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android_kernel_motorola_sm6375/drivers/clk
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Filename Latest commit message Latest commit date
Maxime Ripard d85841e4b2 clk: Initialize orphan req_rate 
[ Upstream commit 5f7e2af00807f2117650e711a58b7f0e986ce1df ]

When registering a clock that doesn't have a recalc_rate implementation,
and doesn't have its parent registered yet, we initialize the clk_core
rate and 'req_rate' fields to 0.

The rate field is later updated when the parent is registered in
clk_core_reparent_orphans_nolock() using __clk_recalc_rates(), but the
'req_rate' field is never updated.

This leads to an issue in clk_set_rate_range() and clk_put(), since
those functions will call clk_set_rate() with the content of 'req_rate'
to provide drivers with the opportunity to change the rate based on the
new boundaries. In this case, we would call clk_set_rate() with a rate
of 0, effectively enforcing the minimum allowed for this clock whenever
we would call one of those two functions, even though the actual rate
might be within range.

Let's fix this by setting 'req_rate' in
clk_core_reparent_orphans_nolock() with the rate field content just
updated by the call to __clk_recalc_rates().

Fixes: 1c8e600440 ("clk: Add rate constraints to clocks")
Reported-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> # T30 Nexus7
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20220325161144.1901695-2-maxime@cerno.tech
[sboyd@kernel.org: Reword comment]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-15 14:18:21 +02:00
..
actions clk: actions: Terminate clk_div_table with sentinel element 2022-04-15 14:18:19 +02:00
analogbits treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
at91 clk: at91: check pmc node status before registering syscore ops 2021-11-17 09:48:42 +01:00
axis treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
axs10x treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
bcm clk: bcm-2835: Remove rounding up the dividers 2022-01-27 09:19:29 +01:00
berlin treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
davinci clk: davinci: Use the correct size when allocating memory 2020-09-23 12:40:38 +02:00
h8300 treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
hisilicon treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
imgtec treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
imx clk: imx7d: Remove audio_mclk_root_clk 2022-04-15 14:18:18 +02:00
ingenic clk: jz4725b: fix mmc0 clock gating 2022-03-02 11:41:00 +01:00
keystone clk: keystone: sci-clk: fix parsing assigned-clock data during probe 2020-10-29 09:57:54 +01:00
loongson1 clk: loongson1: Terminate clk_div_table with sentinel element 2022-04-15 14:18:19 +02:00
mediatek clk: mediatek: add UART0 clock support 2020-10-29 09:57:54 +01:00
meson clk: meson: gxbb: Fix the SDM_EN bit for MPLL0 on GXBB 2022-01-27 09:19:47 +01:00
microchip treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 445 2019-06-05 17:37:18 +02:00
mmp clk: mmp2: Fix the order of timer mux parents 2020-02-05 21:22:43 +00:00
mvebu clk: mvebu: ap-cpu-clk: Fix a memory leak in error handling paths 2021-11-17 09:48:41 +01:00
mxs treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159 2019-05-30 11:26:37 -07:00
nxp treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159 2019-05-30 11:26:37 -07:00
pistachio treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422 2019-06-05 17:37:15 +02:00
pxa clk: pxa: fix one of the pxa RTC clocks 2020-01-04 19:18:11 +01:00
qcom clk: qcom: gcc-msm8994: Fix gpll4 width 2022-04-15 14:18:21 +02:00
renesas clk: renesas: r8a77995: Add ZA2 clock 2021-07-19 08:53:09 +02:00
rockchip clk: rockchip: Initialize hw to error to avoid undefined behavior 2020-10-29 09:57:54 +01:00
samsung clk: exynos7: Mark aclk_fsys1_200 as critical 2021-05-19 10:08:33 +02:00
sifive clk: sifive: allocate sufficient memory for struct __prci_data 2020-06-30 15:37:01 -04:00
sirf clk: clk-atlas6: fix return value check in atlas6_clk_init() 2020-08-21 13:05:34 +02:00
socfpga clk: socfpga: arria10: Fix memory leak of socfpga_clk on error return 2021-05-11 14:04:10 +02:00
spear clk: spear: Make structure i2s_sclk_masks constant 2019-09-06 10:27:40 -07:00
sprd clk: sprd: return correct type of value for _sprd_pll_recalc_rate 2020-06-24 17:50:35 +02:00
st clk: clk-flexgen: fix clock-critical handling 2020-06-24 17:50:17 +02:00
sunxi clk: sunxi: Fix incorrect usage of round_down() 2020-06-24 17:50:08 +02:00
sunxi-ng clk: sunxi-ng: h6: Fix clock divider range on some clocks 2021-03-04 10:26:29 +01:00
tegra clk: tegra: tegra124-emc: Fix missing put_device() call in emc_ensure_emc_driver 2022-04-15 14:18:19 +02:00
ti clocksource/drivers/timer-ti-dm: Handle dra7 timer wrap errata i940 2021-06-23 14:41:31 +02:00
uniphier clk: uniphier: Fix fixed-rate initialization 2022-04-15 14:17:58 +02:00
ux500 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
versatile clk: versatile: Add of_node_put() in cm_osc_setup() 2019-08-07 15:25:25 -07:00
