivers should suspend after every other drivers in the system,
which are using clocks and resume before them. The last stage for calling
suspend device callbacks is NOIRQ stage and there exists driver, which use
that state (dwmmc-exynos), so Exynos5433 clocks driver should also use it.
During the same stage, clocks driver will be always suspended after its
clients as a direct result of proper device probe order (deferred probe
reorders the suspend call sequence).
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sylwester Nawrocki <snawrocki@kernel.org>
Replace common suspend/resume handling code by generic helper.
Almost no functional change, the only difference is in handling
of hypothetical memory allocation failure on boot.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <snawrocki@kernel.org>
Replace common suspend/resume handling code by generic helper.
Handling of PLLs is a bit different in generic code, as they are handled
in the same way as other clock registers. Such approach was already used
on later Exynos SoCs and worked fine. Tests have shown that it works also
on Exynos4 SoCs and significantly simplifies the code.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <snawrocki@kernel.org>
Some registers of clock controller have to be set to certain values before
entering system suspend state. Till now drivers did that on their own,
but it will be easier to handle it by generic code and let drivers simply
to provide the list of registers and their state.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <snawrocki@kernel.org>
Replace common suspend/resume handling code by generic helper.
Almost no functional change, the only difference is in handling
of hypothetical memory allocation failure on boot.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sylwester Nawrocki <snawrocki@kernel.org>
Replace common suspend/resume handling code by generic helper.
Almost no functional change, the only difference is in handling
of hypothetical memory allocation failure on boot.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sylwester Nawrocki <snawrocki@kernel.org>
Replace common suspend/resume handling code by generic helper.
Almost no functional change, the only difference is in handling
of hypothetical memory allocation failure on boot.
[snawrocki@kernel.org: Whitespace correction]
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sylwester Nawrocki <snawrocki@kernel.org>
The clock gate restore context function enables or disables
the gate clocks based on the enable_count. This is done in cases
where the clock context is lost and based on the enable_count
the clock either needs to be enabled/disabled.
Signed-off-by: Keerthy <j-keerthy@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Deep enough power saving mode can result into losing context of the clock
registers also, and they need to be restored once coming back from the power
saving mode. Hence add functions to save/restore clock context.
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Russ Dill <Russ.Dill@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
The new clkctrl data layout for dra7xx is split based on clockdomain
boundaries. Previously the split was based on CM boundaries. This patch
adds the new data as separate data entity, retaining the compatibility
data also for now. The compatibility data can be removed once no longer
needed.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Rename the existing clkctrl data in preparation of upcoming clkdm
based split for it. Once the DT data has transitioned also, the
compat data can be removed.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
The new clkctrl data layout for am43xx is split based on clockdomain
boundaries. Previously the split was based on CM boundaries. This patch
adds the new data as separate data entity, retaining the compatibility
data also for now. The compatibility data can be removed once no longer
needed.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Rename the existing clkctrl data in preparation of upcoming clkdm
based split for it. Once the DT data has transitioned also, the
compat data can be removed.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
The new clkctrl data layout for am33xx is split based on clockdomain
boundaries. Previously the split was based on CM boundaries. This patch
adds the new data as separate data entity, retaining the compatibility
data also for now. The compatibility data can be removed once no longer
needed.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Rename the existing clkctrl data in preparation of upcoming clkdm
based split for it. Once the DT data has transitioned also, the
compat data can be removed.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
The change in the DTS data node naming prevents using underscore
within the node names and force usage of dash instead. On the other
hand, clockdomains use underscore instead of dash, so this must be
replaced within the driver code so that the mapping between the two
can be done properly.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Currently, only one clkctrl node can be added under a specific CM node
due to limitation with the implementation. Modify the code to pick-up
clockdomain name from the clkctrl node instead of CM node if provided.
Also, add a new flag to the TI clock driver so that both modes can
be supported simultaneously.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
K3_ARCH uses TISCI for clocks as well. Enable the same
for the driver support.
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This code is no longer used. Remove it.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: David Lechner <david@lechnology.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
One fix for the Audio PLL that were not properly set and generating noise
on the A10 SoCs.
-----BEGIN PGP SIGNATURE-----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=q4se
-----END PGP SIGNATURE-----
Merge tag 'sunxi-clk-fixes-for-4.19' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-fixes
Pull Allwinner clk fixes for 4.19 from Maxime Ripard:
One fix for the Audio PLL that were not properly set and generating noise
on the A10 SoCs.
* tag 'sunxi-clk-fixes-for-4.19' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
clk: sunxi-ng: sun4i: Set VCO and PLL bias current to lowest setting
While applying the commit a8309cedcd ("clk: apn806: Add eMMC clock to
system controller driver"), of_clk_add_provider was added wheres it was
already present in the probe function.
This extraneous call is harmless but not useful so remove it.
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This patch updates license to use SPDX-License-Identifier
instead of verbose license text.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
[rebased against clk-spdx]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Use the for_each_of_cpu_node iterator to iterate over cpu nodes. This
has the side effect of defaulting to iterating using "cpu" node names in
preference to the deprecated (for FDT) device_type == "cpu".
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: linux-clk@vger.kernel.org
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Same functionality, just easier to read.
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
The OSTM timer driver for RZ/A2 uses TIMER_OF_DECLARE which requires the
ostm module clocks to be registers early in boot.
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add support for SoCs that need to register core and module clocks early in
order to use OF drivers that exclusively use macros such as
TIMER_OF_DECLARE.
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
For now the reset controller was using raw register access because the
early init did not initialize the regmap. However, now that clocks are
initialized early we can simply use the regmap also for the reset
controller.
No functional changes.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Until now only the reset controller (part of the clock controller
register space) was registered early in the boot process, while the
clock controller itself was registered later on.
However, some parts of the SoC are initialized early in the boot process,
such as the SRAM and the TWD timer. The bootloader already enables these
clocks so we didn't see any issues so far.
Register the clock controller early so other drivers (such as the SRAM
and TWD timer) can use the clocks early in the boot process.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
We found the PCIe driver doesn't really work with
the mpll3 clock which is actually reserved for debug,
So drop it from the mux list.
Fixes: 33b89db68236 ("clk: meson-axg: add clocks required by pcie driver")
Tested-by: Jianxin Qin <jianxin.qin@amlogic.com>
Signed-off-by: Yixun Lan <yixun.lan@amlogic.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Some of the master clocks provided by the axg audio clock controller are
system clock (spdifin and pdm sysclk). They are used to clock an internal
DSP of the related devices. Having them constantly rounded down instead
of closest is preferable.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Putting hard-coded rates inside the parameter tables assumes that
the parent is known and will never change. That's a big assumption
we should not make.
We have everything we need to recalculate the output rate using
the parent rate and the rest of the parameters. Let's do so and
drop the rates from the tables.
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Remove od parameters from pll clocks and add post dividers clocks
instead. Some clock, especially the one which feature several ods,
may provide output between those ods. Also, some drivers, such
as the hdmi driver, may require a more detailed control of the
clock dividers, compared to what CCF would perform automatically.
One added benefit of removing ods is that it also greatly reduce the
size of the rate parameter tables.
In the future, we could possibly take the predivider 'n' out of this
driver as well. To do so, we will need to understand the constraints
for the PLL to lock and whether or not it depends on the input clock
rate.
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
CLK_GET_RATE_NOCACHE should only be necessary when the registers
controlling the rate of clock may change outside of CCF. On Amlogic,
it should only be the case for the hdmi pll which is directly controlled
by the display driver (WIP to fix this).
The other plls should not require this flag.
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Add the enable the bit of the pll clocks.
These pll clocks may be disabled but we can't model this as an external
gate since the pll needs to lock when enabled.
Adding this bit allows to drop the poke of the first register of PLL.
This will be useful to model the different components of the pll using
generic clocks elements
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
The TPU0 clock wasn't present in the original R8A77970 patch by Daisuke
Matsushita, it was added in a later BSP version...
Based on the original (and large) patch by Vladimir Barinov.
Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
PLL0 runs at 4.8 GHz, i.e. EXTAL x 100.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Commit d31fd43c0f ("clk: x86: Do not gate clocks enabled by the
firmware"), which added the code to mark clocks as CLK_IS_CRITICAL, causes
all unclaimed PMC clocks on Cherry Trail devices to be on all the time,
resulting on the device not being able to reach S0i3 when suspended.
The reason for this commit is that on some Bay Trail / Cherry Trail devices
the r8169 ethernet controller uses pmc_plt_clk_4. Now that the clk-pmc-atom
driver exports an "ether_clk" alias for pmc_plt_clk_4 and the r8169 driver
has been modified to get and enable this clock (if present) the marking of
the clocks as CLK_IS_CRITICAL is no longer necessary.
