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linux-sg2042/drivers/pwm
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Fabrice Gasnier 9a0af7cb1c pwm: stm32-lp: fix the check on arr and cmp registers update 
[ Upstream commit 3066bc2d58 ]

The ARR (auto reload register) and CMP (compare) registers are
successively written. The status bits to check the update of these
registers are polled together with regmap_read_poll_timeout().
The condition to end the loop may become true, even if one of the
register isn't correctly updated.
So ensure both status bits are set before clearing them.

Fixes: e70a540b4e ("pwm: Add STM32 LPTimer PWM driver")
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2023-03-11 13:55:17 +01:00
..
Kconfig pwm: Add clock based PWM output driver 2022-07-29 13:41:18 +02:00
Makefile pwm: Add clock based PWM output driver 2022-07-29 13:41:18 +02:00
core.c pwm: Changes for v6.1-rc1 2022-10-07 11:32:10 -07:00
pwm-ab8500.c pwm: ab8500: Simplify using devm_pwmchip_add() 2021-09-02 21:38:40 +02:00
pwm-atmel-hlcdc.c pwm: atmel-hlcdc: Don't check the return code of pwmchip_remove() 2021-09-02 21:38:49 +02:00
pwm-atmel-tcb.c pwm: atmel-tcb: Fix typo in comment 2022-06-22 15:33:13 +02:00
pwm-atmel.c pwm: atmel: Remove redundant initialization of variable timeout 2022-02-24 13:54:05 +01:00
pwm-bcm-iproc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_30.RULE (part 2) 2022-06-10 14:51:35 +02:00
pwm-bcm-kona.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_30.RULE (part 2) 2022-06-10 14:51:35 +02:00
pwm-bcm2835.c pwm: Simplify all drivers with explicit of_pwm_n_cells = 3 2021-05-25 18:19:15 +02:00
pwm-berlin.c pwm: berlin: Ensure configuring period and duty_cycle isn't wrongly skipped 2021-07-08 16:09:17 +02:00
pwm-brcmstb.c pwm: brcmstb: Remove useless locking 2022-02-24 14:46:24 +01:00
pwm-clk.c pwm: Add clock based PWM output driver 2022-07-29 13:41:18 +02:00
pwm-clps711x.c pwm: clps71xx: Implement .apply() callback 2022-04-22 18:52:30 +02:00
pwm-crc.c pwm: crc: Simplify using devm_pwmchip_add() 2021-06-28 13:25:04 +02:00
pwm-cros-ec.c pwm: pwm-cros-ec: Add channel type support 2022-05-20 16:40:01 +02:00
pwm-dwc.c pwm: Always allocate PWM chip base ID dynamically 2021-03-22 11:53:00 +01:00
pwm-ep93xx.c pwm: ep93xx: Simplify using devm_pwmchip_add() 2021-09-02 21:38:41 +02:00
pwm-fsl-ftm.c pwm: fsl-ftm: Simplify using devm_pwmchip_add() 2021-09-02 21:38:41 +02:00
pwm-hibvt.c pwm: hibvt: Disable the clock only after the PWM was unregistered 2021-09-02 21:38:37 +02:00
pwm-img.c pwm: img: Rename variable pointing to driver private data 2022-02-02 17:06:05 +01:00
pwm-imx-tpm.c pwm: imx-tpm: Don't check the return code of pwmchip_remove() 2021-09-02 21:38:52 +02:00
pwm-imx1.c pwm: imx1: Implement .apply callback 2022-02-02 17:05:19 +01:00
pwm-imx27.c pwm: imx27: Simplify using devm_pwmchip_add() 2021-09-02 21:38:42 +02:00
pwm-intel-lgm.c pwm: intel-lgm: Simplify using devm_pwmchip_add() 2021-09-02 21:38:42 +02:00
pwm-iqs620a.c pwm: iqs620a: Simplify using devm_pwmchip_add() 2021-09-02 21:38:43 +02:00
pwm-jz4740.c pwm: jz4740: Add support for X1000 SoC 2022-02-24 14:37:21 +01:00
pwm-keembay.c pwm: keembay: Simplify using devm_pwmchip_add() 2021-09-02 21:38:44 +02:00
pwm-lp3943.c pwm: lp3943: Implement .apply() callback 2022-04-22 18:43:09 +02:00
pwm-lpc18xx-sct.c pwm: lpc18xx: Fix period handling 2022-07-29 13:41:18 +02:00
