There are 2 IP blocks pin routes need to be switched, that are
uart2dbg, pcie_clkreq.
Signed-off-by: David Wu <david.wu@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
There are 8 IP blocks pin routes need to be switched, that are
uart2dbg, gmac-m1-optimized, pdm, spi, i2s2, card, tsp, cif.
Signed-off-by: David Wu <david.wu@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
There are 9 IP blocks pin routes need to be switched, that are
pwm-0, pwm-1, pwm-2, pwm-3, sdio, spi, emmc, uart2, uart1.
Signed-off-by: David Wu <david.wu@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
On the some rockchip SOCS, some things like rk3399 specific uart2 can use
multiple pins. Somewhere between the pin io-cells and the uart it seems
to have some sort of switch to decide to which pin to actually route the
data.
+-------+ +--------+ /- GPIO4_B0 (pinmux 2)
| uart2 | -- | switch | --- GPIO4_C0 (pinmux 2)
+-------+ +--------+ \- GPIO4_C3 (pinmux 2)
(switch selects one of the 3 pins base on the GRF_SOC_CON7[BIT0, BIT1])
The routing switch is determined by one pin of a specific group to be set
to its special pinmux function. If the pinmux setting is wrong for that
pin the ip block won't work correctly anyway.
Signed-off-by: David Wu <david.wu@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Fix compile errors due to missing OF.
Cc: Paul Cercueil <paul@crapouillou.net>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The Amlogic Meson GXL SoCs embeds an 10/100 Ethernet PHY, this patchs enables
the Link and Activity LEDs signals.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add the AO and EE domain CEC pins for the Amlogic Meson GXL SoCs.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add the AO and EE domain CEC pins for the Amlogic Meson GXBB SoCs.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The AO SPDIF pins were incorrectly defined with the EE pin offset.
Fixes: b840d649f9 ("pinctrl: meson: gxl: add spdif output pins")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The AO I2S pins were incorrectly defined with the EE pin offset.
Fixes: 2899adf042 ("pinctrl: meson: gxl: add i2s output pins")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
GPIODV_18 entry was missing in the original driver push.
Fixes: 468c234f9e ("pinctrl: amlogic: Add support for Amlogic Meson GXBB SoC")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Fixups here tend to be more of a conglomerate of some of the other
repeated/systematic ones we've seen in the earlier pinctrl cleanups.
We remove module.h from code that isn't doing anything modular at
all; if they have __init sections, then replace it with init.h
One driver has a .remove that would be dispatched on module_exit,
and as that code is essentially orphaned, so we remove it. In case
anyone was previously doing the (pointless) unbind to get to that
function, we disable unbind for this one driver as well.
A couple bool drivers (hence non-modular) are converted over to
to builtin_platform_driver().
Since module_platform_driver() uses the same init level priority as
builtin_platform_driver() the init ordering remains unchanged with
this commit.
Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
We also delete the MODULE_LICENSE tag etc. since all that information
was (or is now) contained at the top of the file in the comments.
Cc: Eric Anholt <eric@anholt.net>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Jon Mason <jonmason@broadcom.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Ray Jui <rjui@broadcom.com>
Cc: Scott Branden <sbranden@broadcom.com>
Cc: Sherman Yin <syin@broadcom.com>
Cc: bcm-kernel-feedback-list@broadcom.com
Cc: linux-gpio@vger.kernel.org
Cc: linux-rpi-kernel@lists.infradead.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
None of the Kconfigs for any of these drivers are tristate,
meaning that they currently are not being built as a module by anyone.
Lets remove the modular code that is essentially orphaned, so that
when reading the drivers there is no doubt they are builtin-only. All
drivers get similar changes, so they are handled in batch.
We remove module.h from code that isn't doing anything modular at
all; if they have __init sections, then replace it with init.h.
A couple drivers have module_exit() code that is essentially orphaned,
and so we remove that.