This commit removes the CLK_IS_CRITICAL marking, fixing Cherry Trail
devices not being able to reach S0i3 greatly decreasing their battery
drain when suspended.
Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=193891#c102
Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=196861
Cc: Johannes Stezenbach <js@sig21.net>
Cc: Carlo Caione <carlo@endlessm.com>
Reported-by: Johannes Stezenbach <js@sig21.net>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit d31fd43c0f ("clk: x86: Do not gate clocks enabled by the
firmware") causes all unclaimed PMC clocks on Cherry Trail devices to be on
all the time, resulting on the device not being able to reach S0i2 or S0i3
when suspended.
The reason for this commit is that on some Bay Trail / Cherry Trail devices
the ethernet controller uses pmc_plt_clk_4. This commit adds an "ether_clk"
alias, so that the relevant ethernet drivers can try to (optionally) use
this, without needing X86 specific code / hacks, thus fixing ethernet on
these devices without breaking S0i3 support.
This commit uses clkdev_hw_create() to create the alias, mirroring the code
for the already existing "mclk" alias for pmc_plt_clk_3.
Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=193891#c102
Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=196861
Cc: Johannes Stezenbach <js@sig21.net>
Cc: Carlo Caione <carlo@endlessm.com>
Reported-by: Johannes Stezenbach <js@sig21.net>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add support for the R7S9210 (RZ/A2) Clock Pulse Generator and Module
Standby.
The Module Standby HW in the RZ/A series is very close to R-Car HW, except
for how the registers are laid out.
The MSTP registers are only 8-bits wide, there are no status registers
(MSTPSR), and the register offsets are a little different. Since the RZ/A
hardware manuals refer to these registers as the Standby Control Registers,
we'll use that name to distinguish the RZ/A type from the R-Car type.
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Acked-by: Rob Herring <robh@kernel.org> # DT bits
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
The TMU clocks weren't present in the original R8A77970 patch by Daisuke
Matsushita, they were added in a later BSP version...
Based on the original (and large) patch by Vladimir Barinov.
Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add the R8A77970 CMT module clocks.
Based on the original (and large) patch by Vladimir Barinov.
Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Chris Paterson <chris.paterson2@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
The clock for UARTs 0 through 2 is UART012, the clock for UARTs 3 through
7 is UART34567.
For UART012, we stop the clock driver from changing the clock rate. This
is because the Synopsys UART driver simply sets the reference clock to 16x
the baud rate, but doesn't check if the actual rate is within the required
tolerance. The RZ/N1 clock divider can't provide this (we have to rely on
the UART's internal divider to set the correct clock rate), so you end up
with a clock rate that is way off what you wanted.
In addition, since the clock is shared between multiple UARTs, you don't
want the driver trying to change the clock rate as it may affect the other
UARTs (which may not have been configured yet, so you don't know what baud
rate they will use). Normally, the clock rate is set early on before Linux
to some very high rate that supports all of the clock rates you want.
This change stops the UART34567 clock rate from changing for the same
reasons.
Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Fixes: 4c3d88526e ("clk: renesas: Renesas R9A06G032 clock driver")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
The default mid-level PLL bias current setting interferes with sigma
delta modulation. This manifests as decreased audio quality at lower
sampling rates, which sounds like radio broadcast quality, and
distortion noises at sampling rates at 48 kHz or above.
Changing the bias current settings to the lowest gets rid of the
noise.
Fixes: de34485191 ("clk: sunxi-ng: sun4i: Use sigma-delta modulation
for audio PLL")
Cc: <stable@vger.kernel.org> # 4.15.x
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Replace common suspend/resume handling code by generic helper.
Almost no functional change, the only difference is in handling
of hypothetical memory allocation failure on boot.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sylwester Nawrocki <snawrocki@kernel.org>
Replace common suspend/resume handling code by generic helper.
Almost no functional change, the only difference is in handling
of hypothetical memory allocation failure on boot.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sylwester Nawrocki <snawrocki@kernel.org>
Replace common suspend/resume handling code by generic helper.
Almost no functional change, the only difference is in handling
of hypothetical memory allocation failure on boot.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sylwester Nawrocki <snawrocki@kernel.org>
Exynos Audio SubSystem and Exynos3250 clock drivers don't use any syscore
function, so don't include linux/syscore_ops.h in their code.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sylwester Nawrocki <snawrocki@kernel.org>
Allwinner A64 HDMI PHY clock has PLL_VIDEO0 as a parent.
Include the macro on dt-bindings so-that the same can be used
while defining CCU clock phandles.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Video PLLs on A64 can be set to higher rate that it is actually
supported by HW.
Limit maximum rate to 1008 MHz. This is the maximum allowed rate by BSP
clock driver. Interestengly, user manual specifies maximum frequency to
be 600 MHz. Historically, this data was wrong in some user manuals for
other SoCs, so more faith is put in BSP clock driver.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
According to documentation and experience with other similar SoCs, video
PLLs don't work stable if their output frequency is set below 192 MHz.
Because of that, set minimal rate to both A64 video PLLs to 192 MHz.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Reviewed-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
On the H6, the MMC module clocks are fixed in the new timing mode,
i.e. they do not have a bit to select the mode. These clocks have
a 2x divider somewhere between the clock and the MMC module.
To be consistent with other SoCs supporting the new timing mode,
we model the 2x divider as a fixed post-divider on the MMC module
clocks.
This patch adds the post-dividers to the MMC clocks, following the
approach on A64.
Fixes: 524353ea48 ("clk: sunxi-ng: add support for the Allwinner H6 CCU")
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
On R-Car V3M (AKA R8A77970), the SD0CKCR is laid out differently than on
the other R-Car gen3 SoCs. In fact, the layout is the same as on R-Car gen2
SoCs, so we'll need to copy the divisor tables from the R-Car gen2 driver.
We'll also need to support the SoC specific clock types, thus we're adding
CLK_TYPE_GEN3_SOC_BASE at the end of 'enum rcar_gen3_clk_types', declare
SD0H/SDH clocks in 'enum r8a77970_clk_types', and handle those clocks in
the overridden cpg_clk_register() method; then, finally, add the SD-IF
module clock (derived from the SD0 clock).
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Now that RCLK has been added by Geert, we can add the CMT module clocks.
Based on the original (and large) patch by Vladimir Barinov.
Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add suspend/resume hooks in Armada 37xx peripheral clocks driver to
handle S2RAM operations.
One can think that these hooks are useless by comparing the register
values before and after a suspend/resume cycle: they will look the same
anyway. This is because of some scripts executed by the Cortex-M3 core
during ATF operations to init both the clocks and the DDR. These values
could be modified by the BL33 stage or by Linux itself and should be
preserved.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Prepare the introduction of suspend/resume hooks by having an easy way
to access all the registers in one go just from a device: add the IP
base address in the driver data.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
There is a potential execution path in which function
platform_get_resource() returns NULL. If this happens,
we will end up having a NULL pointer dereference.
Fix this by replacing devm_ioremap with devm_ioremap_resource,
which has the NULL check and the memory region request.
This code was detected with the help of Coccinelle.
Cc: stable@vger.kernel.org
Fixes: 97b7129cd2 ("reset: hisilicon: change the definition of hisi_reset_init")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
When trying to use I2C7 on R-Car E3:
renesas-cpg-mssr e6150000.clock-controller: Cannot get module clock 1003: -2
i2c-rcar e6690000.i2c: failed to add to PM domain always-on: -2
i2c-rcar: probe of e6690000.i2c failed with error -2
Unlike other R-Car Gen3 SoCs, R-Car E3 has more than 7 I2C bus
interfaces. Add the forgotten module clock for the 8th instance to fix
this.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Add and correct PLL rates for better hdmi output.
This includes minimizing jitter on 213 MHz for better 71 MHz,
250.5 MHz for better 83.5 MHz, 428 MHz for better 25.175 Mhz,
low jitter 273 MHz for better 68.25 mhz, 356 MHz for better 118.68 Mhz
and 300MHz.
Increase the used Fvco for 308, 324 MHz, 292.5 MHz, 273.6 MHz,
238 MHz and 216 MHz.
And add some additional rates allowing to reach better hdmi-related
rates in general.
These match the rates used by ChromeOS, so have been quite widely tested.
Signed-off-by: Urja Rannikko <urjaman@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Array audio_parents is declared but never used, hence it is redundant
and can be removed.
Cleans up clang warning:
warning: 'audio_parents' defined but not used [-Wunused-const-variable=]
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add support for the camera clock controller found on SDM845
based devices. This would allow camera drivers to probe and
control their clocks.
Signed-off-by: Amit Nischal <anischal@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
of_get_child_by_name() returns device node with refcount incremented,
but there is no decrement in cdce925_probe(). The patch adds one.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Return statements in functions returning bool should use true or false
instead of an integer value.
