Patchwork ata/pata_arasan_cf: Add Hibernation support

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Submitter Viresh KUMAR
Date Feb. 23, 2012, 9:33 a.m.
Message ID <788f006c530a7577380d75a60ba9ab23e8d975c9.1329989550.git.viresh.kumar@st.com>
Download mbox | patch
Permalink /patch/142584/
State Not Applicable
Delegated to: David Miller
Headers show

Comments

Viresh KUMAR - Feb. 23, 2012, 9:33 a.m.
This patch adds in Hibernation related callbacks. Also we don't really need to
free DMA channel on suspend.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
---
 drivers/ata/pata_arasan_cf.c |   12 ++++--------
 1 files changed, 4 insertions(+), 8 deletions(-)

Patch

diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c
index 048589f..fc2db2a 100644
--- a/drivers/ata/pata_arasan_cf.c
+++ b/drivers/ata/pata_arasan_cf.c
@@ -925,11 +925,10 @@  static int arasan_cf_suspend(struct device *dev)
 	struct ata_host *host = dev_get_drvdata(dev);
 	struct arasan_cf_dev *acdev = host->ports[0]->private_data;
 
-	if (acdev->dma_chan) {
+	if (acdev->dma_chan)
 		acdev->dma_chan->device->device_control(acdev->dma_chan,
 				DMA_TERMINATE_ALL, 0);
-		dma_release_channel(acdev->dma_chan);
-	}
+
 	cf_exit(acdev);
 	return ata_host_suspend(host, PMSG_SUSPEND);
 }
@@ -945,10 +944,7 @@  static int arasan_cf_resume(struct device *dev)
 	return 0;
 }
 
-static const struct dev_pm_ops arasan_cf_pm_ops = {
-	.suspend	= arasan_cf_suspend,
-	.resume		= arasan_cf_resume,
-};
+static SIMPLE_DEV_PM_OPS(arasan_cf_pm_ops, arasan_cf_suspend, arasan_cf_resume);
 #endif
 
 static struct platform_driver arasan_cf_driver = {
@@ -958,7 +954,7 @@  static struct platform_driver arasan_cf_driver = {
 		.name	= DRIVER_NAME,
 		.owner	= THIS_MODULE,
 #ifdef CONFIG_PM
-		.pm		= &arasan_cf_pm_ops,
+		.pm	= &arasan_cf_pm_ops,
 #endif
 	},
 };