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authorSaeed Bishara <saeed@marvell.com>2009-12-06 19:26:19 +0300
committerJeff Garzik <jgarzik@redhat.com>2009-12-17 08:56:59 +0300
commit6481f2b52cd5411ea6342b749daf0e4f3b390d7b (patch)
tree7ce843a328f536eaaa8ee475107dc9108646470b /drivers/ata
parentc77a2f4e6b76c9094182dfa653ece4243f6df80c (diff)
downloadlinux-6481f2b52cd5411ea6342b749daf0e4f3b390d7b.tar.xz
sata_mv: add power management support for the platform driver
Signed-off-by: Saeed Bishara <saeed@marvell.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata')
-rwxr-xr-x[-rw-r--r--]drivers/ata/sata_mv.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index b625b3614989..0f7704c0b4cc 100644..100755
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -4112,9 +4112,52 @@ static int __devexit mv_platform_remove(struct platform_device *pdev)
return 0;
}
+#ifdef CONFIG_PM
+static int mv_platform_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct ata_host *host = dev_get_drvdata(&pdev->dev);
+ if (host)
+ return ata_host_suspend(host, state);
+ else
+ return 0;
+}
+
+static int mv_platform_resume(struct platform_device *pdev)
+{
+ struct ata_host *host = dev_get_drvdata(&pdev->dev);
+ int ret;
+
+ if (host) {
+ struct mv_host_priv *hpriv = host->private_data;
+ const struct mv_sata_platform_data *mv_platform_data = \
+ pdev->dev.platform_data;
+ /*
+ * (Re-)program MBUS remapping windows if we are asked to.
+ */
+ if (mv_platform_data->dram != NULL)
+ mv_conf_mbus_windows(hpriv, mv_platform_data->dram);
+
+ /* initialize adapter */
+ ret = mv_init_host(host, chip_soc);
+ if (ret) {
+ printk(KERN_ERR DRV_NAME ": Error during HW init\n");
+ return ret;
+ }
+ ata_host_resume(host);
+ }
+
+ return 0;
+}
+#else
+#define mv_platform_suspend NULL
+#define mv_platform_resume NULL
+#endif
+
static struct platform_driver mv_platform_driver = {
.probe = mv_platform_probe,
.remove = __devexit_p(mv_platform_remove),
+ .suspend = mv_platform_suspend,
+ .resume = mv_platform_resume,
.driver = {
.name = DRV_NAME,
.owner = THIS_MODULE,