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The table allocated in clk_rcg2_dfs_populate_freq_table() is
eventually iterated over by qcom_find_freq() which assumes that the
table is NULL terminated. Allocate one extra space in the array for
the NULL termination. Initting of the NULL termination is implicit
due to kcalloc().
Fixes: cc4f6944d0 ("clk: qcom: Add support for RCG to register for DFS")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
System clk provided in ST soc can be set to:
48Mhz, non-spread
25Mhz, spread
To get accurate rate, we need it to set it at non-spread
option which is 48Mhz.
Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Fixes: 421bf6a1f0 ("clk: x86: Add ST oscout platform clock")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Fix child-node lookup which by using the wrong OF helper was searching
the whole tree depth-first, something which could end up matching an
unrelated node.
Also fix the related node-reference leaks.
Fixes: 5b385a45e0 ("clk: ti: add support for clkctrl aliases")
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.
Cc: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: linux-clk@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-renesas-soc@vger.kernel.org
Cc: linux-omap@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add both the interface and core clock.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Taniya Das <tdas@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:
struct foo {
int stuff;
void *entry[];
};
instance = kzalloc(sizeof(struct foo) + sizeof(void *) * count,
GFP_KERNEL);
Instead of leaving these open-coded and prone to type mistakes, we can
now use the new struct_size() helper:
instance = kzalloc(struct_size(instance, entry, count), GFP_KERNEL);
Notice that, currently, there is a bug during the allocation:
sizeof(npcm7xx_clk_data) should be sizeof(*npcm7xx_clk_data)
Fix this bug by using struct_size() in kzalloc()
This issue was detected with the help of Coccinelle.
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Avi Fishman <avifishman70@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The clock IDs must match between DeviceTree bindings and the driver.
There is already a header file used by DeviceTree sources so include it
in the driver to remove duplicated symbols.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Replace GPL v2.0 and v2.0+ license statements with SPDX license
identifiers.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Replace GPL v2.0 and v2.0+ license statements with SPDX license
identifiers.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
QUPv3 clocks support DFS and thus register the RCGs which require support
for the same.
Signed-off-by: Taniya Das <tdas@codeaurora.org>
[sboyd@kernel.org: Use new macro, split out init structures so they
don't have to be copied]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Dynamic Frequency switch is a feature of clock controller by which request
from peripherals allows automatic switching frequency of input clock
without SW intervention. There are various performance levels associated
with a root clock. When the input performance state changes, the source
clocks and division ratios of the new performance state are loaded on to
RCG via HW and the RCG switches to new clock frequency when the RCG is in
DFS HW enabled mode.
Register the root clock generators(RCG) to switch to use the dfs clock ops
in the cases where DFS is enabled. The clk_round_rate() called by the clock
consumer would invoke the dfs determine clock ops and would read the DFS
performance level registers to identify all the frequencies supported and
update the frequency table. The DFS clock consumers would maintain these
frequency mapping and request the desired performance levels.
Signed-off-by: Taniya Das <tdas@codeaurora.org>
[sboyd@kernel.org: Rework registration logic to stop copying, change
recalc_rate() to index directly into the table if possible and fallback
to calculating on the fly with an assumed correct parent]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This patch adds SATA clock to the R8A77965 SoC.
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
[wsa: rebased to upstream base]
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
On R-Car V3H, RCLK can be switched between EXTALR and the On-Chip
Oscillator using mode pin MD19.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Make the existing support for selecting between clean and SSCG clocks
using MD12 more generic, to allow using other mode pins for arbitrary
clock selection.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
According to R-Car Gen3 Hardware Manual Rev.1.00, R-Car D3 has the
RCLK Frequency Control Register (RCKCR), which determines the OSC and
RINT predivider values, and selection of the RCLK clock source between
RINT and the On-Chip Oscillator.
Hence change the OSC and RINT clock definitions to use the RCKCR
divider, and add the missing On-Chip Oscillator and RCLK clock source
switching logic.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
According to R-Car Gen3 Hardware Manual Rev.1.00, R-Car E3 has the
RCLK Frequency Control Register (RCKCR), which determines the OSC and
RINT predivider values, and selection of the RCLK clock source between
RINT and the On-Chip Oscillator.
Hence change the OSC and RINT clock definitions to use the RCKCR
divider, and add the missing On-Chip Oscillator and RCLK clock source
switching logic.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Add a clock type and macro for defining clocks where the parent and
divider are selected based on the value of the RCKCR.CKSEL bit.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Add support for defining fixed rate clocks, to be used for on-chip
oscillators.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
R-Car Gen3 Hardware Manual Rev.0.54 documents the relation between the
MD13 and MD14 mode pins, and the OSC EXTAL predivider, as used by the
OSC clock. Hence augment the configuration structure with all
documented predivider values.
Add the OSC clock using the configured predivider.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
R-Car Gen3 Hardware Manual Rev.0.52 documents the relation between the
MD13 and MD14 mode pins, and the OSC EXTAL predivider, as used by the
OSC and RINT RCLK clocks. Hence augment the configuration structure
with all documented predivider values.
According to R-Car Gen3 Hardware Manual Rev.1.00, R-Car M3-N does not
have the CPG_RCKCR register. Change the OSC and RINT clock definitions
to use the OSC EXTAL predivider instead, which is supported on all R-Car
M3-N SoC revisions.
Inspired by a patch in the BSP by Takeshi Kihara
<takeshi.kihara.df@renesas.com>.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
R-Car Gen3 Hardware Manual Rev.0.52 documents the relation between the
MD13 and MD14 mode pins, and the OSC EXTAL predivider, as used by the
OSC and RINT RCLK clocks. Hence augment the configuration structure
with all documented predivider values.
According to R-Car Gen3 Hardware Manual Rev.0.53, the CPG_RCKCR
register was removed in R-Car M3-W ES1.1. Change the OSC and RINT
clock definitions to use the OSC EXTAL predivider instead, which is
supported on all R-Car M3-W SoC revisions.
Inspired by a patch in the BSP by Takeshi Kihara
<takeshi.kihara.df@renesas.com>.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
R-Car Gen3 Hardware Manual Rev.0.52 documents the relation between the
MD13 and MD14 mode pins, and the OSC EXTAL predivider, as used by the
OSC and RINT RCLK clocks. Hence augment the configuration structure
with all documented predivider values.
According to R-Car Gen3 Hardware Manual Rev.0.53, the CPG_RCKCR
register was removed in R-Car H3 ES2.0. Change the OSC and RINT
clock definitions to use the OSC EXTAL predivider instead, which is
supported on all R-Car H3 SoC revisions.
Inspired by a patch in the BSP by Takeshi Kihara
<takeshi.kihara.df@renesas.com>.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Add a clock type and macro for defining clocks using the OSC EXTAL
predivider combined with a fixed divider.
On most R-Car Gen3 SoCs, the predivider value depends on mode pins, and
thus must be specified in the configuration structure.
Inspired by a patch in the BSP by Takeshi Kihara
<takeshi.kihara.df@renesas.com>.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
All other internal clock names have a period prepended.
Hence rename the internal RCLK from "rint" to ".r", and move it to the
section where all other internal clocks are defined.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
It may happen that clock framework finds optimal video PLL rate above
that which is really supported by HW.
User manual doesn't really say what is upper limit for video PLLs on
A83T. Because of that, use the maximum rate defined in BSP clk driver
which is 3 GHz.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Some, if not most, NKMP PLLs can be set to higher rate that is really
supported by HW.
Implement support for maximum frequency constrain for NKMP PLLs.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Video PLLs on R40 can be set to higher rate that it is actually
supported by HW.
Limit maximum rate to 1008 MHz. This is the maximum allowed rate by BSP
clock driver. Interestengly, user manual specifies maximum frequency to
be 600 MHz. Historically, this data was wrong in some user manuals for
other SoCs, so more faith is put in BSP clock driver.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
As it turns out, pll-video can be set to higher rate that it is really
supported by HW.
For example, one monitor requested 185.58 MHz pixel clock. Clock
framework calculated that minimum rate error would be when pll-video
is set to 2040 MHz. This is clearly out of specs.
Both H3 and H5 user manuals specify 600 MHz as maximum supported rate.
However, BSP clock drivers allow up to 912 MHz and 1008 MHz
respectively. Here 912 MHz is chosen because user manuals were already
proven wrong once for lower limits.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
On some NM PLLs, frequency can be set above PLL working range.
Add a constraint for maximum supported rate. This way, drivers can
specify which is maximum allowed rate for PLL.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Currently the register offset of the PWM bus gate in Allwinner H6 clock
driver is wrong.
Fix this issue.
