Uwe Kleine-König 62bae56ce7 pwm: stm32: Always do lazy disabling ... [ Upstream commit 7346e7a058 ] When the state changes from enabled to disabled, polarity, duty_cycle and period are not configured in hardware and TIM_CCER_CCxE is just cleared. However if the state changes from one disabled state to another, all parameters are written to hardware because the early exit from stm32_pwm_apply() is only taken if the pwm is currently enabled. This yields surprises like: Applying { .period = 1, .duty_cycle = 0, .enabled = false } succeeds if the pwm is initially on, but fails if it's already off because 1 is a too small period. Update the check for lazy disable to always exit early if the target state is disabled, no matter what is currently configured. Fixes: 7edf736920 ("pwm: Add driver for STM32 plaftorm") Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Link: https://lore.kernel.org/r/20240703110010.672654-2-u.kleine-koenig@baylibre.com Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-08-19 05:44:51 +02:00
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core.c
Kconfig
Makefile
pwm-ab8500.c
pwm-atmel-hlcdc.c	pwm: atmel-hlcdc: Fix clock imbalance related to suspend support	2024-03-26 18:21:18 -04:00
pwm-atmel-tcb.c	pwm: atmel-tcb: Fix resource freeing in error path and remove	2023-09-19 12:22:57 +02:00
pwm-atmel.c
pwm-bcm2835.c
pwm-bcm-iproc.c
pwm-bcm-kona.c
pwm-berlin.c
pwm-brcmstb.c	pwm: brcmstb: Utilize appropriate clock APIs in suspend/resume	2023-11-20 11:08:28 +01:00
pwm-clps711x.c
pwm-crc.c
pwm-cros-ec.c
pwm-dwc.c
pwm-ep93xx.c
pwm-fsl-ftm.c
pwm-hibvt.c
pwm-img.c
pwm-imx1.c
pwm-imx27.c
pwm-imx-tpm.c
pwm-intel-lgm.c
pwm-iqs620a.c
pwm-jz4740.c	pwm: jz4740: Don't use dev_err_probe() in .request()	2024-01-25 14:52:48 -08:00
pwm-keembay.c
pwm-lp3943.c
pwm-lpc18xx-sct.c
pwm-lpc32xx.c	pwm: lpc32xx: Remove handling of PWM channels	2023-09-19 12:22:58 +02:00
pwm-lpss-pci.c
pwm-lpss-platform.c
pwm-lpss.c
pwm-lpss.h
pwm-mediatek.c
pwm-meson.c
pwm-mtk-disp.c
pwm-mxs.c
pwm-ntxec.c
pwm-omap-dmtimer.c
pwm-pca9685.c
pwm-pxa.c
pwm-raspberrypi-poe.c
pwm-rcar.c
pwm-renesas-tpu.c
pwm-rockchip.c
pwm-samsung.c
pwm-sifive.c
pwm-sl28cpld.c
pwm-spear.c
pwm-sprd.c
pwm-sti.c	pwm: sti: Simplify probe function using devm functions	2024-06-16 13:39:23 +02:00
pwm-stm32-lp.c
pwm-stm32.c	pwm: stm32: Always do lazy disabling	2024-08-19 05:44:51 +02:00
pwm-stmpe.c
pwm-sun4i.c
pwm-tegra.c
pwm-tiecap.c
pwm-tiehrpwm.c
pwm-twl-led.c
pwm-twl.c
pwm-visconti.c
pwm-vt8500.c
sysfs.c