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Commit 26cd2a44 authored by Jingoo Han's avatar Jingoo Han Committed by Linus Torvalds
Browse files

backlight: lms501kf03: convert lms501kf03 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: default avatarJingoo Han <jg1.han@samsung.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent eba3bfb4

drivers/video/backlight/lms501kf03.c

+10 −12
Original line number Diff line number Diff line
@@ -387,13 +387,12 @@ static int lms501kf03_remove(struct spi_device *spi) 
	return 0;

}



#if defined(CONFIG_PM)



static int lms501kf03_suspend(struct spi_device *spi, pm_message_t mesg)

#ifdef CONFIG_PM_SLEEP

static int lms501kf03_suspend(struct device *dev)

{

	struct lms501kf03 *lcd = spi_get_drvdata(spi);

	struct lms501kf03 *lcd = dev_get_drvdata(dev);



	dev_dbg(&spi->dev, "lcd->power = %d\n", lcd->power);

	dev_dbg(dev, "lcd->power = %d\n", lcd->power);



	/*

	 * when lcd panel is suspend, lcd panel becomes off
@@ -402,19 +401,19 @@ static int lms501kf03_suspend(struct spi_device *spi, pm_message_t mesg) 
	return lms501kf03_power(lcd, FB_BLANK_POWERDOWN);

}



static int lms501kf03_resume(struct spi_device *spi)

static int lms501kf03_resume(struct device *dev)

{

	struct lms501kf03 *lcd = spi_get_drvdata(spi);

	struct lms501kf03 *lcd = dev_get_drvdata(dev);



	lcd->power = FB_BLANK_POWERDOWN;



	return lms501kf03_power(lcd, FB_BLANK_UNBLANK);

}

#else

#define lms501kf03_suspend	NULL

#define lms501kf03_resume	NULL

#endif



static SIMPLE_DEV_PM_OPS(lms501kf03_pm_ops, lms501kf03_suspend,

			lms501kf03_resume);



static void lms501kf03_shutdown(struct spi_device *spi)

{

	struct lms501kf03 *lcd = spi_get_drvdata(spi);
@@ -426,12 +425,11 @@ static struct spi_driver lms501kf03_driver = { 
	.driver = {

		.name	= "lms501kf03",

		.owner	= THIS_MODULE,

		.pm	= &lms501kf03_pm_ops,

	},

	.probe		= lms501kf03_probe,

	.remove		= lms501kf03_remove,

	.shutdown	= lms501kf03_shutdown,

	.suspend	= lms501kf03_suspend,

	.resume		= lms501kf03_resume,

};



module_spi_driver(lms501kf03_driver);