x86 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
zte clk: zx296718: Don't reference clk_init_data after registration 2019-08-16 10:20:15 -07:00
zynq treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 401 2019-06-05 17:37:13 +02:00
zynqmp clk: zynqmp: move zynqmp_pll_set_mode out of round_rate callback 2021-05-14 09:44:24 +02:00
clk-asm9260.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
clk-aspeed.c clk: aspeed: Move structures to header 2019-09-06 15:17:02 -07:00
clk-aspeed.h clk: aspeed: Move structures to header 2019-09-06 15:17:02 -07:00
clk-ast2600.c clk/ast2600: Fix soc revision for AHB 2021-11-26 10:47:17 +01:00
clk-axi-clkgen.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 177 2019-05-30 11:29:19 -07:00
clk-axm5516.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
clk-bd718x7.c clk: bd718x7: Support ROHM BD70528 clk block 2019-06-27 10:57:24 +01:00
clk-bulk.c clk: Make clk_bulk_get_all() return a valid "id" 2019-09-17 13:26:31 -07:00
clk-cdce706.c This round of clk driver and framework updates is heavy on the driver update 2019-07-17 10:07:48 -07:00
clk-cdce925.c clk: clk-cdce925: Add regulator support 2019-09-06 10:31:16 -07:00
clk-clps711x.c clk: clps711x: Terminate clk_div_table with sentinel element 2022-04-15 14:18:19 +02:00
clk-composite.c clk: composite: Drop unused clk.h include 2019-08-16 10:37:01 -07:00
clk-conf.c
clk-cs2000-cp.c
clk-devres.c clk: fix leak on devm_clk_bulk_get_all() unwind 2021-08-12 13:21:00 +02:00
clk-divider.c Merge branch 'clk-ti' into clk-next 2019-05-07 11:46:02 -07:00
clk-efm32gg.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
clk-fixed-factor.c Merge branch 'clk-parent-rewrite-1' into clk-next 2019-05-07 11:46:13 -07:00
clk-fixed-mmio.c clk: Remove io.h from clk-provider.h 2019-05-15 13:21:37 -07:00
clk-fixed-rate.c clk: Remove CLK_IS_BASIC clk flag 2019-04-26 10:40:49 -07:00
clk-fractional-divider.c clk: Remove io.h from clk-provider.h 2019-05-15 13:21:37 -07:00
clk-gate.c Merge branch 'clk-ti' into clk-next 2019-05-07 11:46:02 -07:00
clk-gemini.c
clk-gpio.c clk: clk-gpio: propagate rate change to parent 2020-01-04 19:17:21 +01:00
clk-hi655x.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
clk-highbank.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
clk-hsdk-pll.c clk: Remove io.h from clk-provider.h 2019-05-15 13:21:37 -07:00
clk-lochnagar.c clk: lochnagar: Don't reference clk_init_data after registration 2019-08-16 10:20:07 -07:00
clk-max9485.c
clk-max77686.c
clk-milbeaut.c clk: milbeaut: Don't reference clk_init_data after registration 2019-08-16 10:20:15 -07:00
clk-moxart.c
clk-multiplier.c clk: Remove io.h from clk-provider.h 2019-05-15 13:21:37 -07:00
clk-mux.c Merge branch 'clk-ti' into clk-next 2019-05-07 11:46:02 -07:00
clk-nomadik.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
clk-npcm7xx.c
clk-nspire.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
clk-oxnas.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
clk-palmas.c
clk-pwm.c This round of clk driver and framework updates is heavy on the driver update 2019-07-17 10:07:48 -07:00
clk-qoriq.c clk: qoriq: Fix -Wunused-const-variable 2019-08-07 14:17:49 -07:00
clk-rk808.c - Core Frameworks 2019-07-15 20:18:40 -07:00
clk-s2mps11.c clk: s2mps11: Fix a resource leak in error handling paths in the probe function 2020-12-30 11:51:29 +01:00
clk-scmi.c clk: scmi: Fix min and max rate when registering clocks with discrete rates 2020-08-19 08:15:55 +02:00
clk-scpi.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
clk-si514.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
clk-si544.c clk: clk-si544: Implement small frequency change support 2019-06-27 13:45:38 -07:00
clk-si570.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
clk-si5341.c clk: si5341: Fix clock HW provider cleanup 2022-01-27 09:19:53 +01:00
clk-si5351.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
clk-si5351.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
clk-stm32f4.c clk: stm32: Fix ltdc's clock turn off by clk_disable_unused() after system enter shell 2022-01-27 09:19:39 +01:00
clk-stm32h7.c
clk-stm32mp1.c clk: stm32mp1: Add ddrperfm clock 2019-04-29 11:13:23 -07:00
clk-tango4.c
clk-twl6040.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336 2019-06-05 17:37:07 +02:00
clk-u300.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
clk-versaclock5.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
clk-vt8500.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
clk-wm831x.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
clk-xgene.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
clk.c clk: Initialize orphan req_rate 2022-04-15 14:18:21 +02:00
clk.h clk: consoldiate the __clk_get_hw() declarations 2019-07-12 11:00:14 -07:00
clkdev.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
Kconfig clk: remove extra ---help--- tags in Kconfig 2019-09-17 10:27:57 -07:00
Makefile clk: Add support for AST2600 SoC 2019-09-06 15:22:29 -07:00