redonkable/alistair23-linux
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alistair23-linux/drivers/clk
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Martin Blumenstingl 0dad1ec65b clk: meson: meson8b: mark the CPU clock as CLK_IS_CRITICAL 
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
2018-11-23 15:11:57 +01:00
..
actions clk: actions: Add Actions Semi S900 SoC Reset Management Unit support 2018-10-16 14:41:53 -07:00
at91 Merge branches 'clk-actions-reset', 'clk-imx7-init-critical', 'clk-mmp2-ids' and 'clk-at91-pmc-rework' into clk-next 2018-10-18 15:43:48 -07:00
axis
axs10x clk: Convert to using %pOFn instead of device_node.name 2018-08-30 09:50:20 -07:00
bcm clk: Convert to using %pOFn instead of device_node.name 2018-08-30 09:50:20 -07:00
berlin
davinci clk: davinci: kill davinci_clk_reset_assert/deassert() 2018-10-02 08:54:14 -07:00
h8300
hisilicon Merge branches 'clk-samsung', 'clk-hisi3670' and 'clk-at91-div-0' into clk-next 2018-10-18 15:41:36 -07:00
imgtec
imx Merge branches 'clk-imx6-mmdc', 'clk-qcom-krait', 'clk-rockchip' and 'clk-smp2s11-match' into clk-next 2018-10-18 15:44:01 -07:00
ingenic clk: Add Ingenic jz4725b CGU driver 2018-10-16 15:19:48 -07:00
keystone Merge branch 'clk-k3-tisci' into clk-next 2018-10-18 15:40:10 -07:00
loongson1
mediatek clk: mediatek: remove unused array audio_parents 2018-08-30 18:29:36 -07:00
meson clk: meson: meson8b: mark the CPU clock as CLK_IS_CRITICAL 2018-11-23 15:11:57 +01:00
microchip
mmp clk: mmp2: fix the clock id for sdh2_clk and sdh3_clk 2018-10-17 09:02:31 -07:00
mvebu This time it looks like a quieter release cycle in the clk tree. I guess that's 2018-10-31 11:08:30 -07:00
mxs
nxp
pistachio
pxa clk: pxa: export 32kHz PLL 2018-07-06 13:52:57 -07:00
qcom Merge branches 'clk-fixed-rate-remove' and 'clk-qcom-cleanup' into clk-next 2018-10-18 15:44:13 -07:00
renesas Merge branch 'clk-renesas' into clk-next 2018-10-18 15:38:51 -07:00
rockchip clk: rockchip: Fix static checker warning in rockchip_ddrclk_get_parent call 2018-10-17 15:12:51 +02:00
samsung clk: samsung: Use clk_hw API for calling clk framework from clk notifiers 2018-10-05 13:36:39 +02:00
sirf
socfpga clk: socfpga: stratix10: fix the sdmmc_free_clk mux 2018-07-06 11:08:02 -07:00
spear
sprd
st clk: Convert to using %pOFn instead of device_node.name 2018-08-30 09:50:20 -07:00
sunxi clk: Convert to using %pOFn instead of device_node.name 2018-08-30 09:50:20 -07:00
sunxi-ng This time it looks like a quieter release cycle in the clk tree. I guess that's 2018-10-31 11:08:30 -07:00
tegra clk: tegra210: Include size.h for compilation ease 2018-10-16 15:33:01 -07:00
ti This time it looks like a quieter release cycle in the clk tree. I guess that's 2018-10-31 11:08:30 -07:00
uniphier clk: uniphier: add clock frequency support for SPI 2018-07-25 16:26:18 -07:00
ux500
versatile
x86 clk: x86: Stop marking clocks as CLK_IS_CRITICAL 2018-09-17 18:47:58 -07:00
zte
zynq clk: Convert to using %pOFn instead of device_node.name 2018-08-30 09:50:20 -07:00
zynqmp drivers: clk: Add ZynqMP clock driver 2018-10-09 13:29:19 +02:00
