linux-stable/drivers/pwm
AngeloGioacchino Del Regno 4a9117b117 pwm: mtk-disp: Disable shadow registers before setting backlight values
[ Upstream commit 36dd7f530a ]

If shadow registers usage is not desired, disable that before performing
any write to CON0/1 registers in the .apply() callback, otherwise we may
lose clkdiv or period/width updates.

Fixes: cd4b45ac44 ("pwm: Add MediaTek MT2701 display PWM driver support")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Tested-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: Alexandre Mergnat <amergnat@baylibre.com>
Tested-by: Alexandre Mergnat <amergnat@baylibre.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:13:20 +02:00
..
core.c
Kconfig
Makefile
pwm-ab8500.c
pwm-atmel-hlcdc.c
pwm-atmel-tcb.c
pwm-atmel.c
pwm-bcm-iproc.c
pwm-bcm-kona.c
pwm-bcm2835.c
pwm-berlin.c
pwm-brcmstb.c
pwm-clps711x.c
pwm-crc.c
pwm-cros-ec.c pwm: cros-ec: Explicitly set .polarity in .get_state() 2023-04-20 12:04:38 +02:00
pwm-ep93xx.c
pwm-fsl-ftm.c
pwm-hibvt.c
pwm-img.c
pwm-imx.c
pwm-jz4740.c
pwm-lp3943.c
pwm-lpc18xx-sct.c
pwm-lpc32xx.c
pwm-lpss-pci.c
pwm-lpss-platform.c
pwm-lpss.c
pwm-lpss.h
pwm-mediatek.c
pwm-meson.c pwm: meson: Fix axg ao mux parents 2023-05-17 11:13:07 +02:00
pwm-mtk-disp.c pwm: mtk-disp: Disable shadow registers before setting backlight values 2023-05-17 11:13:20 +02:00
pwm-mxs.c
pwm-omap-dmtimer.c
pwm-pca9685.c
pwm-puv3.c
pwm-pxa.c
pwm-rcar.c
pwm-renesas-tpu.c
pwm-rockchip.c
pwm-samsung.c
pwm-spear.c
pwm-sti.c
pwm-stm32-lp.c pwm: stm32-lp: fix the check on arr and cmp registers update 2023-03-11 16:31:56 +01:00
pwm-stm32.c
pwm-stmpe.c
pwm-sun4i.c
pwm-tegra.c
pwm-tiecap.c
pwm-tiehrpwm.c
pwm-tipwmss.c
pwm-twl-led.c
pwm-twl.c
pwm-vt8500.c
pwm-zx.c
sysfs.c