Quite a few bool drivers (hence non-modular) are converted over to
to builtin_platform_driver().
Since module_platform_driver() uses the same init level priority as
builtin_platform_driver() the init ordering remains unchanged with
this commit.
Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
We also delete the MODULE_LICENSE tag etc. since all that information
was (or is now) contained at the top of the file in the comments.
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Pritesh Raithatha <praithatha@nvidia.com>
Cc: Ashwini Ghuge <aghuge@nvidia.com>
Cc: linux-gpio@vger.kernel.org
Cc: linux-tegra@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Use of_device_get_match_data() instead of of_match_device().
It allows us to remove the forward declaration of pcs_of_match.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
There are a couple of issues with group_desc initialization in function
zx_pinctrl_build_state().
- num_pins is not initialized and remains zero.
- pins shouldn't be initialized with a pointer to variable in the
stack.
With them fixed, pin_request() in pinmux_enable_setting() can be invoked
correctly.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The SPICC controller has dedicated SPI pins, this patchs add the pins
definition in the GXBB pinctrl driver
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The SPICC controller has dedicated SPI pins, this patchs add the pins
definition in the GXL pinctrl driver.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The pinctrl-exynos.h header is included only once so till now it did not
require an include guard. However adding such is harmless and makes
code prepared for more inclusions.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Fixups here tend to be more all over the map vs. some of the other
repeated/systematic ones we've seen elsewhere.
We remove module.h from code that isn't doing anything modular at
all; if they have __init sections, then replace it with init.h
A couple drivers have module_exit() code that is essentially orphaned,
and so we remove that.
There are no module_init replacements, so we have no concerns wrt.
initcall ordering changes as per some of the other cleanups.
Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
We also delete the MODULE_LICENSE tag etc. since all that information
was (or is now) contained at the top of the file in the comments.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
We use well known standard names for functions that have name, such as
I2C, SPI, SPDIF, etc..
Fix the function name of SPDIF, which was named OWA (One Wire Audio)
based on Allwinner datasheets.
Fixes: 4730f33f0d ("pinctrl: sunxi: add allwinner A83T PIO controller
support")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
We use well known standard names for functions that have name, such as
I2C, SPI, SPDIF, etc..
Fix the function name of SPDIF, which was named OWA (One Wire Audio)
based on Allwinner datasheets.
Fixes: 4730f33f0d ("pinctrl: sunxi: add allwinner A83T PIO controller
support")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
To set the mux mode of a pin two bits must be set. Up to now this is
implemented using the following idiom:
writel(mask, reg + CLR);
writel(value, reg + SET);
. This however results in the mux mode being 0 between the two writes.
On my machine there is an IC's reset pin connected to LCD_D20. The
bootloader configures this pin as GPIO output-high (i.e. not holding the
IC in reset). When Linux reconfigures the pin to GPIO the short time
LCD_D20 is muxed as LCD_D20 instead of GPIO_1_20 is enough to confuse
the connected IC.
The same problem is present for the pin's drive strength setting which is
reset to low drive strength before using the right value.
So instead of relying on the hardware to modify the register setting
using two writes implement the bit toggling using read-modify-write.
Fixes: 17723111e6 ("pinctrl: add pinctrl-mxs support")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
It turns out there are quite many Chromebooks out there that have the
same keyboard issue than Acer Chromebook. All of them are based on
Intel_Strago reference and report their DMI_PRODUCT_FAMILY as
"Intel_Strago" (Samsung Chromebook 3 and Cyan Chromebooks are exceptions
for which we add separate entries).
Instead of adding each machine to the quirk table, we use
DMI_PRODUCT_FAMILY of "Intel_Strago" that hopefully covers most of the
machines out there currently.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=194945
Suggested: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The driver supports using mcp23xxx as interrupt controller, so
let's drop all comments stating otherwise.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This moves irq property handling from spi/i2c specific code into
the generic mcp23s08_probe_one. This is possible because the
device properties are named equally.