clk-asm9260.c clk: Convert to using %pOFn instead of device_node.name 2018-08-30 09:50:20 -07:00
clk-aspeed.c The new and exciting feature this time around is in the clk core. 2018-08-15 21:41:21 -07:00
clk-axi-clkgen.c
clk-axm5516.c
clk-bulk.c clk: add new APIs to operate on all available clocks 2018-10-16 15:42:48 -07:00
clk-cdce706.c
clk-cdce925.c Merge branches 'clk-dt-name', 'clk-ti-of-node' and 'clk-sa' into clk-next 2018-10-18 15:33:52 -07:00
clk-clps711x.c
clk-composite.c
clk-conf.c
clk-cs2000-cp.c clk: cs2000-cp: convert to SPDX identifiers 2018-08-02 13:55:00 -07:00
clk-devres.c clk: add managed version of clk_bulk_get_all 2018-10-16 15:42:49 -07:00
clk-divider.c
clk-efm32gg.c
clk-fixed-factor.c clk: Convert to using %pOFn instead of device_node.name 2018-08-30 09:50:20 -07:00
clk-fixed-rate.c clk: fixed-rate: fix of_node_get-put imbalance 2018-10-18 13:40:15 -07:00
clk-fractional-divider.c
clk-gate.c
clk-gemini.c
clk-gpio.c clk: Convert to using %pOFn instead of device_node.name 2018-08-30 09:50:20 -07:00
clk-hi655x.c
clk-highbank.c
clk-hsdk-pll.c clk: Convert to using %pOFn instead of device_node.name 2018-08-30 09:50:20 -07:00
clk-max9485.c clk: Add driver for MAX9485 2018-07-06 13:44:06 -07:00
clk-max77686.c clk: max77686: Add SPDX license identifiers 2018-08-27 14:16:51 -07:00
clk-moxart.c
clk-multiplier.c
clk-mux.c
clk-nomadik.c clk: Convert to using %pOFn instead of device_node.name 2018-08-30 09:50:20 -07:00
clk-npcm7xx.c This time it looks like a quieter release cycle in the clk tree. I guess that's 2018-10-31 11:08:30 -07:00
clk-nspire.c
clk-oxnas.c
clk-palmas.c clk: Convert to using %pOFn instead of device_node.name 2018-08-30 09:50:20 -07:00
clk-pwm.c
clk-qoriq.c clk: Convert to using %pOFn instead of device_node.name 2018-08-30 09:50:20 -07:00
clk-rk808.c
clk-s2mps11.c Merge branches 'clk-imx6-mmdc', 'clk-qcom-krait', 'clk-rockchip' and 'clk-smp2s11-match' into clk-next 2018-10-18 15:44:01 -07:00
clk-scmi.c clk: Convert to using %pOFn instead of device_node.name 2018-08-30 09:50:20 -07:00
clk-scpi.c clk: Convert to using %pOFn instead of device_node.name 2018-08-30 09:50:20 -07:00
clk-si514.c
clk-si544.c
clk-si570.c
clk-si5351.c clk: Convert to using %pOFn instead of device_node.name 2018-08-30 09:50:20 -07:00
clk-si5351.h
clk-stm32f4.c clk: Convert to using %pOFn instead of device_node.name 2018-08-30 09:50:20 -07:00
clk-stm32h7.c clk: Convert to using %pOFn instead of device_node.name 2018-08-30 09:50:20 -07:00
clk-stm32mp1.c clk: Convert to using %pOFn instead of device_node.name 2018-08-30 09:50:20 -07:00
clk-tango4.c clk: Convert to using %pOFn instead of device_node.name 2018-08-30 09:50:20 -07:00
clk-twl6040.c
clk-u300.c
clk-versaclock5.c
clk-vt8500.c
clk-wm831x.c
clk-xgene.c
clk.c clk: Clean up suspend/resume coding style 2018-10-11 09:28:13 -07:00
clk.h
clkdev.c ARM: 8778/1: clkdev: don't call __of_clk_get_by_name() unnecessarily from clk_get() 2018-08-13 16:27:52 +01:00
Kconfig This time it looks like a quieter release cycle in the clk tree. I guess that's 2018-10-31 11:08:30 -07:00
Makefile This time it looks like a quieter release cycle in the clk tree. I guess that's 2018-10-31 11:08:30 -07:00