mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
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



  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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='000a01cdde7b$f4530e80$dcf92b80$%han@samsung.com' \
    --to=jg1.han@samsung.com \
    --cc=akpm@linux-foundation.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=rpurdie@rpsys.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox

Powered by JetHome