As a side-effect this drops support for setting the properties via
pdata, which has no mainline users. If boardcode wants to enable
the chip as interrupt controller it can attach the device properties
instead.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Simplify spi pdata handling, so that it uses pdata when available
and falls back to reading device properties otherwise.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Simplify i2c pdata handling, so that it uses pdata when available
and falls back to reading device properties otherwise.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Switching to devm_gpiochip_add_data simplifies the driver's
cleanup routine and safes a few loc.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Let's remove a few lines of code by using managed memory for mcp
variable.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
i2c-core and spi-core already assign the irq, so we
can drop the additional call from the mcp driver.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The driver compiles & works perfectly fine without OF_GPIO on x86,
so lets drop the dependency.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Instead of using custom caching, this switches to regmap based
caching. Before the conversion the debugfs file used uncached
values, so that it was easily possible to see power-loss related
problems. The new code will check and recover at this place.
The patch will also ensure, that irqs are not cleared by checking
register status in debugfs.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
mcp23s08 support configuration of the pullups using the
pinconf framework. This removes the custom pullup configuration
from platform data, which has no upstream users.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
mcp23xxx device have configurable 100k pullup resistors. This adds
support for enabling them using pinctrl's pinconf interface.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This moves the mcp23s08 driver from gpio to pinctrl. Actual
pinctrl support for configuration of the pull-up resistors
follows in its own patch.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Andre Przywara <andre.przywara@arm.com> noticed that we can get the
following warning with -EPROBE_DEFER:
"WARNING: CPU: 1 PID: 89 at drivers/base/dd.c:349
driver_probe_device+0x2ac/0x2e8"
Let's fix the issue by removing the indices as suggested by
Tejun Heo <tj@kernel.org>. All we have to do here is kill the radix
tree.
I probably ended up with the indices after grepping for removal
of all entries using radix_tree_for_each_slot() and the first
match found was gmap_radix_tree_free(). Anyways, no need for
indices here, and we can just do remove all the entries using
radix_tree_for_each_slot() along how the item_kill_tree() test
case does.
Fixes: c7059c5ac7 ("pinctrl: core: Add generic pinctrl functions for managing groups")
Fixes: a76edc89b1 ("pinctrl: core: Add generic pinctrl functions for managing groups")
Reported-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Tested-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This driver handles pin configuration and pin muxing for the
JZ4740 and JZ4780 SoCs from Ingenic.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
When pinctrl device registers, it automatically claims hogs, that is,
maps that pinctrl device serves for itself.
It is possible that in addition to SoC's pinctrl device, other pinctrl
devices get registered. E.g. some gpio expander devies are registered
as pinctrl devices. For such devices, pinctrl maps could be defined
that set up SoC's pins (e.g. interrupt pin for gpio expander). Such
a map will have target device set to gpio expander.
Here is device tree snippet that causes this scenario:
&i2c0 {
sx1503@20 {
compatible = "semtech,sx1503q";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_sx1503_20>;
...
};
};
...
&iomuxc {
pinctrl_sx1503_20: pinctrl-sx1503-20 {
fsl,pins = <
VF610_PAD_PTB1__GPIO_23 0x219d
>;
};
};
Such a map will have target device set to gpio expander. However is not
a hog, it is a regular map that is claimed by core before gpio expander
device is probed.
Thus when looking for hogs, it is not enough to check that map's target
device is set to pinctrl device being registered. Need also check that
map's control device is also set to the same.
Signed-off-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
MX7ULP MUX mode mask and shift bit is different from VF610.
Let's make it a platform specific property for the later easy of
adding MX7ULP support.
One trick in exist code that Vybrid hardcoded the config part
as 0xffff because its mux_config register BIT[15-0] are all configs
part. But it's not true in ULP, so use mux_mask instead to address
the difference.
