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Subject[PATCH V2] backlight: ams369fg06: convert ams369fg06 to dev_pm_ops
Date
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>
---
Changes since v1:
- Remove unnecessary ifdefs.

drivers/video/backlight/ams369fg06.c | 21 ++++++++++-----------
1 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/drivers/video/backlight/ams369fg06.c b/drivers/video/backlight/ams369fg06.c
index d29e494..068194b 100644
--- a/drivers/video/backlight/ams369fg06.c
+++ b/drivers/video/backlight/ams369fg06.c
@@ -535,12 +535,12 @@ static int ams369fg06_remove(struct spi_device *spi)
return 0;
}

-#if defined(CONFIG_PM)
-static int ams369fg06_suspend(struct spi_device *spi, pm_message_t mesg)
+#ifdef CONFIG_PM_SLEEP
+static int ams369fg06_suspend(struct device *dev)
{
- struct ams369fg06 *lcd = spi_get_drvdata(spi);
+ struct ams369fg06 *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
@@ -549,19 +549,19 @@ static int ams369fg06_suspend(struct spi_device *spi, pm_message_t mesg)
return ams369fg06_power(lcd, FB_BLANK_POWERDOWN);
}

-static int ams369fg06_resume(struct spi_device *spi)
+static int ams369fg06_resume(struct device *dev)
{
- struct ams369fg06 *lcd = spi_get_drvdata(spi);
+ struct ams369fg06 *lcd = dev_get_drvdata(dev);

lcd->power = FB_BLANK_POWERDOWN;

return ams369fg06_power(lcd, FB_BLANK_UNBLANK);
}
-#else
-#define ams369fg06_suspend NULL
-#define ams369fg06_resume NULL
#endif

+static SIMPLE_DEV_PM_OPS(ams369fg06_pm_ops, ams369fg06_suspend,
+ ams369fg06_resume);
+
static void ams369fg06_shutdown(struct spi_device *spi)
{
struct ams369fg06 *lcd = spi_get_drvdata(spi);
@@ -573,12 +573,11 @@ static struct spi_driver ams369fg06_driver = {
.driver = {
.name = "ams369fg06",
.owner = THIS_MODULE,
+ .pm = &ams369fg06_pm_ops,
},
.probe = ams369fg06_probe,
.remove = ams369fg06_remove,
.shutdown = ams369fg06_shutdown,
- .suspend = ams369fg06_suspend,
- .resume = ams369fg06_resume,
};

module_spi_driver(ams369fg06_driver);
--
1.7.2.5



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