Linus Walleij 063c3d980d backlight: ktd253: Stabilize backlight ... [ Upstream commit daa37361518bf2d1f591bbdaa7c68b2a43d7af48 ] Remove interrupt disablement during backlight setting. It is way to dangerous and makes platforms instable by having it miss vblank IRQs leading to the graphics derailing. The code is using ndelay() which is not available on platforms such as ARM and will result in 32 * udelay(1) which is substantial. Add some code to detect if an interrupt occurs during the tight loop and in that case just redo it from the top. Fixes: 5317f37e48 ("backlight: Add Kinetic KTD253 backlight driver") Cc: Stephan Gerhold <stephan@gerhold.net> Reported-by: newbyte@disroot.org Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2021-09-22 12:28:02 +02:00
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backlight	backlight: ktd253: Stabilize backlight	2021-09-22 12:28:02 +02:00
console	vt: Fix character height handling with VT_RESIZEX	2021-05-26 12:06:56 +02:00
fbdev	video: fbdev: riva: Error out if 'pixclock' equals zero	2021-09-18 13:40:22 +02:00
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