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: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 9 insertions, 11 deletions

diff --git a/drivers/video/backlight/s6e63m0.c b/drivers/video/backlight/s6e63m0.c
index 9c2677f0ef7d..b37bb1854bf4 100644
--- a/drivers/video/backlight/s6e63m0.c
+++ b/drivers/video/backlight/s6e63m0.c
@@ -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);