From: Jingoo Han <jg1.han@samsung.com>
Date: Fri, 5 Oct 2012 00:12:42 +0000 (-0700)
Subject: drivers/video/backlight/da9052_bl.c: use usleep_range() instead of msleep() for small... 
X-Git-Tag: archive/raspbian/4.9.13-1+rpi1~10^2~10231^2~130
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/success/%22http:/www.example.com/cgi/success?a=commitdiff_plain;h=5333e254ab3fd3720b172091669f537763bce23d;p=linux-4.9.git

drivers/video/backlight/da9052_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: Jingoo Han <jg1.han@samsung.com>
Cc: Ashish Jangam <ashish.jangam@kpitcummins.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/video/backlight/da9052_bl.c b/drivers/video/backlight/da9052_bl.c
index b628d68f5162..10485c927ac6 100644
--- a/drivers/video/backlight/da9052_bl.c
+++ b/drivers/video/backlight/da9052_bl.c
@@ -72,7 +72,7 @@ static int da9052_adjust_wled_brightness(struct da9052_bl *wleds)
 	if (ret < 0)
 		return ret;
 
-	msleep(10);
+	usleep_range(10000, 11000);
 
 	if (wleds->brightness) {
 		ret = da9052_reg_write(wleds->da9052, wled_bank[wleds->led_reg],