Cc: Stefan Agner <stefan@agner.ch>
Cc: Bai Ping <ping.bai@nxp.com>
Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The design is based on the exist architecture that the core will
provide a uniformed way to decode the generic pin config into platform
config register raw data according to the imx_cfg_params_decode maps
registered by platform.
Two useful macros, IMX_CFG_PARAMS_DECODE and IMX_CFG_PARAMS_DECODE_INVERT,
are created for platform to register decode map conveniently.
In order to cope with some special case, a platform specific fixup()
function is also available to use.
Note that rather than fully utilizing the generic pinconf support
provided by pinctrl core, IMX only adopts the device tree bindings
of generic pinconf. The config used in .pin_config_get[set] are raw
register data instead of generic one which makes us align the exist
using. And that's also why we cannot set pinconf_ops.is_generic.
Cc: Bai Ping <ping.bai@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The original implemented debug message does not work for
SHARE_MUX_CONF_REG case. This patch fixes it.
Fixes: bf5a530971 ("pinctrl: imx: add VF610 support to imx pinctrl framework")
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
If 'devm_kzalloc' fails, a NULL pointer will be dereferenced.
Return -ENOMEM instead, as done for the other memory allocation just a
few lines below.
BTW, change the 'devm_kzalloc' into a 'devm_kcalloc'.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
mt7623 pinctrl hardware can be compatible with mt2701 driver,
so the patch lets the pinctrl on mt7623 SoC reuse the driver
and deletes those redundant ones.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Acked-by: John Crispin <john@phrozen.org>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This adds another missing pin found in the Meson8 SoCs. Currently
there's no driver which would use this pin yet.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This adds another missing pin found in the Meson8 SoCs. Currently
there's no driver which would use this pin yet.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This adds support for the I2S and SPDIF input and output pins, similar
to what we have on GXBB and GXL.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This adds the missing pins for the PWM controllers found in Amlogic
Meson8 SoCs. This includes the pins for PWM_A, PWM_B, PWM_C, PWM_D,
PWM_E and PWM_F controllers.
There is an additional PWM function with the name PWM_VS in the vendor
kernel sources which seems to be used for external video input. Thus
it's not part of this change as the IP block behind the pwm-meson driver
is not responsible for these pins.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
The script “checkpatch.pl” pointed information out like the following.
Comparison to NULL could be written …
Thus fix the affected source code places.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
A single character (line break) should be put into a sequence.
Thus use the corresponding function "seq_putc".
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The script "checkpatch.pl" pointed information out like the following.
CHECK: spaces preferred around that '+' (ctx:VxV)
Thus fix the affected source code places.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The script "checkpatch.pl" pointed information out like the following.
WARNING: quoted string split across lines
Thus fix the affected source code place.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
The script “checkpatch.pl” pointed information out like the following.
Comparison to NULL could be written !…
Thus fix the affected source code places.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Strings which did not contain data format specifications should be put
into a sequence. Thus use the corresponding function "seq_puts".
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Updating the point of contact for AMD GPIO driver.
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Signed-off-by: Nehal Shah <Nehal-bakulchandra.Shah@amd.com>
Cc: Ken Xue <Ken.Xue@amd.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
A single character (line break) should be put into a sequence.
Thus use the corresponding function "seq_putc".
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The Armada 37xx SoCs can handle interrupt through GPIO. However it can
only manage the edge ones.
The way the interrupt are managed is classical so we can use the generic
interrupt chip model.
The only unusual "feature" is that many interrupts are connected to the
parent interrupt controller. But we do not take advantage of this and use
the chained irq with all of them.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The pin controller on ZTE ZX platforms is kinda of hybrid. It consists
of a main controller and an auxiliary one. For example, on ZX296718 SoC,
the main controller is TOP_PMM and the auxiliary one is AON_IOCFG. Both
controllers work together to control pin multiplexing and configuration.
