The patch titled
Subject: drivers/video/backlight/ltv350qv.c: use usleep_range() instead of msleep() for small sleeps
has been added to the -mm tree. Its filename is
drivers-video-backlight-ltv350qvc-use-usleep_range-instead-of-msleep-for-small-sleeps.patch
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From: Jingoo Han <jg1.han@xxxxxxxxxxx>
Subject: drivers/video/backlight/ltv350qv.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@xxxxxxxxxxx>
Cc: Haavard Skinnemoen <hskinnemoen@xxxxxxxxx>
Cc: Richard Purdie <rpurdie@xxxxxxxxx>
Cc: Sachin Kamat <sachin.kamat@xxxxxxxxxx>
Cc: Mark Brown <broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/video/backlight/ltv350qv.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff -puN drivers/video/backlight/ltv350qv.c~drivers-video-backlight-ltv350qvc-use-usleep_range-instead-of-msleep-for-small-sleeps drivers/video/backlight/ltv350qv.c
--- a/drivers/video/backlight/ltv350qv.c~drivers-video-backlight-ltv350qvc-use-usleep_range-instead-of-msleep-for-small-sleeps
+++ a/drivers/video/backlight/ltv350qv.c
@@ -75,7 +75,7 @@ static int ltv350qv_power_on(struct ltv3
/* Power On Reset Display off State */
if (ltv350qv_write_reg(lcd, LTV_PWRCTL1, 0x0000))
goto err;
- msleep(15);
+ usleep_range(15000, 16000);
/* Power Setting Function 1 */
if (ltv350qv_write_reg(lcd, LTV_PWRCTL1, LTV_VCOM_DISABLE))
@@ -153,7 +153,7 @@ err_settings:
err_power2:
err_power1:
ltv350qv_write_reg(lcd, LTV_PWRCTL2, 0x0000);
- msleep(1);
+ usleep_range(1000, 1100);
err:
ltv350qv_write_reg(lcd, LTV_PWRCTL1, LTV_VCOM_DISABLE);
return -EIO;
@@ -175,7 +175,7 @@ static int ltv350qv_power_off(struct ltv
ret |= ltv350qv_write_reg(lcd, LTV_PWRCTL2, 0x0000);
/* Wait at least 1 ms */
- msleep(1);
+ usleep_range(1000, 1100);
/* Power down setting 2 */
ret |= ltv350qv_write_reg(lcd, LTV_PWRCTL1, LTV_VCOM_DISABLE);
_
Patches currently in -mm which might be from jg1.han@xxxxxxxxxxx are
linux-next.patch
drivers-video-backlight-da9052_blc-use-usleep_range-instead-of-msleep-for-small-sleeps.patch
drivers-video-backlight-ltv350qvc-use-usleep_range-instead-of-msleep-for-small-sleeps.patch
drivers-video-backlight-kb3886_blc-use-usleep_range-instead-of-msleep-for-small-sleeps.patch
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