Fixes: 542353ea ("clk: sunxi-ng: add support for the Allwinner H6 CCU")
Signed-off-by: Rongyi Chen <chenyi@tt-cool.com>
[Icenowy: refactor commit message]
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
The bus clocks (AHB/APB) on Allwinner H6 have their second divider start
at bit 8, according to the user manual and the BSP code. However,
currently the divider offset is incorrectly set to 16, thus the divider
is not correctly read and the clock frequency is not correctly calculated.
Fix this bit offset on all affected bus clocks in ccu-sun50i-h6.
Cc: stable@vger.kernel.org # v4.17.y
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Some of the larger changes this merge window:
- Removal of drivers for Exynos5440, a Samsung SoC that never saw
widespread use.
- Uniphier support for USB3 and SPI reset handling
- Syste control and SRAM drivers and bindings for Allwinner platforms
- Qualcomm AOSS (Always-on subsystem) reset controller drivers
- Raspberry Pi hwmon driver for voltage
- Mediatek pwrap (pmic) support for MT6797 SoC
-----BEGIN PGP SIGNATURE-----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=ZjwY
-----END PGP SIGNATURE-----
Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Olof Johansson:
"Some of the larger changes this merge window:
- Removal of drivers for Exynos5440, a Samsung SoC that never saw
widespread use.
- Uniphier support for USB3 and SPI reset handling
- Syste control and SRAM drivers and bindings for Allwinner platforms
- Qualcomm AOSS (Always-on subsystem) reset controller drivers
- Raspberry Pi hwmon driver for voltage
- Mediatek pwrap (pmic) support for MT6797 SoC"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (52 commits)
drivers/firmware: psci_checker: stash and use topology_core_cpumask for hotplug tests
soc: fsl: cleanup Kconfig menu
soc: fsl: dpio: Convert DPIO documentation to .rst
staging: fsl-mc: Remove remaining files
staging: fsl-mc: Move DPIO from staging to drivers/soc/fsl
staging: fsl-dpaa2: eth: move generic FD defines to DPIO
soc: fsl: qe: gpio: Add qe_gpio_set_multiple
usb: host: exynos: Remove support for Exynos5440
clk: samsung: Remove support for Exynos5440
soc: sunxi: Add the A13, A23 and H3 system control compatibles
reset: uniphier: add reset control support for SPI
cpufreq: exynos: Remove support for Exynos5440
ata: ahci-platform: Remove support for Exynos5440
soc: imx6qp: Use GENPD_FLAG_ALWAYS_ON for PU errata
soc: mediatek: pwrap: add mt6351 driver for mt6797 SoCs
soc: mediatek: pwrap: add pwrap driver for mt6797 SoCs
soc: mediatek: pwrap: fix cipher init setting error
dt-bindings: pwrap: mediatek: add pwrap support for MT6797
reset: uniphier: add USB3 core reset control
dt-bindings: reset: uniphier: add USB3 core reset support
...
Most of the SoC updates in this cycle are cleanups and moves to more
modern infrastructure:
- Davinci was moved to common clock framework
- OMAP1-based Amstrad E3 "Superphone" saw a bunch of cleanups to the
keyboard interface (bitbanged AT keyboard via GPIO).
- Removal of some stale code for Renesas platforms
- Power management improvements for i.MX6LL
-----BEGIN PGP SIGNATURE-----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=ACVk
-----END PGP SIGNATURE-----
Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM 32-bit SoC platform updates from Olof Johansson:
"Most of the SoC updates in this cycle are cleanups and moves to more
modern infrastructure:
- Davinci was moved to common clock framework
- OMAP1-based Amstrad E3 "Superphone" saw a bunch of cleanups to the
keyboard interface (bitbanged AT keyboard via GPIO).
- Removal of some stale code for Renesas platforms
- Power management improvements for i.MX6LL"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (112 commits)
ARM: uniphier: select RESET_CONTROLLER
arm64: uniphier: select RESET_CONTROLLER
ARM: uniphier: remove empty Makefile
ARM: exynos: Clear global variable on init error path
ARM: exynos: Remove outdated maintainer information
ARM: shmobile: Always enable ARCH_TIMER on SoCs with A7 and/or A15
ARM: shmobile: r8a7779: hide unused r8a7779_platform_cpu_kill
soc: r9a06g032: don't build SMP files for non-SMP config
ARM: shmobile: Add the R9A06G032 SMP enabler driver
ARM: at91: pm: configure wakeup sources for ULP1 mode
ARM: at91: pm: add PMC fast startup registers defines
ARM: at91: pm: Add ULP1 mode support
ARM: at91: pm: Use ULP0 naming instead of slow clock
ARM: hisi: handle of_iomap and fix missing of_node_put
ARM: hisi: check of_iomap and fix missing of_node_put
ARM: hisi: fix error handling and missing of_node_put
ARM: mx5: Set the DBGEN bit in ARM_GPC register
ARM: imx51: Configure M4IF to avoid visual artifacts
ARM: imx: call imx6sx_cpuidle_init() conditionally for 6sll
ARM: imx: fix i.MX6SLL build
...
We've added duty cycle support to the clk API so that clk signal
duty cycle ratios can be adjusted while taking into account things
like clk dividers and clk tree hierarchy. So far only one SoC has
implemented support for this, but I expect there will be more to
come in the future.
Outside of the core, we have the usual pile of clk driver updates
and additions. The Amlogic meson driver got the most lines in the
diffstat this time around because it added support for a whole bunch
of hardware and duty cycle configuration. After that the Rockchip PX30,
Qualcomm SDM845, and Renesas SoC drivers fill in a majority of the diff.
We're left with the collection of non-critical fixes after that. Overall
it looks pretty quiet this time.
Core:
- Clk duty cycle support
- Proper CLK_SET_RATE_GATE support throughout the tree
New Drivers:
- Actions Semi Owl series S700 SoC clk driver
- Qualcomm SDM845 display clock controller
- i.MX6SX ocram_s clk support
- Uniphier NAND, USB3 PHY, and SPI clk support
- Qualcomm RPMh clk driver
- i.MX7D mailbox clk support
- Maxim 9485 Programmable Clock Generator
- Expose 32 kHz PLL on PXA SoCs
- imx6sll GPIO clk gate support
- Atmel at91 I2S audio clk support
- SI544/SI514 clk on/off support
- i.MX6UL GPIO clock gates in CCM CCGR
- Renesas Crypto Engine clocks on R-Car H3
- Renesas clk support for the new RZ/N1D SoC
- Allwinner A64 display engine clock support
- Support for Rockchip's PX30 SoC
- Amlogic Meson axg PCIe and audio clocks
- Amlogic Meson GEN CLK on gxbb, gxl and axg
Updates:
- Remove an unused variable from Exynos4412 ISP driver
- Fix a thinko bug in SCMI clk division logic
- Add missing of_node_put()s in some i.MX clk drivers
- Tegra SDMMC clk jitter improvements with high speed signaling modes
- SPDX tagging for qcom and cs2000-cp drivers
- Stop leaking con ids in __clk_put()
- Fix a corner case in fixed factor clk probing where node is in DT but
parent clk is registered much later
- Marvell Armada 3700 clk_pm_cpu_get_parent() had an invalid return value
- i.MX clk init arrays removed in place of CLK_IS_CRITICAL
- Convert to CLK_IS_CRITICAL for i.MX51/53 driver
- Fix Tegra BPMP driver oops when xlating a NULL clk
- Proper default configuration for vic03 and vde clks on Tegra124
- Mark Tegra memory controller clks as critical
- Fix array bounds clamp in Tegra's emc determine_rate() op
- Ingenic i2s bit update and allow UDC clk to gate
- Fix name of aspeed SDC clk define to have only one 'CLK'
- Fix i.MX6QDL video clk parent
- Critical clk markings for qcom SDM845
- Fix Stratix10 mpu_free_clk and sdmmc_free_clk parents
- Mark Rockchip's pclk_rkpwm_pmu as critical clock, due to it supplying
the pwm used to drive the logic supply of the rk3399 core.
-----BEGIN PGP SIGNATURE-----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=Mcn+
-----END PGP SIGNATURE-----
Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"The new and exciting feature this time around is in the clk core.
We've added duty cycle support to the clk API so that clk signal duty
cycle ratios can be adjusted while taking into account things like clk
dividers and clk tree hierarchy. So far only one SoC has implemented
support for this, but I expect there will be more to come in the
future.
Outside of the core, we have the usual pile of clk driver updates and
additions. The Amlogic meson driver got the most lines in the diffstat
this time around because it added support for a whole bunch of
hardware and duty cycle configuration. After that the Rockchip PX30,
Qualcomm SDM845, and Renesas SoC drivers fill in a majority of the
diff. We're left with the collection of non-critical fixes after that.