For most of pins, the pinmux function is controlled by main controller
only, and this type of pins are meant by term 'TOP pins'. For other
pins, the pinmux is controlled by both main and auxiliary controllers,
as the available multiplexing functions for the pin spread in both
controllers. This type of pins are called 'AON pins'. Though pinmux
implementation is quite different, pinconf is same for both types of
pins. Both are controlled by auxiliary controller, i.e. AON_IOCFG on
ZX296718.
The patch adds the ZTE ZX core pinctrl driver to support this hybrid
pin controller as well as ZX296718 SoC specific pin data.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This reverts commit 8c58f1a7a4.
It turns out that applying these generic properties was
premature: the properties used in the driver using this
are of unclear electrical nature and the subject need to
be discussed.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Make sure dmi_system_id tables are NULL terminated.
Fixes: 7036502783 ("pinctrl: cherryview: Add a quirk to make Acer
Chromebook keyboard work again")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Renesas RZ/G1E (R8A7745) is pin compatible with R-Car E2 (R8A7794),
however it doesn't have several automotive specific peripherals.
Annotate all the items that only exist on the R-Car SoCs...
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Rob Herring <robh@kernel.org>
[geert: Drop annotations, as they are implied by pin groups/functions]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
The R8A7794 PFC driver was apparently based on the preliminary revisions
of the user's manual which had some signals and MOD_SEL register fields
described which the recent manual changed to reserved. Of course, these
signals haven't ever been really used, which makes removing them
painless.
While at it, make the large *enum* look better by starting a new line
each time a new row in the IPSR and MOD_SEL register field tables is
started.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
The ATA_AVTP_* signals are documented as reserved in the recent R-Car E2
user's manual (the only remaining mention is in the table 5.2 and I believe
it's a simple overlook). Remove the AVB_AVTP_* pinmux groups -- we will
remove the signals themselves in the next patch, along with the other now
reserved bits...
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
The R8A7794 PFC driver was apparently based on the preliminary revisions
of the user's manual which called I2C5 device IIC0 and IIC0 device IIC1.
Luckily, these signals haven't been used for any functions/groups so
far, so the renaming should be painless..
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Renesas RZ/G1M (R8A7743) is pin compatible with R-Car M2-W/N (R8A7791/3),
however it doesn't have several automotive specific peripherals. Annotate
all the items that only exist on the R-Car SoCs and only supply the pin
groups/functions existing on a given SoC...
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Rob Herring <robh@kernel.org>
[geert: Drop annotations, as they are implied by pin groups/functions]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
R-Car Gen3 is using SSI_{WS,SCK}349 instead of SSI_{WS,SCK}34.
But, current code is based on old datasheet which had typo.
This patch fixes this typo.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
R-Car Gen3 is using SSI_{WS,SCK}349 instead of SSI_{WS,SCK}34.
But, current code is based on old datasheet which had typo.
This patch fixes this typo.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
R-Car Gen3 is using SSI_{WS,SCK}349 instead of SSI_{WS,SCK}34.
But, current code is based on old datasheet which had typo.
This patch fixes this typo.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
of_device_id::data is an opaque pointer. No explicit cast is needed.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Based on Rev 0.50 or later R-Car Gen3 datasheet.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Group the AVB pins into similar groups as found in other sh-pfc drivers.
The pins can not be muxed between functions other than AVB, but their
drive strengths can be controlled.
The group avb_mdc containing ADV_MDC and ADV_MDIO is called avb_mdio on
R-Car Gen2 SoCs. In pfc-r8a7796 the avb_mdc group already existed and
is in use in DT. Therefore add the ADV_MDIO pin to the existing group
instead of renaming it.
Based on commit b25719eb93 ("pinctrl: sh-pfc: r8a7795: Add group
for AVB MDIO and MII pins").
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
The R8A7791 PFC driver was apparently based on the preliminary revisions
of the user's manual, which called all the I2C signals {SCL|SDA}<n> and
MOD_SEL register fields SEL_IIC<n> without making a difference between
two types of the I2C controllers used. The recent manual calls the
signals {I2C|IIC}<n>_{SCL|SDA> and the MOD_SEL fields SEL_{I2C|IIC}<n>
finally making this difference. Follow the suit...
