DMA: Rework txx9dmac suspend_late()/resume_early()
Magnus Damm [Wed, 8 Jul 2009 11:22:27 +0000 (13:22 +0200)]
This patch reworks platform driver power management code
for txx9dmac from legacy late/early callbacks to dev_pm_ops.

The callbacks are converted for CONFIG_SUSPEND like this:
  suspend_late() -> suspend_noirq()
  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>

drivers/dma/txx9dmac.c

index 88dab52..7837930 100644 (file)
@@ -1291,17 +1291,18 @@ static void txx9dmac_shutdown(struct platform_device *pdev)
        txx9dmac_off(ddev);
 }
 
-static int txx9dmac_suspend_late(struct platform_device *pdev,
-                                pm_message_t mesg)
+static int txx9dmac_suspend_noirq(struct device *dev)
 {
+       struct platform_device *pdev = to_platform_device(dev);
        struct txx9dmac_dev *ddev = platform_get_drvdata(pdev);
 
        txx9dmac_off(ddev);
        return 0;
 }
 
-static int txx9dmac_resume_early(struct platform_device *pdev)
+static int txx9dmac_resume_noirq(struct device *dev)
 {
+       struct platform_device *pdev = to_platform_device(dev);
        struct txx9dmac_dev *ddev = platform_get_drvdata(pdev);
        struct txx9dmac_platform_data *pdata = pdev->dev.platform_data;
        u32 mcr;
@@ -1314,6 +1315,11 @@ static int txx9dmac_resume_early(struct platform_device *pdev)
 
 }
 
+static struct dev_pm_ops txx9dmac_dev_pm_ops = {
+       .suspend_noirq = txx9dmac_suspend_noirq,
+       .resume_noirq = txx9dmac_resume_noirq,
+};
+
 static struct platform_driver txx9dmac_chan_driver = {
        .remove         = __exit_p(txx9dmac_chan_remove),
        .driver = {
@@ -1324,10 +1330,9 @@ static struct platform_driver txx9dmac_chan_driver = {
 static struct platform_driver txx9dmac_driver = {
        .remove         = __exit_p(txx9dmac_remove),
        .shutdown       = txx9dmac_shutdown,
-       .suspend_late   = txx9dmac_suspend_late,
-       .resume_early   = txx9dmac_resume_early,
        .driver = {
                .name   = "txx9dmac",
+               .pm     = &txx9dmac_dev_pm_ops,
        },
 };