diff options
| author | Jingoo Han <jg1.han@samsung.com> | 2013-04-30 01:17:35 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-04-30 03:28:15 +0200 |
| commit | eba3bfb4c086ead379430439f7bf710697e62c45 (patch) | |
| tree | c209abcb092844b8046c7de4c3d4b976f92967a2 | |
| parent | drivers/video/backlight/l4f00242t03.c: check return value of regulator_enable() (diff) | |
| download | linux-eba3bfb4c086ead379430439f7bf710697e62c45.tar.xz linux-eba3bfb4c086ead379430439f7bf710697e62c45.zip | |
backlight: ld9040: convert ld9040 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@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | drivers/video/backlight/ld9040.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/drivers/video/backlight/ld9040.c b/drivers/video/backlight/ld9040.c index 1b642f5f381a..1e0a3093ce50 100644 --- a/drivers/video/backlight/ld9040.c +++ b/drivers/video/backlight/ld9040.c @@ -775,12 +775,12 @@ static int ld9040_remove(struct spi_device *spi) return 0; } -#if defined(CONFIG_PM) -static int ld9040_suspend(struct spi_device *spi, pm_message_t mesg) +#ifdef CONFIG_PM_SLEEP +static int ld9040_suspend(struct device *dev) { - struct ld9040 *lcd = spi_get_drvdata(spi); + struct ld9040 *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 @@ -789,19 +789,18 @@ static int ld9040_suspend(struct spi_device *spi, pm_message_t mesg) return ld9040_power(lcd, FB_BLANK_POWERDOWN); } -static int ld9040_resume(struct spi_device *spi) +static int ld9040_resume(struct device *dev) { - struct ld9040 *lcd = spi_get_drvdata(spi); + struct ld9040 *lcd = dev_get_drvdata(dev); lcd->power = FB_BLANK_POWERDOWN; return ld9040_power(lcd, FB_BLANK_UNBLANK); } -#else -#define ld9040_suspend NULL -#define ld9040_resume NULL #endif +static SIMPLE_DEV_PM_OPS(ld9040_pm_ops, ld9040_suspend, ld9040_resume); + /* Power down all displays on reboot, poweroff or halt. */ static void ld9040_shutdown(struct spi_device *spi) { @@ -814,12 +813,11 @@ static struct spi_driver ld9040_driver = { .driver = { .name = "ld9040", .owner = THIS_MODULE, + .pm = &ld9040_pm_ops, }, .probe = ld9040_probe, .remove = ld9040_remove, .shutdown = ld9040_shutdown, - .suspend = ld9040_suspend, - .resume = ld9040_resume, }; module_spi_driver(ld9040_driver); |