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Core changes:
- Add bi-directional and output-enable pin configurations to
the generic bindings and generic pin controlling core.
New drivers or subdrivers:
- Armada 37xx SoC pin controller and GPIO support.
- Axis ARTPEC-6 SoC pin controller support.
- AllWinner A64 R_PIO controller support, and opening up the
AllWinner sunxi driver for ARM64 use.
- Rockchip RK3328 support.
- Renesas R-Car H3 ES2.0 support.
- STM32F469 support in the STM32 driver.
- Aspeed G4 and G5 pin controller support.
Improvements:
- A whole slew of realtime improvements to drivers implementing
irqchips: BCM, AMD, SiRF, sunxi, rockchip.
- Switch meson driver to get the GPIO ranges from the device
tree.
- Input schmitt trigger support on the Rockchip driver.
- Enable the sunxi (AllWinner) driver to also be used on ARM64
silicon.
- Name the Qualcomm QDF2xxx GPIO lines.
- Support GMMR GPIO regions on the Intel Cherryview. This
fixes a serialization problem on these platforms.
- Pad retention support for the Samsung Exynos 5433.
- Handle suspend-to-ram in the AT91-pio4 driver.
- Pin configuration support in the Aspeed driver.
Cleanups:
- The final name of Rockchip RK1108 was RV1108 so rename the
driver and variables to stay consistent.
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Merge tag 'pinctrl-v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
"This is the bulk of pin control changes for the v4.12 cycle.
The extra week before the merge window actually resulted in some of
the type of fixes that usually arrive after the merge window already
starting to trickle in from eager developers using -next, I'm
impressed.
I have recruited a Samsung subsubsystem maintainer (Krzysztof) to deal
with the onset of Samsung patches. It works great.
Apart from that it is a boring round, just incremental updates and
fixes all over the place, no serious core changes or anything exciting
like that. The most pleasing to see is Julia Cartwrights work to audit
the irqchip-providing drivers for realtime locking compliance. It's
one of those "I should really get around to looking into that" things
that have been on my TODO list since forever.
Summary:
Core changes:
- add bi-directional and output-enable pin configurations to the
generic bindings and generic pin controlling core.
New drivers or subdrivers:
- Armada 37xx SoC pin controller and GPIO support.
- Axis ARTPEC-6 SoC pin controller support.
- AllWinner A64 R_PIO controller support, and opening up the
AllWinner sunxi driver for ARM64 use.
- Rockchip RK3328 support.
- Renesas R-Car H3 ES2.0 support.
- STM32F469 support in the STM32 driver.
- Aspeed G4 and G5 pin controller support.
Improvements:
- a whole slew of realtime improvements to drivers implementing
irqchips: BCM, AMD, SiRF, sunxi, rockchip.
- switch meson driver to get the GPIO ranges from the device tree.
- input schmitt trigger support on the Rockchip driver.
- enable the sunxi (AllWinner) driver to also be used on ARM64
silicon.
- name the Qualcomm QDF2xxx GPIO lines.
- support GMMR GPIO regions on the Intel Cherryview. This fixes a
serialization problem on these platforms.
- pad retention support for the Samsung Exynos 5433.
- handle suspend-to-ram in the AT91-pio4 driver.
- pin configuration support in the Aspeed driver.
