linux-kernel - [PATCH 03/07] dma: rework txx9dmac suspend_late()/resume

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Date:	Wed, 24 Jun 2009 18:23:33 +0900
From:	Magnus Damm <magnus.damm@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	gregkh@...e.de, ben-linux@...ff.org, hskinnemoen@...el.com,
	anemo@....ocn.ne.jp, linux-usb@...r.kernel.org,
	akpm@...ux-foundation.org, rjw@...k.pl, stern@...land.harvard.edu,
	pavel@....cz, Magnus Damm <magnus.damm@...il.com>,
	linux-omap@...r.kernel.org, linux-pm@...ts.linux-foundation.org,
	felipe.balbi@...ia.com
Subject: [PATCH 03/07] dma: rework txx9dmac suspend_late()/resume_early()

From: Magnus Damm <damm@...l.co.jp>

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@...l.co.jp>
---

 Untested but compiles fine.

 drivers/dma/txx9dmac.c |   15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

--- 0001/drivers/dma/txx9dmac.c
+++ work/drivers/dma/txx9dmac.c	2009-06-01 16:34:23.000000000 +0900
@@ -1287,17 +1287,18 @@ static void txx9dmac_shutdown(struct pla
 	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;
@@ -1310,6 +1311,11 @@ static int txx9dmac_resume_early(struct 
 
 }
 
+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 = {
@@ -1320,10 +1326,9 @@ static struct platform_driver txx9dmac_c
 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,
 	},
 };
 
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