From 9ee4f3933930abf5cc34f8e9d69fe0e08c18f602 Mon Sep 17 00:00:00 2001
From: Lin Ming <ming.m.lin@intel.com>
Date: Mon, 5 Dec 2011 09:20:28 +0800
Subject: ata: add ata port runtime PM callbacks

Add ata port runtime suspend/resume/idle callbacks.
Set ->eh_noresume to skip the runtime PM calls on scsi host
in the error handler to avoid dead lock.

Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---
 drivers/ata/libata-core.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'drivers/ata/libata-core.c')

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 04c208e3cec..15a3d4deb27 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -66,6 +66,7 @@
 #include <asm/byteorder.h>
 #include <linux/cdrom.h>
 #include <linux/ratelimit.h>
+#include <linux/pm_runtime.h>
 
 #include "libata.h"
 #include "libata-transport.h"
@@ -5307,9 +5308,18 @@ static int ata_port_resume(struct device *dev)
 	return rc;
 }
 
+static int ata_port_runtime_idle(struct device *dev)
+{
+	return pm_runtime_suspend(dev);
+}
+
 static const struct dev_pm_ops ata_port_pm_ops = {
 	.suspend = ata_port_suspend,
 	.resume = ata_port_resume,
+
+	.runtime_suspend = ata_port_suspend_common,
+	.runtime_resume = ata_port_resume,
+	.runtime_idle = ata_port_runtime_idle,
 };
 
 /**
-- 
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