Overall it looks pretty quiet this time.
Core:
- Clk duty cycle support
- Proper CLK_SET_RATE_GATE support throughout the tree
New Drivers:
- Actions Semi Owl series S700 SoC clk driver
- Qualcomm SDM845 display clock controller
- i.MX6SX ocram_s clk support
- Uniphier NAND, USB3 PHY, and SPI clk support
- Qualcomm RPMh clk driver
- i.MX7D mailbox clk support
- Maxim 9485 Programmable Clock Generator
- expose 32 kHz PLL on PXA SoCs
- imx6sll GPIO clk gate support
- Atmel at91 I2S audio clk support
- SI544/SI514 clk on/off support
- i.MX6UL GPIO clock gates in CCM CCGR
- Renesas Crypto Engine clocks on R-Car H3
- Renesas clk support for the new RZ/N1D SoC
- Allwinner A64 display engine clock support
- support for Rockchip's PX30 SoC
- Amlogic Meson axg PCIe and audio clocks
- Amlogic Meson GEN CLK on gxbb, gxl and axg
Updates:
- remove an unused variable from Exynos4412 ISP driver
- fix a thinko bug in SCMI clk division logic
- add missing of_node_put()s in some i.MX clk drivers
- Tegra SDMMC clk jitter improvements with high speed signaling modes
- SPDX tagging for qcom and cs2000-cp drivers
- stop leaking con ids in __clk_put()
- fix a corner case in fixed factor clk probing where node is in DT
but parent clk is registered much later
- Marvell Armada 3700 clk_pm_cpu_get_parent() had an invalid return
value
- i.MX clk init arrays removed in place of CLK_IS_CRITICAL
- convert to CLK_IS_CRITICAL for i.MX51/53 driver
- fix Tegra BPMP driver oops when xlating a NULL clk
- proper default configuration for vic03 and vde clks on Tegra124
- mark Tegra memory controller clks as critical
- fix array bounds clamp in Tegra's emc determine_rate() op
- Ingenic i2s bit update and allow UDC clk to gate
- fix name of aspeed SDC clk define to have only one 'CLK'
- fix i.MX6QDL video clk parent
- critical clk markings for qcom SDM845
- fix Stratix10 mpu_free_clk and sdmmc_free_clk parents
- mark Rockchip's pclk_rkpwm_pmu as critical clock, due to it
supplying the pwm used to drive the logic supply of the rk3399
core"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (85 commits)
clk: rockchip: Add pclk_rkpwm_pmu to PMU critical clocks in rk3399
clk: cs2000-cp: convert to SPDX identifiers
clk: scmi: Fix the rounding of clock rate
clk: qcom: Add display clock controller driver for SDM845
clk: mvebu: armada-37xx-periph: Remove unused var num_parents
clk: samsung: Remove unused mout_user_aclk400_mcuisp_p4x12 variable
clk: actions: Add S700 SoC clock support
dt-bindings: clock: Add S700 support for Actions Semi Soc's
clk: actions: Add missing REGMAP_MMIO dependency
clk: uniphier: add clock frequency support for SPI
clk: uniphier: add more USB3 PHY clocks
clk: uniphier: add NAND 200MHz clock
clk: tegra: make sdmmc2 and sdmmc4 as sdmmc clocks
clk: tegra: Add sdmmc mux divider clock
clk: tegra: Refactor fractional divider calculation
clk: tegra: Fix includes required by fence_udelay()
clk: imx6sll: fix missing of_node_put()
clk: imx6ul: fix missing of_node_put()
clk: imx: add ocram_s clock for i.mx6sx
clk: mvebu: armada-37xx-periph: Fix wrong return value in get_parent
...
* clk-qcom-rpmh:
: - Qualcomm RPMh clk driver
clk: qcom: clk-rpmh: Add QCOM RPMh clock driver
* clk-qcom-spdx:
: - SPDX tagging for qcom
clk: qcom: Update SPDX headers for common files
* clk-con-id-leak:
: - Stop leaking con ids in __clk_put()
clk: core: Potentially free connection id
* clk-fixed-factor-populated:
: - Fix a corner case in fixed factor clk probing where node is in DT but
: parent clk is registered much later
clk: clk-fixed-factor: Clear OF_POPULATED flag in case of failure
* clk-mvebu-periph-parent:
: - Marvell Armada 3700 clk_pm_cpu_get_parent() had an invalid return value
clk: mvebu: armada-37xx-periph: Remove unused var num_parents
clk: mvebu: armada-37xx-periph: Fix wrong return value in get_parent
* clk-imx-critical:
: - Convert to CLK_IS_CRITICAL for i.MX51/53 driver
clk: imx51-imx53: Include sizes.h to silence compile errors
clk: imx51-imx53: Annotate critical clocks as CLK_IS_CRITICAL
* clk-tegra-bpmp:
: - Fix Tegra BPMP driver oops when some xlating a NULL clk
clk: tegra: bpmp: Don't crash when a clock fails to register
* clk-tegra-124:
: - Proper default configuration for vic03 and vde clks on Tegra124
clk: tegra: Make vde a child of pll_c3
clk: tegra: Make vic03 a child of pll_c3
* clk-tegra-critical:
: - Mark Tegra memory controller clks as critical
clk: tegra: Mark Memory Controller clock as critical
* clk-tegra-emc-oob:
: - Fix array bounds clamp in Tegra's emc determine_rate() op
clk: tegra: emc: Avoid out-of-bounds bug
It's been busy summer weeks and hence lots of changes, partly for a
few new drivers and partly for a wide range of fixes.
Here are highlights:
ALSA Core:
- Fix rawmidi buffer management, code cleanup / refactoring
- Fix the SG-buffer page handling with incorrect fallback size
- Fix the stall at virmidi trigger callback with a large buffer;
also offloading and code-refactoring along with it
- Various ALSA sequencer code cleanups
ASoC:
- Deploy the standard snd_pcm_stop_xrun() helper in several drivers
- Support for providing name prefixes to generic component nodes
- Quite a few fixes for DPCM as it gains a bit wider use and more
robust testing
- Generalization of the DIO2125 support to a simple amplifier driver
- Accessory detection support for the audio graph card
- DT support for PXA AC'97 devices
- Quirks for a number of new x86 systems
- Support for AM Logic Meson, Everest ES7154, Intel systems with
RT5682, Qualcomm QDSP6 and WCD9335, Realtek RT5682 and TI TAS5707
HD-audio:
- Code refactoring in HD-audio ext codec codes to drop own classes;
preliminary works for the upcoming legacy codec support
- Generalized DRM audio component for the upcoming radeon / amdgpu
support
- Unification of mic mute-LED and GPIO support for various codecs
- Further improvement of CA0132 codec support including Recon3D
- Proper vga_switcheroo handling for AMD i-GPU
- Update of model list in documentation
- Fixups for another HP Spectre x360, Conexant codecs, power-save
blacklist update
USB-audio:
- Fix the invalid sample rate setup with external clock
- Support of UAC3 selector units and processing units
- Basic UAC3 power-domain support
- Support for Encore mDSD and Thesycon-based DSD devices
- Preparation for future complete callback changes
Firewire:
- Add support for MOTU Traveler
Misc:
- The endianess notation fixes in various drivers
- Add fall-through comment in lots of drivers
- Various sparse warning fixes, e.g. about PCM format types
-----BEGIN PGP SIGNATURE-----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=eTIC
-----END PGP SIGNATURE-----
Merge tag 'sound-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"It's been busy summer weeks and hence lots of changes, partly for a
few new drivers and partly for a wide range of fixes.
