linux-kernel - [PATCH 08/14] backlight: ep93xx: convert ep93xx to dev_pm

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 12 Mar 2013 14:51:42 +0900
From:	Jingoo Han <jg1.han@...sung.com>
To:	'Andrew Morton' <akpm@...ux-foundation.org>
Cc:	'LKML' <linux-kernel@...r.kernel.org>,
	'Richard Purdie' <rpurdie@...ys.net>,
	'Jingoo Han' <jg1.han@...sung.com>
Subject: [PATCH 08/14] backlight: ep93xx: convert ep93xx to dev_pm_ops

Instead of using legacy suspend/resume methods, using newer dev_pm_ops
structure allows better control over power management.

Signed-off-by: Jingoo Han <jg1.han@...sung.com>
---
 drivers/video/backlight/ep93xx_bl.c |   18 ++++++++----------
 1 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/drivers/video/backlight/ep93xx_bl.c b/drivers/video/backlight/ep93xx_bl.c
index ef3e21e..734b7fe 100644
--- a/drivers/video/backlight/ep93xx_bl.c
+++ b/drivers/video/backlight/ep93xx_bl.c
@@ -115,35 +115,33 @@ static int ep93xxbl_remove(struct platform_device *dev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
-static int ep93xxbl_suspend(struct platform_device *dev, pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int ep93xxbl_suspend(struct device *dev)
 {
-	struct backlight_device *bl = platform_get_drvdata(dev);
+	struct backlight_device *bl = dev_get_drvdata(dev);
 
 	return ep93xxbl_set(bl, 0);
 }
 
-static int ep93xxbl_resume(struct platform_device *dev)
+static int ep93xxbl_resume(struct device *dev)
 {
-	struct backlight_device *bl = platform_get_drvdata(dev);
+	struct backlight_device *bl = dev_get_drvdata(dev);
 
 	backlight_update_status(bl);
 	return 0;
 }
-#else
-#define ep93xxbl_suspend	NULL
-#define ep93xxbl_resume		NULL
 #endif
 
+static SIMPLE_DEV_PM_OPS(ep93xxbl_pm_ops, ep93xxbl_suspend, ep93xxbl_resume);
+
 static struct platform_driver ep93xxbl_driver = {
 	.driver		= {
 		.name	= "ep93xx-bl",
 		.owner	= THIS_MODULE,
+		.pm	= &ep93xxbl_pm_ops,
 	},
 	.probe		= ep93xxbl_probe,
 	.remove		= ep93xxbl_remove,
-	.suspend	= ep93xxbl_suspend,
-	.resume		= ep93xxbl_resume,
 };
 
 module_platform_driver(ep93xxbl_driver);
-- 
1.7.2.5


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/