ata/pata_arasan_cf: Add Hibernation support

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>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 4 insertions, 8 deletions

diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c
index 048589fad2ca..fc2db2a89a6b 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
         },
 };