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authorDan Williams <dan.j.williams@intel.com>2009-09-10 00:06:44 +0200
committerRafael J. Wysocki <rjw@sisk.pl>2009-09-14 20:27:00 +0200
commit33f82d141c897f39cd8bce592d88cb3c5af58342 (patch)
tree7765831183d05fb635e60e8f8bf92e0bdfe06b5c
parent3eb132c986f04f64b9c360abd67a1e0d18d6d5b4 (diff)
downloadlinux-33f82d141c897f39cd8bce592d88cb3c5af58342.tar.gz
at_hdmac: Rework suspend_late()/resume_early()
This patch reworks platform driver power management code
for at_hdmac 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: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
-rw-r--r--drivers/dma/at_hdmac.c19
1 files changed, 12 insertions, 7 deletions
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index 9a1e5fb412ed..c8522e6f1ad2 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -1166,32 +1166,37 @@ static void at_dma_shutdown(struct platform_device *pdev)
 	clk_disable(atdma->clk);
 }
 
-static int at_dma_suspend_late(struct platform_device *pdev, pm_message_t mesg)
+static int at_dma_suspend_noirq(struct device *dev)
 {
-	struct at_dma	*atdma = platform_get_drvdata(pdev);
+	struct platform_device *pdev = to_platform_device(dev);
+	struct at_dma *atdma = platform_get_drvdata(pdev);
 
 	at_dma_off(platform_get_drvdata(pdev));
 	clk_disable(atdma->clk);
 	return 0;
 }
 
-static int at_dma_resume_early(struct platform_device *pdev)
+static int at_dma_resume_noirq(struct device *dev)
 {
-	struct at_dma	*atdma = platform_get_drvdata(pdev);
+	struct platform_device *pdev = to_platform_device(dev);
+	struct at_dma *atdma = platform_get_drvdata(pdev);
 
 	clk_enable(atdma->clk);
 	dma_writel(atdma, EN, AT_DMA_ENABLE);
 	return 0;
-
 }
 
+static struct dev_pm_ops at_dma_dev_pm_ops = {
+	.suspend_noirq = at_dma_suspend_noirq,
+	.resume_noirq = at_dma_resume_noirq,
+};
+
 static struct platform_driver at_dma_driver = {
 	.remove		= __exit_p(at_dma_remove),
 	.shutdown	= at_dma_shutdown,
-	.suspend_late	= at_dma_suspend_late,
-	.resume_early	= at_dma_resume_early,
 	.driver = {
 		.name	= "at_hdmac",
+		.pm	= &at_dma_dev_pm_ops,
 	},
 };