pwm-lpc32xx.c pwm: lpc32xx: Implement .apply() callback 2022-05-20 16:29:01 +02:00
pwm-lpss-pci.c pwm: lpss: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() macros 2022-09-28 16:18:57 +02:00
pwm-lpss-platform.c pwm: lpss: Use device_get_match_data() to get device data 2022-09-28 16:18:11 +02:00
pwm-lpss.c pwm: lpss: Make use of bits.h macros for all masks 2022-09-28 16:19:43 +02:00
pwm-lpss.h pwm: lpss: Add a comment to the bypass field 2022-09-28 16:21:46 +02:00
pwm-mediatek.c pwm: mediatek: always use bus clock for PWM on MT7622 2022-12-31 13:32:51 +01:00
pwm-meson.c pwm: meson: Drop always false check from .apply() 2022-02-01 08:38:10 +01:00
pwm-mtk-disp.c pwm: mtk-disp: Fix the parameters calculated by the enabled flag of disp_pwm 2022-12-31 13:32:51 +01:00
pwm-mxs.c pwm: mxs: Simplify using devm_pwmchip_add() 2021-09-02 21:38:45 +02:00
pwm-ntxec.c pwm: ntxec: Simplify using devm_pwmchip_add() 2021-09-02 21:38:46 +02:00
pwm-omap-dmtimer.c pwm: omap-dmtimer: Don't check the return code of pwmchip_remove() 2021-09-02 21:38:52 +02:00
pwm-pca9685.c i2c: Make remove callback return void 2022-08-16 12:46:26 +02:00
pwm-pxa.c pwm: pxa: Implement .apply() callback 2022-02-02 18:03:05 +01:00
pwm-raspberrypi-poe.c pwm: raspberrypi-poe: Fix endianness in firmware struct 2022-04-22 18:50:51 +02:00
pwm-rcar.c pwm: rcar: Simplify multiplication/shift logic 2022-02-24 15:14:56 +01:00
pwm-renesas-tpu.c pwm: renesas-tpu: Improve precision of period and duty_cycle calculation 2022-05-20 16:18:40 +02:00
pwm-rockchip.c pwm: rockchip: Convert to use dev_err_probe() 2022-09-28 14:01:19 +02:00
pwm-samsung.c pwm: samsung: Implement .apply() callback 2022-05-20 15:59:34 +02:00
pwm-sifive.c pwm: sifive: Always let the first pwm_apply_state succeed 2023-03-11 13:55:17 +01:00
pwm-sl28cpld.c pwm: sl28cpld: Simplify using devm_pwmchip_add() 2021-09-02 21:38:47 +02:00
pwm-spear.c pwm: spear: Ensure configuring period and duty_cycle isn't wrongly skipped 2021-07-08 16:08:38 +02:00
pwm-sprd.c pwm: sprd: Ensure configuring period and duty_cycle isn't wrongly skipped 2021-07-08 16:08:08 +02:00
pwm-sti.c pwm: sti: Implement .apply() callback 2022-05-20 16:28:18 +02:00
pwm-stm32-lp.c pwm: stm32-lp: fix the check on arr and cmp registers update 2023-03-11 13:55:17 +01:00
pwm-stm32.c pwm: Simplify all drivers with explicit of_pwm_n_cells = 3 2021-05-25 18:19:15 +02:00
pwm-stmpe.c pwm: stmpe: Implement .apply() callback 2022-05-20 16:28:35 +02:00
pwm-sun4i.c pwm-sun4i: Calculate the delay without rounding down to jiffies 2022-04-22 17:44:48 +02:00
pwm-sunplus.c pwm: sunplus-pwm: Add Sunplus SoC SP7021 PWM Driver 2022-04-22 18:34:24 +02:00
pwm-tegra.c pwm: tegra: Fix 32 bit build 2022-12-31 13:33:12 +01:00
pwm-tiecap.c pwm: tiecap: Simplify using devm_pwmchip_add() 2021-09-02 21:38:48 +02:00
pwm-tiehrpwm.c pwm: tiehrpwm: Implement .apply() callback 2022-02-24 13:52:59 +01:00
pwm-twl-led.c pwm: twl-led: Document some limitations and link to the reference manual 2022-07-29 13:41:18 +02:00
pwm-twl.c pwm: twl: Implement .apply() callback 2021-11-17 17:12:42 +01:00
pwm-visconti.c pwm: visconti: Simplify using devm_pwmchip_add() 2021-11-05 11:51:41 +01:00
pwm-vt8500.c pwm: vt8500: Rename variable pointing to driver private data 2022-02-24 14:35:20 +01:00
pwm-xilinx.c pwm: Add support for Xilinx AXI Timer 2022-04-22 18:30:44 +02:00
sysfs.c pwm: sysfs: Replace sprintf() with sysfs_emit() 2022-09-28 17:52:02 +02:00