Here are highlights:
ALSA Core:
- Fix rawmidi buffer management, code cleanup / refactoring
- Fix the SG-buffer page handling with incorrect fallback size
- Fix the stall at virmidi trigger callback with a large buffer; also
offloading and code-refactoring along with it
- Various ALSA sequencer code cleanups
ASoC:
- Deploy the standard snd_pcm_stop_xrun() helper in several drivers
- Support for providing name prefixes to generic component nodes
- Quite a few fixes for DPCM as it gains a bit wider use and more
robust testing
- Generalization of the DIO2125 support to a simple amplifier driver
- Accessory detection support for the audio graph card
- DT support for PXA AC'97 devices
- Quirks for a number of new x86 systems
- Support for AM Logic Meson, Everest ES7154, Intel systems with
RT5682, Qualcomm QDSP6 and WCD9335, Realtek RT5682 and TI TAS5707
HD-audio:
- Code refactoring in HD-audio ext codec codes to drop own classes;
preliminary works for the upcoming legacy codec support
- Generalized DRM audio component for the upcoming radeon / amdgpu
support
- Unification of mic mute-LED and GPIO support for various codecs
- Further improvement of CA0132 codec support including Recon3D
- Proper vga_switcheroo handling for AMD i-GPU
- Update of model list in documentation
- Fixups for another HP Spectre x360, Conexant codecs, power-save
blacklist update
USB-audio:
- Fix the invalid sample rate setup with external clock
- Support of UAC3 selector units and processing units
- Basic UAC3 power-domain support
- Support for Encore mDSD and Thesycon-based DSD devices
- Preparation for future complete callback changes
Firewire:
- Add support for MOTU Traveler
Misc:
- The endianess notation fixes in various drivers
- Add fall-through comment in lots of drivers
- Various sparse warning fixes, e.g. about PCM format types"
* tag 'sound-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (529 commits)
ASoC: adav80x: mark expected switch fall-through
ASoC: da7219: Add delays to capture path to remove DC offset noise
ALSA: usb-audio: Mark expected switch fall-through
ALSA: mixart: Mark expected switch fall-through
ALSA: opl3: Mark expected switch fall-through
ALSA: hda/ca0132 - Add exit commands for Recon3D
ALSA: hda/ca0132 - Change mixer controls for Recon3D
ALSA: hda/ca0132 - Add Recon3D input and output select commands
ALSA: hda/ca0132 - Add DSP setup defaults for Recon3D
ALSA: hda/ca0132 - Add Recon3D startup functions and setup
ALSA: hda/ca0132 - Add bool variable to enable/disable pci region2 mmio
ALSA: hda/ca0132 - Add Recon3D pincfg
ALSA: hda/ca0132 - Add quirk ID and enum for Recon3D
ALSA: hda/ca0132 - Add alt_functions unsolicited response
ALSA: hda/ca0132 - Clean up ca0132_init function.
ALSA: hda/ca0132 - Create mmio gpio function to make code clearer
ASoC: wm_adsp: Make DSP name configurable by codec driver
ASoC: wm_adsp: Declare firmware controls from codec driver
ASoC: max98373: Added software reset register to readable registers
ASoC: wm_adsp: Correct DSP pointer for preloader control
...
Pull ARM clkdev updates from Russell King:
"A couple of cleanups for clkdev"
* 'clkdev' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 8778/1: clkdev: don't call __of_clk_get_by_name() unnecessarily from clk_get()
ARM: 8776/1: clkdev: Remove duplicated negative index check from __of_clk_get()
The way this function is implemented caused some confusion when
converting the TI DaVinci platform to using the common clock framework.
Current kernel supports booting DaVinci boards both in device tree as
well as legacy, board-file mode. In the latter, we always end up
calling clk_get_sys() as of_node is NULL and __of_clk_get_by_name()
returns -ENOENT.
It was not obvious at first glance how clk_get(dev, NULL) will work in
board-file mode since we always call __of_clk_get_by_name(). Let's make
it clearer by checking if of_node is NULL and skipping right to
clk_get_sys().
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: David Lechner <david@lechnology.com>
Reviewed-by: David Lechner <david@lechnology.com>
Reviewed-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
PWM2 is commonly used to control voltage of PWM regulator of VDD_LOG in
RK3399. On the Firefly-RK3399 board, PWM2 outputs 40 KHz square wave
from power on and the VDD_LOG is about 0.9V. When the kernel boots
normally into the system, the PWM2 keeps outputing PWM signal.
But the kernel hangs randomly after "Starting kernel ..." line on that
board. When it happens, PWM2 outputs high level which causes VDD_LOG
drops to 0.4V below the normal operating voltage.
By adding "pclk_rkpwm_pmu" to the rk3399_pmucru_critical_clocks array,
PWM clock is ensured to be prepared at startup and the PWM2 output is
normal. After repeated tests, the early boot hang is gone.
This patch works on both Firefly-RK3399 and ROC-RK3399-PC boards.
Signed-off-by: Levin Du <djw@t-chip.com.cn>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This fix rounds the clock rate properly by using quotient and not
remainder in the calculation. This issue was found while testing HDMI
in the Juno platform.
Fixes: 6d6a1d82ea ("clk: add support for clocks provided by SCMI")
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Amit Daniel Kachhap <amit.kachhap@arm.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add support for the display clock controller found on SDM845
based devices. This would allow display drivers to probe and
control their clocks.
Signed-off-by: Taniya Das <tdas@codeaurora.org>
[sboyd@kernel.org: Remove CLK_GET_RATE_NOCACHE everywhere]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
When building armada-37xx-periph, num_parents isn't used in function
clk_pm_cpu_get_parent:
drivers/clk/mvebu/armada-37xx-periph.c: In function ‘clk_pm_cpu_get_parent’:
drivers/clk/mvebu/armada-37xx-periph.c:419:6: warning: unused variable ‘num_parents’ [-Wunused-variable]
int num_parents = clk_hw_get_num_parents(hw);
^~~~~~~~~~~
Remove the declaration of num_parents to dispose the warning.
Fixes: 616bf80d38 ("clk: mvebu: armada-37xx-periph: Fix wrong return value in get_parent")
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Remove unused 'mout_user_aclk400_mcuisp_p4x12' variable to fix GCC warning:
drivers/clk/samsung/clk-exynos4412-isp.c:40:27: warning:
'mout_user_aclk400_mcuisp_p4x12' defined but not used [-Wunused-const-variable=]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The Exynos5440 (quad-core A15 with GMAC, PCIe, SATA) was targeting
server platforms but it did not make it to the market really. There are
no development boards with it and probably there are no real products
neither. The development for Exynos5440 ended in 2013 and since then
the platform is in maintenance mode.
Removing Exynos5440 makes our life slightly easier: less maintenance,
smaller code, reduced number of quirks, no need to preserve DTB
backward-compatibility.
The Device Tree sources and some of the drivers for Exynos5440 were
already removed. This removes remaining drivers.
-----BEGIN PGP SIGNATURE-----
iQItBAABCAAXBQJbWKG7EBxrcnprQGtlcm5lbC5vcmcACgkQwTdm5oaLg9fNiA//
U/dI+ihiIXHOxtrVRZXNGsmI5545pUqLI5uTE9utvD2j10Ef+T45wOzcJEtVN5ro
+Mnqt32+LC0UfAo721Vfziu91t9HCYdeq6gFfgKS3mm5GPqqmsD7havl/UpT4jvL
JZZLTPoInT2zJ0oZanzIRoM5I7KCOrUikkoVYEq9Z2/DupZ/S1GJLYXq1kY00eXS
xrtNxTyhi6Hmg80h1u93jUfilWPuYvXAuTfK+nyHNXLDkVRAprEXEc0HCdKp0gKT
hCEVd/k2+FsREQSCq5+dCTvYwa/FATqvwU/pKZmhSuN4GOM6b/0kFFvTt0sUswY3
ZFGnEhnXQ9JGHf3/1cXdRn3e/1/5vOyjchKzCdF5Pyo40HIvI1qSK4mhCSO355PO
sIgI2OEEBCqVuu4HUeWDu13M7Q4haSHRCtqVyulT2LsNGRrm3Ko13lCz+knanMqH
4Cs7dLSz4ZqCSC4XYs8lnUvOFu2e/71vYs39QMi9yGro9Wn5T7H4qPNLVUuMER3K
Hwrj5CpGKqBnMt3qFAfsxB0CnHU+yIRb55qp9nTZSUzZ9B++qnDhoDd1ikYtc/yh
EHAnszKGPox2JbBzJRRQtpUq+qegnFaAkjssZf2eY89KKkjw/sHtssMA60dpV1tY
txpP7KiTiM3Cq0/Jdqi5D2kiiiFtpABo1Jb3CLzxlTk=
=3x4x
-----END PGP SIGNATURE-----
Merge tag 'samsung-drivers-exynos5440-4.19' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/drivers
Exynos5440 drivers removal
The Exynos5440 (quad-core A15 with GMAC, PCIe, SATA) was targeting
server platforms but it did not make it to the market really. There are
no development boards with it and probably there are no real products
neither. The development for Exynos5440 ended in 2013 and since then
the platform is in maintenance mode.
Removing Exynos5440 makes our life slightly easier: less maintenance,
smaller code, reduced number of quirks, no need to preserve DTB
backward-compatibility.
The Device Tree sources and some of the drivers for Exynos5440 were
already removed. This removes remaining drivers.
* tag 'samsung-drivers-exynos5440-4.19' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
usb: host: exynos: Remove support for Exynos5440
clk: samsung: Remove support for Exynos5440
cpufreq: exynos: Remove support for Exynos5440
ata: ahci-platform: Remove support for Exynos5440
Signed-off-by: Olof Johansson <olof@lixom.net>
Add USB3 PHY clocks where missing. Use fixed-factor clocks for those
without gating.
