linux-kernel - [PATCH] backlight: da903x_bl: switch to using SIMPLE_DEV_PM

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Date:	Tue, 12 Mar 2013 14:48:16 +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] backlight: da903x_bl: switch to using SIMPLE_DEV_PM_OPS

This reduces #ifdefs in the code. Also, CONFIG_PM_SLEEP is used
to avoid warnings of unused functions if CONFIG_PM_SLEEP is not
defined.

Signed-off-by: Jingoo Han <jg1.han@...sung.com>
---
 drivers/video/backlight/da903x_bl.c |   12 ++++--------
 1 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/video/backlight/da903x_bl.c b/drivers/video/backlight/da903x_bl.c
index 8179cef..c625f6d 100644
--- a/drivers/video/backlight/da903x_bl.c
+++ b/drivers/video/backlight/da903x_bl.c
@@ -161,7 +161,7 @@ static int da903x_backlight_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int da903x_backlight_suspend(struct device *dev)
 {
 	struct backlight_device *bl = dev_get_drvdata(dev);
@@ -176,20 +176,16 @@ static int da903x_backlight_resume(struct device *dev)
 	backlight_update_status(bl);
 	return 0;
 }
-
-static const struct dev_pm_ops da903x_backlight_pm_ops = {
-	.suspend	= da903x_backlight_suspend,
-	.resume		= da903x_backlight_resume,
-};
 #endif
 
+static SIMPLE_DEV_PM_OPS(da903x_backlight_pm_ops, da903x_backlight_suspend,
+			da903x_backlight_resume);
+
 static struct platform_driver da903x_backlight_driver = {
 	.driver		= {
 		.name	= "da903x-backlight",
 		.owner	= THIS_MODULE,
-#ifdef CONFIG_PM
 		.pm	= &da903x_backlight_pm_ops,
-#endif
 	},
 	.probe		= da903x_backlight_probe,
 	.remove		= da903x_backlight_remove,
-- 
1.7.2.5


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