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Commit 7c9332d1 authored by Jingoo Han's avatar Jingoo Han Committed by Linus Torvalds
Browse files

drivers/video/backlight/kb3886_bl.c: use usleep_range() instead of msleep() for small sleeps 



Since msleep() might not sleep for the desired amount when less than 20ms,
use usleep_range().

Signed-off-by: default avatarJingoo Han <jg1.han@samsung.com>
Cc: Claudio Nieder <private@claudio.ch>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent a08e1a37

drivers/video/backlight/kb3886_bl.c

+2 −2
Original line number Diff line number Diff line
@@ -34,9 +34,9 @@ static void kb3886_bl_set_intensity(int intensity) 
	mutex_lock(&bl_mutex);

	intensity = intensity&0xff;

	outb(KB3886_ADC_DAC_PWM, KB3886_PARENT);

	msleep(10);

	usleep_range(10000, 11000);

	outb(KB3886_PWM0_WRITE, KB3886_IO);

	msleep(10);

	usleep_range(10000, 11000);

	outb(intensity, KB3886_IO);

	mutex_unlock(&bl_mutex);

}