For clarification, prefix clock names with 'ss' or 'hs'.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The Denali NAND controller IP needs three clocks:
- clk: controller core clock
- clk_x: bus interface clock
- ecc_clk: clock at which ECC circuitry is run
Currently, only the first one (50MHz) is provided. The rest of the
two clock ports must be connected to the 200MHz clock line. Add this.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
These clocks have low jitter paths to certain parents. To model these
correctly, use the sdmmc mux divider clock type.
Signed-off-by: Peter De-Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Aapo Vienamo <avienamo@nvidia.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add a clock type to model the sdmmc switch divider clocks which have paths
to source clocks bypassing the divider (Low Jitter paths). These
are handled by selecting the lj path when the divider is 1 (ie the
rate is the parent rate), otherwise the normal path with divider
will be selected. Otherwise this clock behaves as a normal peripheral
clock.
Signed-off-by: Peter De-Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Aapo Vienamo <avienamo@nvidia.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Move this to a separate file so it can be used to calculate the sdmmc
clock dividers.
Signed-off-by: Peter De-Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Aapo Vienamo <avienamo@nvidia.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add the missing linux/delay.h include statement for udelay() used by
fence_udelay() macro.
Signed-off-by: Aapo Vienamo <avienamo@nvidia.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
of_find_compatible_node() is returning a device node with refcount
incremented and must be explicitly decremented after the last use
which is right after the us in of_iomap() here.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Fixes: 4a5f720b65 ("clk: imx: add clock driver for imx6sll")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
of_find_compatible_node() is returning a device node with refcount
incremented and must be explicitly decremented after the last use
which is right after the us in of_iomap() here.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Fixes: 787b4271a6 ("clk: imx: add imx6ul clk tree support")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
i.MX6SX has a 16KB always-on ocram bank called
ocram_s, and its clock gate in CCM CCGR1 CG14
needs to be enabled before access, add it to
clock tree.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The return value of the get_parent operation is a u8, whereas a -EINVAL
was returned. This wrong value was return if the value was bigger that
the number of parent but this case was already handled by the core.
So we can just remove this chunk of code to fix the issue.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: 9818a7a4fd ("clk: mvebu: armada-37xx-periph: prepare cpu clk to
be used with DVFS")
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Fixed factor clock has two initializations at of_clk_init() time
and during platform driver probe. Before of_clk_init() call,
node is marked as populated and so its probe never gets called.
During of_clk_init() fixed factor clock registration may fail if
any of its parent clock is not registered. In this case, it doesn't
get chance to retry registration from probe. Clear OF_POPULATED
flag if fixed factor clock registration fails so that clock
registration is attempted again from probe.
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Patch "clk: core: Copy connection id" made it so that the connector id
'con_id' is kstrdup_const()ed to cater to drivers that pass non-constant
connection ids. The patch added the corresponding kfree_const to
__clk_free_clk(), but struct clk's can be freed also via __clk_put().
Add the kfree_const call to __clk_put() and add comments to both
functions to remind that the logic in them should be kept in sync.
Fixes: 253160a8ad ("clk: core: Copy connection id")
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
SPDX headers updated for common/branch/pll/regmap files.
Signed-off-by: Taniya Das <tdas@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The Exynos5440 is not actively developed, there are no development
boards available and probably there are no real products with it.
Remove wide-tree support for Exynos5440.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Sylwester Nawrocki <snawrocki@kernel.org>
Add the RPMh clock driver to control the RPMh managed clock resources on
some of the Qualcomm Technologies, Inc. SoCs.
Signed-off-by: Taniya Das <tdas@codeaurora.org>
[sboyd@kernel.org: Clean up whitespace, indentation, remove
cmd_db_ready check]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
__of_clk_get() calls of_parse_phandle_with_args(), which rejects
negative indices since commit bd69f73f2c ("of: Create function for
counting number of phandles in a property").
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Add clkctrl data for the m_can clocks and register it within the
clkctrl driver
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
CC: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Switching the CPU from the L2 or L3 frequencies (300 and 200 Mhz
respectively) to L0 frequency (1.2 Ghz) requires a significant amount
of time to let VDD stabilize to the appropriate voltage. This amount of
time is large enough that it cannot be covered by the hardware
countdown register. Due to this, the CPU might start operating at L0
before the voltage is stabilized, leading to CPU stalls.
To work around this problem, we prevent switching directly from the
L2/L3 frequencies to the L0 frequency, and instead switch to the L1
frequency in-between. The sequence therefore becomes:
1. First switch from L2/L3(200/300MHz) to L1(600MHZ)
2. Sleep 20ms for stabling VDD voltage
3. Then switch from L1(600MHZ) to L0(1200Mhz).
It is based on the work done by Ken Ma <make@marvell.com>
Cc: stable@vger.kernel.org
Fixes: 2089dc33ea ("clk: mvebu: armada-37xx-periph: add DVFS support for cpu clocks")
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
GEN_CLK is able to route several internal clocks to one of the SoC
pads. In the future, even more clocks could be made accessible using
cts_msr_clk - the clock measure block.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Adding clocks for the pcie driver. Due to the ASIC design,
the pcie controller re-use part of the mipi clock logic,
so the mipi clock is also added.
Tested-by: Jianxin Qin <jianxin.qin@amlogic.com>
Signed-off-by: Yixun Lan <yixun.lan@amlogic.com>
[amended to remove unnecessary locales]
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
clk-audio-divider is no longer used, we can remove it.
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
It is actually a lot easier to setup the PLL with carefully chosen rates
than relying on CCF clock propagation for this audio use case.
This way, we can make sure we will always be able to provide the common
audio clock rates, while having the PLL in the optimal operating range.
For this, we stop the rate propagation at the mux picking the
PLL and let it round to the closest matching PLL.
Doing so, we can use the generic divider for the i2s clock.
clk-audio-divider is no longer required. It was a (poor) attempt
to use CCF rate propagation while making sure the PLL rate would
be high enough to work with audio use cases.
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
The axg audio clock controller is the clock generation unit for the
amlogic audio subsystem of A113 based SoCs. It may be clocked by 8
different plls provided by the primary clock controller and also by
10 slave bit clocks and 10 slave sample clocks which may be provided
by external components, such as audio codecs, through the SoC pads.
It contains several muxes, dividers and gates which are fed into the
the different devices of the audio subsystem.
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Add a driver to control the clock divider found in the sample clock
generator of the axg audio clock controller.
The sclk divider accumulates specific features which make the generic
divider unsuitable to control it:
- zero based divider (div = val + 1), but zero value gates the clock,
so minimum divider value is 2.
- lrclk variant may adjust the duty cycle depending the divider value
and the 'hi' value.
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Add a driver to control the output of the sample clock generator found
in the axg audio clock controller.
The goal of this driver is to coherently control the phase provided to
the different element using the sample clock generator. This simplify
the usage of the sample clock generator a lot, without comprising the
ability of the SoC.
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Add a driver based meson clk-regmap to control clock phase on
amlogic SoCs
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Clean the dependencies in meson clock Kconfig.
CLK_AMLOGIC should actually select CLK_REGMAP_MESON which it uses. Also,
each platform should select CLK_AMLOGIC, so everything is properly turned
on when the platform Kconfig enable each configuration flag
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
The legacy method to access the hhi register space is not longer used.
We can safely drop it now.
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Apparently there was an attempt to avoid out-of-bounds accesses when there
is only one memory timing available, but there is a typo in the code that
neglects that attempt.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Memory Controller should be always-on. Currently the sibling EMC clock is
marked as critical, let's mark MC clock too for consistency.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-By: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The current default is to leave the VDE clock's parent at the default,
which is clk_m. However, that is not a configuration that will allow the
VDE to function. Reparent it to pll_c3 instead to make sure the hardware
can actually decode video content.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
By default, the vic03 clock is a child of pll_m but that runs at 924 MHz
which is too fast for VIC. Make vic03 a child of pll_c3 by default so it
will run at a supported frequency.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
When registering clocks, we just skip any that fail to register
(leaving a NULL hole in the clock table). However, our of_xlate
function still tries to dereference each entry while looking for
the clock with the requested id, causing a crash if any clocks
failed to register. Add a check to of_xlate to skip any NULL
clocks.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Register, shift and mask were wrong according to datasheet.
Fixes: 115510053e ("clk: rockchip: add clock controller for the RK3399")
Cc: stable@vger.kernel.org
Signed-off-by: Alberto Panizzo <alberto@amarulasolutions.com>
Signed-off-by: Anthony Brandon <anthony@amarulasolutions.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Frequency table macro is used by multiple clock drivers, move frequency
table macro to common header file.
Signed-off-by: Taniya Das <tdas@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This driver uses sizes.h, but relies on it being implicitly included
somewhere else breaking random direct compilation of the file. Include
sizes.h so we can build it those configurations too for better compile
coverage.