Cleanups:
- the final name of Rockchip RK1108 was RV1108 so rename the driver
and variables to stay consistent"
* tag 'pinctrl-v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (80 commits)
pinctrl: mediatek: Add missing pinctrl bindings for mt7623
pinctrl: artpec6: Fix return value check in artpec6_pmx_probe()
pinctrl: artpec6: Remove .owner field for driver
pinctrl: tegra: xusb: Silence sparse warnings
ARM: at91/at91-pinctrl documentation: fix spelling mistake: "contoller" -> "controller"
pinctrl: make artpec6 explicitly non-modular
pinctrl: aspeed: g5: Add pinconf support
pinctrl: aspeed: g4: Add pinconf support
pinctrl: aspeed: Add core pinconf support
pinctrl: aspeed: Document pinconf in devicetree bindings
pinctrl: Add st,stm32f469-pinctrl compatible to stm32-pinctrl
pinctrl: stm32: Add STM32F469 MCU support
Documentation: dt: Remove ngpios from stm32-pinctrl binding
pinctrl: stm32: replace device_initcall() with arch_initcall()
pinctrl: stm32: add possibility to use gpio-ranges to declare bank range
pinctrl: armada-37xx: Add gpio support
pinctrl: armada-37xx: Add pin controller support for Armada 37xx
pinctrl: dt-bindings: Add documentation for Armada 37xx pin controllers
pinctrl: core: Make pinctrl_init_controller() static
pinctrl: generic: Add bi-directional and output-enable
...
In case of error, the function pinctrl_register() returns
ERR_PTR() not NULL. The NULL test in the return value check
should be replaced with IS_ERR().
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Remove .owner field if calls are used which set it automatically.
Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Commit 53d2a715c2 ("phy: Add Tegra XUSB pad controller support") added
a new driver for the XUSB pad controller that implements a more flexible
devicetree binding. In order to preserve backwards compatibility the old
driver can be probed if the obsolete bindings are detected.
In order to hide the legacy code, these prototypes were defined in a
header private to the new driver. This has the disadvantage of making
the sparse code checker complain about the missing declarations when
compiling the old driver and suggesting to make the functions static.
Avoid these sparse warnings by adding local prototype declarations into
the compatibility driver.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The Kconfig currently controlling compilation of this code is:
drivers/pinctrl/Kconfig:config PINCTRL_ARTPEC6
drivers/pinctrl/Kconfig: bool "Axis ARTPEC-6 pin controller driver"
...meaning that it currently is not being built as a module by anyone.
Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.
Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
We also delete the MODULE_LICENSE tag etc. since all that information
is already contained at the top of the file in the comments.
Cc: Lars Persson <lars.persson@axis.com>
Cc: Niklas Cassel <niklas.cassel@axis.com>
Cc: linux-arm-kernel@axis.com
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Testing for pinctrl-aspeed-g5 was performed on an AST2500EVB system,
using the strategy outlined in the commit message for the change to the
Aspeed pinctrl core.
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Testing for pinctrl-aspeed-g4 was performed on an OpenPOWER Palmetto
system, using the strategy outlined in the commit message for the
change to the Aspeed pinctrl core.
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Several pinconf parameters have a fairly straight-forward mapping onto
the Aspeed pin controller. These include management of pull-down bias,
drive-strength, and some debounce configuration.
Pin biasing largely is managed on a per-GPIO-bank basis, aside from the
ADC and RMII/RGMII pins. As the bias configuration for each pin in a
bank maps onto a single per-bank bit, configuration tables will be
introduced to describe the ranges of pins and the supported pinconf
parameter. The use of tables also helps with the sparse support of
pinconf properties, and the fact that not all GPIO banks support
biasing or drive-strength configuration.
Further, as the pin controller uses a consistent approach for bias and
drive strength configuration at the register level, a second table is
defined for looking up the the bit-state required to enable or query the
provided configuration.
Testing for pinctrl-aspeed-g4 was performed on an OpenPOWER Palmetto
system, and pinctrl-aspeed-g5 on an AST2500EVB as well as under QEMU.
The test method was to set the appropriate bits via devmem and verify
the result through the controller's pinconf-pins debugfs file. This
simultaneously validates the get() path and half of the set() path. The
remainder of the set() path was validated by configuring a handful of
pins via the devicetree with the supported pinconf properties and
verifying the appropriate registers were touched.
