i2c-puv3: Use struct dev_pm_ops for power management
Make the PKUnity-v3 SoC I2C controller driver define its suspend
callback through a struct dev_pm_ops object rather than by using
a legacy PM hook in struct platform_driver. The empty resume
callback is not necessary, so remove it.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
diff --git a/drivers/i2c/busses/i2c-puv3.c b/drivers/i2c/busses/i2c-puv3.c
index 93709fb..d8515be 100644
--- a/drivers/i2c/busses/i2c-puv3.c
+++ b/drivers/i2c/busses/i2c-puv3.c
@@ -254,7 +254,7 @@
}
#ifdef CONFIG_PM
-static int puv3_i2c_suspend(struct platform_device *dev, pm_message_t state)
+static int puv3_i2c_suspend(struct device *dev)
{
int poll_count;
/* Disable the IIC */
@@ -267,23 +267,20 @@
return 0;
}
-static int puv3_i2c_resume(struct platform_device *dev)
-{
- return 0 ;
-}
+static SIMPLE_DEV_PM_OPS(puv3_i2c_pm, puv3_i2c_suspend, NULL);
+#define PUV3_I2C_PM (&puv3_i2c_pm)
+
#else
-#define puv3_i2c_suspend NULL
-#define puv3_i2c_resume NULL
+#define PUV3_I2C_PM NULL
#endif
static struct platform_driver puv3_i2c_driver = {
.probe = puv3_i2c_probe,
.remove = __devexit_p(puv3_i2c_remove),
- .suspend = puv3_i2c_suspend,
- .resume = puv3_i2c_resume,
.driver = {
.name = "PKUnity-v3-I2C",
.owner = THIS_MODULE,
+ .pm = PUV3_I2C_PM,
}
};