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authorViresh Kumar <viresh.kumar@st.com>2012-02-23 15:03:53 +0530
committerJeff Garzik <jgarzik@redhat.com>2012-03-13 12:43:13 -0400
commit40679b3ce9d993e33e026f402cbfffb35d2c4e3c (patch)
tree779816302b60f3d71804a15cebbf2bd3a20d1237
parent9716387311c790de381214c03e7f1b72b91a8189 (diff)
downloadlinux-bcache-40679b3ce9d993e33e026f402cbfffb35d2c4e3c.tar.zst
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>
-rw-r--r--drivers/ata/pata_arasan_cf.c12
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
},
};