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch which adds STM32F469 pinctrl and GPIO support, relies on the
generic STM32 pinctrl driver.
Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Pinctrl has to be registered earlier. Mainly to register bank irqdomain
earlier as other devices could use interrupts from those irqdomain.
Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Use device tree entries to declare gpio range. It will allow to use
no contiguous gpio bank and holes inside a bank.
Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
GPIO management is pretty simple and is part of the same IP than the pin
controller for the Armada 37xx SoCs. This patch adds the GPIO support to
the pinctrl-armada-37xx.c file, it also allows sharing common functions
between the gpiolib and the pinctrl drivers.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The Armada 37xx SoC come with 2 pin controllers: one on the south
bridge (managing 28 pins) and one on the north bridge (managing 36 pins).
At the hardware level the controller configure the pins by group and not
pin by pin. This constraint is reflected in the design of the driver:
only the group related functions are implemented.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
pinctrl_init_controller() is not used outside core.c, thus make it
static and prevent compiler to warn.
drivers/pinctrl/core.c:1943:21: warning: no previous prototype for ‘pinctrl_init_controller’ [-Wmissing-prototypes]
struct pinctrl_dev *pinctrl_init_controller(struct pinctrl_desc *pctldesc,
^~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add bi-directional and output-enable pin configuration properties.
bi-directional allows to specify when a pin shall operate in input and
output mode at the same time. This is particularly useful in platforms
where input and output buffers have to be manually enabled.
output-enable is just syntactic sugar to specify that a pin shall
operate in output mode, ignoring the provided argument.
This pairs with input-enable pin configuration option.
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
After commit 47c950d102 ("pinctrl: cherryview: Do not add all
southwest and north GPIOs to IRQ domain") the driver does not add all
GPIOs to the irqdomain. The reason for that is that those GPIOs cannot
generate IRQs at all, only GPEs (General Purpose Events). This causes
Linux virtual IRQ numbering to change.
However, it seems some CYAN Chromebooks, including Acer Chromebook
hardcodes these Linux IRQ numbers in the ACPI tables of the machine.
Since the numbering is different now, the IRQ meant for keyboard does
not match the Linux virtual IRQ number anymore making the keyboard
non-functional.
Work this around by adding special quirk just for these machines where
we add back all GPIOs to the irqdomain. Rest of the Cherryview/Braswell
based machines will not be affected by the change.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=194945
Fixes: 47c950d102 ("pinctrl: cherryview: Do not add all southwest and north GPIOs to IRQ domain")
Reported-by: Adam S Levy <theadamlevy@gmail.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Three video input signals suffered from a search/replace failure in
some copied code.
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
1. Add support for pad retention control through pinctrl drivers which
moves us forward to better runtime PM of pinctrl, clocks, power domains
and other devices.
2. Fix GPIO hogs by registering pinctrl before registering gpiolib.
3. Use devm-like interface.
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Merge tag 'samsung-pinctrl-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/samsung into devel
Samsung pinctrl drivers update for v4.12:
1. Add support for pad retention control through pinctrl drivers which
moves us forward to better runtime PM of pinctrl, clocks, power domains
and other devices.
2. Fix GPIO hogs by registering pinctrl before registering gpiolib.
3. Use devm-like interface.
The commit 1259feddd0f8("pinctrl: samsung: Fix the width of
PINCFG_TYPE_DRV bitfields for Exynos5433") already fixed
the different width of PINCFG_TYPE_DRV from previous Exynos SoC.
However wrong merge conflict resolution was chosen in commit
7f36f5d11c ("Merge tag 'v4.10-rc6' into devel") effectively dropping
the changes for PINCFG_TYPE_DRV. Re-do them here.
The macro EXYNOS_PIN_BANK_EINTW is no longer used so remove it.
Fixes: 7f36f5d11c ("Merge tag 'v4.10-rc6' into devel")
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
