From: Jingoo Han <jg1.han@samsung.com>
To: "'Andrew Morton'" <akpm@linux-foundation.org>,
"'LKML'" <linux-kernel@vger.kernel.org>
Cc: "'Richard Purdie'" <rpurdie@rpsys.net>,
"'Jingoo Han'" <jg1.han@samsung.com>
Subject: [PATCH 2/6] backlight: s6e63m0: use sleep instead of delay
Date: Thu, 20 Dec 2012 15:33:42 +0900 [thread overview]
Message-ID: <000a01cdde7b$f4530e80$dcf92b80$%han@samsung.com> (raw)
In-Reply-To: <000901cdde7b$db4f6690$91ee33b0$%han@samsung.com>
This patch replaces mdelay with msleep to remove the busy loop
waiting.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
---
drivers/video/backlight/s6e63m0.c | 11 ++++++-----
1 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/drivers/video/backlight/s6e63m0.c b/drivers/video/backlight/s6e63m0.c
index cae140d..cff4515 100644
--- a/drivers/video/backlight/s6e63m0.c
+++ b/drivers/video/backlight/s6e63m0.c
@@ -406,8 +406,9 @@ static int s6e63m0_panel_send_sequence(struct s6e63m0 *lcd,
ret = s6e63m0_spi_write(lcd, wbuf[i], wbuf[i+1]);
if (ret)
break;
- } else
- udelay(wbuf[i+1]*1000);
+ } else {
+ msleep(wbuf[i+1]);
+ }
i += 2;
}
@@ -523,7 +524,7 @@ static int s6e63m0_power_on(struct s6e63m0 *lcd)
return -EFAULT;
} else {
pd->power_on(lcd->ld, 1);
- mdelay(pd->power_on_delay);
+ msleep(pd->power_on_delay);
}
if (!pd->reset) {
@@ -531,7 +532,7 @@ static int s6e63m0_power_on(struct s6e63m0 *lcd)
return -EFAULT;
} else {
pd->reset(lcd->ld);
- mdelay(pd->reset_delay);
+ msleep(pd->reset_delay);
}
ret = s6e63m0_ldi_init(lcd);
@@ -573,7 +574,7 @@ static int s6e63m0_power_off(struct s6e63m0 *lcd)
return -EIO;
}
- mdelay(pd->power_off_delay);
+ msleep(pd->power_off_delay);
if (!pd->power_on) {
dev_err(lcd->dev, "power_on is NULL.\n");
--
1.7.2.5
next prev parent reply other threads:[~2012-12-20 6:33 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-20 6:33 [PATCH 1/6] backlight: s6e63m0: use lowercase names of structs Jingoo Han
2012-12-20 6:33 ` Jingoo Han [this message]
2012-12-20 6:34 ` [PATCH 3/6] backlight: s6e63m0: remove unnecessary NULL deference check Jingoo Han
2012-12-20 6:35 ` [PATCH 4/6] backlight: s6e63m0: replace EFAULT with EINVAL Jingoo Han
2012-12-20 6:35 ` [PATCH 5/6] backlight: s6e63m0: remove redundant variable 'before_power' Jingoo Han
2012-12-20 6:36 ` [PATCH 6/6] backlight: s6e63m0: reorder inclusions of <linux/xxx.h> Jingoo Han
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