backlight: ltv350qv: convert ltv350qv 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>

diff --git a/drivers/video/backlight/ltv350qv.c b/drivers/video/backlight/ltv350qv.c
index c0b4b8f..ed1b392 100644 (file)
--- a/drivers/video/backlight/ltv350qv.c
+++ b/drivers/video/backlight/ltv350qv.c
@@ -271,25 +271,24 @@ static int ltv350qv_remove(struct spi_device *spi)
        return 0;
 }
 
-#ifdef CONFIG_PM
-static int ltv350qv_suspend(struct spi_device *spi, pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int ltv350qv_suspend(struct device *dev)
 {
-       struct ltv350qv *lcd = spi_get_drvdata(spi);
+       struct ltv350qv *lcd = dev_get_drvdata(dev);
 
        return ltv350qv_power(lcd, FB_BLANK_POWERDOWN);
 }
 
-static int ltv350qv_resume(struct spi_device *spi)
+static int ltv350qv_resume(struct device *dev)
 {
-       struct ltv350qv *lcd = spi_get_drvdata(spi);
+       struct ltv350qv *lcd = dev_get_drvdata(dev);
 
        return ltv350qv_power(lcd, FB_BLANK_UNBLANK);
 }
-#else
-#define ltv350qv_suspend       NULL
-#define ltv350qv_resume                NULL
 #endif
 
+static SIMPLE_DEV_PM_OPS(ltv350qv_pm_ops, ltv350qv_suspend, ltv350qv_resume);
+
 /* Power down all displays on reboot, poweroff or halt */
 static void ltv350qv_shutdown(struct spi_device *spi)
 {
@@ -302,13 +301,12 @@ static struct spi_driver ltv350qv_driver = {
        .driver = {
                .name           = "ltv350qv",
                .owner          = THIS_MODULE,
+               .pm             = &ltv350qv_pm_ops,
        },
 
        .probe          = ltv350qv_probe,
        .remove         = ltv350qv_remove,
        .shutdown       = ltv350qv_shutdown,
-       .suspend        = ltv350qv_suspend,
-       .resume         = ltv350qv_resume,
 };
 
 module_spi_driver(ltv350qv_driver);