USB: Rework musb suspend()/resume_early()

This patch reworks platform driver power management code
for musb from legacy callbacks to dev_pm_ops.

The callbacks are converted for CONFIG_SUSPEND like this:
  suspend() -> suspend()
  resume_early() -> resume_noirq()

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 554a414..1191928 100644 (file)
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -2168,8 +2168,9 @@ static int __devexit musb_remove(struct platform_device *pdev)
 
 #ifdef CONFIG_PM
 
-static int musb_suspend(struct platform_device *pdev, pm_message_t message)
+static int musb_suspend(struct device *dev)
 {
+       struct platform_device *pdev = to_platform_device(dev);
        unsigned long   flags;
        struct musb     *musb = dev_to_musb(&pdev->dev);
 
@@ -2196,8 +2197,9 @@ static int musb_suspend(struct platform_device *pdev, pm_message_t message)
        return 0;
 }
 
-static int musb_resume_early(struct platform_device *pdev)
+static int musb_resume_noirq(struct device *dev)
 {
+       struct platform_device *pdev = to_platform_device(dev);
        struct musb     *musb = dev_to_musb(&pdev->dev);
 
        if (!musb->clock)
@@ -2215,9 +2217,14 @@ static int musb_resume_early(struct platform_device *pdev)
        return 0;
 }
 
+static struct dev_pm_ops musb_dev_pm_ops = {
+       .suspend        = musb_suspend,
+       .resume_noirq   = musb_resume_noirq,
+};
+
+#define MUSB_DEV_PM_OPS (&musb_dev_pm_ops)
 #else
-#define        musb_suspend    NULL
-#define        musb_resume_early       NULL
+#define        MUSB_DEV_PM_OPS NULL
 #endif
 
 static struct platform_driver musb_driver = {
@@ -2225,11 +2232,10 @@ static struct platform_driver musb_driver = {
                .name           = (char *)musb_driver_name,
                .bus            = &platform_bus_type,
                .owner          = THIS_MODULE,
+               .pm             = MUSB_DEV_PM_OPS,
        },
        .remove         = __devexit_p(musb_remove),
        .shutdown       = musb_shutdown,
-       .suspend        = musb_suspend,
-       .resume_early   = musb_resume_early,
 };
 
 /*-------------------------------------------------------------------------*/