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Instead of explicitly enabling critical clocks via clk_prepare_enable(),
let's use the standard CLK_IS_CRITICAL flag instead, which makes the code
a bit shorter.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
According to Reference Manual Rev.0, 06/2017, there are GPIO LPCGs
defined in CCM CCGRs, add them into clock tree.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The SDCLK was named SDCLKCLK, and no one has used this yet.
Fix it.
Signed-off-by: Lei YU <mine260309@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This clock is especially used by the RTC driver, so export it so that
devicetree users can use it.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This is used by the host to talk to the BMC's PCIe slave device. The BMC
is not involved, but the clock needs to be enabled so the host can use
the device.
Fixes: 15ed8ce5f8 ("clk: aspeed: Register gated clocks")
Cc: stable@vger.kernel.org # 4.15
Acked-by: Andrew Jeffery <andrew@aj.id.au>
Tested-by: Lei YU <mine260309@gmail.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This patch adds a driver for MAX9485, a programmable audio clock generator.
The device requires a 27.000 MHz clock input. It can provide a gated
buffered output of its input clock and two gated outputs of a PLL that can
generate one out of 16 discrete frequencies. There is only one PLL however,
so the two gated outputs will always have the same frequency but they can
be switched individually.
The driver for this device exposes 4 clocks in total:
- MAX9485_MCLKOUT: A gated, buffered output of the input clock
- MAX9485_CLKOUT: A PLL that can be configured to 16 different
discrete frequencies
- MAX9485_CLKOUT[1,2]: Two gated outputs for MAX9485_CLKOUT
Some PLL output frequencies can be achieved with different register
settings. The driver will select the one with lowest jitter in such cases.
Signed-off-by: Daniel Mack <daniel@zonque.org>
[sboyd@kernel.org: Use local variable for val in max9485_clkout_recalc_rate()
and shorten line of max9485_of_clk_get()]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The UDC clock of the JZ4740 SoC can be gated, but the data structure
representing it was missing the CGU_CLK_GATE flag to make it work.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The register field for configuring the divider for the i2s clock
occupies the bits [8-0], which means 9 bits and not 8.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Patch (7705bb7176 clk: qcom: mmcc-msm8996: leave all mmagic gdscs
and clocks always enabled") makes all mmgaic gdscs ALWAYS_ON.
The mmagic_bimc_gdsc is also needed to be turned on to get display
working on 8x96.
Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Cc: Rajendra Nayak <rnayak@codeaurora.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Fixes: 7705bb7176 ("clk: qcom: mmcc-msm8996: leave all mmagic gdscs and clocks always enabled")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This driver is a simple muxing driver that controls the
I2S's clock input by using syscon/regmap to change the parent.
The available inputs can be peripheral clock and generated clock.
Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
[sboyd@kernel.org: Fix SPDX tag comment style]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The first parent of the sdmmc_free_clk should be the main_sdmmc_clk.
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add a clock mux that is used as a parent for the mpu_free_clk.
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
- fix racalculation error in the clk_audio_divider
-----BEGIN PGP SIGNATURE-----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=QyDk
-----END PGP SIGNATURE-----
Merge tag 'meson-clk-fixes-4.18-1' of https://github.com/BayLibre/clk-meson into clk-fixes
Pull Amlogic clk driver fixes from Jerome Brunet:
These are two simple fixes, yet the first one is quite important as it
solves boots hangs we've been having when FDIV2 gets disabled. This did
not show up before because this particular clock is heavily used and
only gets disabled for a very short period of time before modules (such
as ethernet or emmc) probe.
- fix boot issue with gxbb and gxl platforms
- fix racalculation error in the clk_audio_divider
* tag 'meson-clk-fixes-4.18-1' of https://github.com/BayLibre/clk-meson:
clk: meson: audio-divider is one based
clk: meson-gxbb: set fclk_div2 as CLK_IS_CRITICAL
On some systems, we come out of the bootloader with some
gates set with the clock "enabled" but the reset also
asserted.
Since 8a53fc511c "clk: aspeed: Prevent reset if clock is enabled"
we check that enabled bit in aspeed_clk_enabled(), and do
nothing if already set.
This breaks when the above scenario occurs, as the clock
is enabled, but the reset still needs to be lifted.
This patch fixes it by also checking the reset bit (if any)
and treating a gate in "reset" as being disabled.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Fixes: 8a53fc511c "clk: aspeed: Prevent reset if clock is enabled"
Cc: Eddie James <eajames@linux.vnet.ibm.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The last-minute fold-in of the ENTRY() macro did change behavior:
instead of printing the symbolic name (e.g. "CLK_IS_BASIC"), it prints
the expansion of it (e.g. "(1UL << (5))").
Use "#" instead of __stringify() to fix this.
Fixes: a6059ab981 ("clk: Show symbolic clock flags in debugfs")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
We want to use the ti-aemif platform driver for da830-evm. To make it
work we need a lookup entry for the aemif clock.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: David Lechner <david@lechnology.com>
Signed-off-by: David Lechner <david@lechnology.com>
We want to be able to get the clock both from the board file by its
con_id and from the aemif driver by dev_id.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: David Lechner <david@lechnology.com>
Signed-off-by: David Lechner <david@lechnology.com>
We want to be able to get the clock both from the board file by its
con_id and from the aemif driver by dev_id.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: David Lechner <david@lechnology.com>
Signed-off-by: David Lechner <david@lechnology.com>
We want to be able to get the clock both from the board file by its
con_id and from the aemif driver by dev_id.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: David Lechner <david@lechnology.com>
Signed-off-by: David Lechner <david@lechnology.com>
Since commit a8e3923ab5 ("mtd: rawnand: davinci: don't acquire and
enable clock") we no longer acquire the aemif clock from the davinci
nand driver - we only do it from the ti-aemif driver. Remove the nand
entry from the psc lookup table.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: David Lechner <david@lechnology.com>
Signed-off-by: David Lechner <david@lechnology.com>
Add the clock tree definition for the new px30 SoC.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
The new Rockchip socs have optional half divider:
The formula is shown as:
freq_out = 2*freq_in / (2*div + 3)
Is this the same for all of new SoCs.
So we use "branch_half_divider" + "COMPOSITE_NOMUX_HALFDIV \
DIV_HALF \ COMPOSITE_HALFDIV \ CMPOSITE_NOGATE_HALFDIV"
to hook that special divider clock-type into our clock-tree.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
There are certain clocks which needs to be always enabled for system
operation. Add support for the same by adding 'CLK_IS_CRITICAL' flag
for such clocks.
Signed-off-by: Amit Nischal <anischal@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
q/dl datasheets list the 5th selection value for ck01_sel as
video_27M_clk_root.
By replacing the dummy value we then can set IMX6QDL_CLK_VIDEO_27M
as parent for IMX6QDL_CLK_CKO1_SEL.
Signed-off-by: Philipp Puschmann <pp@emlix.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Clock framework will enable those clocks registered
with CLK_IS_CRITICAL flag, so no need to have
clks_init_on array during clock initialization now.
ARM clock is busy divider type which has the
CLK_IS_CRITICAL flag set by default when registered.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
i.MX6UL has GPIO clock gates in CCM CCGR,
add them into clock tree for clock management.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Clock framework will enable those clocks registered
with CLK_IS_CRITICAL flag, so no need to have
clks_init_on array during clock initialization now.
ARM clock is busy divider type which has the
CLK_IS_CRITICAL flag set by default when registered.
IPG clock has no clock gate and its parent AHB clock
is busy divider type, so no need to add CLK_IS_CRITICAL
flag for IPG clock.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Clock framework will enable those clocks registered
with CLK_IS_CRITICAL flag, so no need to have
clks_init_on array during clock initialization now.
ARM clock is busy divider type which has the
CLK_IS_CRITICAL flag set by default when registered.
IPG clock has no clock gate and its parent AHB clock
is busy divider type, so no need to add CLK_IS_CRITICAL
flag for IPG clock.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Clock framework will enable those clocks registered
with CLK_IS_CRITICAL flag, so no need to have
clks_init_on array during clock initialization now.
ARM clock is busy divider type which has the
CLK_IS_CRITICAL flag set by default when registered.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This adds prepare/unprepare/is_prepared functionality to the drivers for
the SI544 and SI514 chips, allowing the clock output to be disabled when
the clock is not in use.
Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
As claiming Allwinner A64 SRAM C is a prerequisite for all sub-blocks of
the A64 DE2, not only the CCU sub-block, a bus driver is then written for
enabling the access to the whole DE2 part by claiming the SRAM.
In this situation, the A64 compatible string will be just added with no
other requirments, as they're processed by the parent bus driver.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
