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Commit d50d7ac0 authored by Jingoo Han's avatar Jingoo Han Committed by Linus Torvalds
Browse files

backlight: s6e63m0: convert s6e63m0 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 26cd2a44

drivers/video/backlight/s6e63m0.c

+9 −11
Original line number Diff line number Diff line
@@ -817,12 +817,12 @@ static int s6e63m0_remove(struct spi_device *spi) 
	return 0;

}



#if defined(CONFIG_PM)

static int s6e63m0_suspend(struct spi_device *spi, pm_message_t mesg)

#ifdef CONFIG_PM_SLEEP

static int s6e63m0_suspend(struct device *dev)

{

	struct s6e63m0 *lcd = spi_get_drvdata(spi);

	struct s6e63m0 *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
@@ -831,19 +831,18 @@ static int s6e63m0_suspend(struct spi_device *spi, pm_message_t mesg) 
	return s6e63m0_power(lcd, FB_BLANK_POWERDOWN);

}



static int s6e63m0_resume(struct spi_device *spi)

static int s6e63m0_resume(struct device *dev)

{

	struct s6e63m0 *lcd = spi_get_drvdata(spi);

	struct s6e63m0 *lcd = dev_get_drvdata(dev);



	lcd->power = FB_BLANK_POWERDOWN;



	return s6e63m0_power(lcd, FB_BLANK_UNBLANK);

}

#else

#define s6e63m0_suspend		NULL

#define s6e63m0_resume		NULL

#endif



static SIMPLE_DEV_PM_OPS(s6e63m0_pm_ops, s6e63m0_suspend, s6e63m0_resume);



/* Power down all displays on reboot, poweroff or halt. */

static void s6e63m0_shutdown(struct spi_device *spi)

{
@@ -856,12 +855,11 @@ static struct spi_driver s6e63m0_driver = { 
	.driver = {

		.name	= "s6e63m0",

		.owner	= THIS_MODULE,

		.pm	= &s6e63m0_pm_ops,

	},

	.probe		= s6e63m0_probe,

	.remove		= s6e63m0_remove,

	.shutdown	= s6e63m0_shutdown,

	.suspend	= s6e63m0_suspend,

	.resume		= s6e63m0_resume,

};



module_spi_driver(s6e63m0_driver);