linux-kernel - [PATCH V3 01/12] dmaengine/dw_dmac: Hibernation support in dw

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Date:	Wed, 1 Feb 2012 16:12:17 +0530
From:	Viresh Kumar <viresh.kumar@...com>
To:	<vinod.koul@...el.com>, <dan.j.williams@...el.com>
Cc:	<cjb@...top.org>, <rmk+kernel@....linux.org.uk>,
	<linus.walleij@...aro.org>, <ulf.hansson@...ricsson.com>,
	<linux-mmc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<egtvedt@...fundet.no>, <hskinnemoen@...il.com>,
	<kernel@...gutronix.de>, <perex@...ex.cz>,
	<linux-arm-kernel@...ts.infradead.org>, <armando.visconti@...com>,
	<shiraz.hashim@...com>, <vipin.kumar@...com>,
	<rajeev-dlh.kumar@...com>, <deepak.sikri@...com>,
	<vipulkumar.samar@...com>, <amit.virdi@...com>,
	<viresh.kumar@...com>, <pratyush.anand@...com>,
	<bhupesh.sharma@...com>, <viresh.linux@...il.com>,
	<bhavna.yadav@...com>, <vincenzo.frascino@...com>,
	<mirko.gardi@...com>
Subject: [PATCH V3 01/12] dmaengine/dw_dmac: Hibernation support in dw_dmac

From: Rajeev KUMAR <rajeev-dlh.kumar@...com>

The suspend and resume implementation is through dev_pm_ops in dmac. So
in order to support hibernation, freeze, thaw, restore and poweroff
features are required.

Signed-off-by: Rajeev Kumar <rajeev-dlh.kumar@...com>
Acked-by: Viresh Kumar <viresh.kumar@...com>
---
 drivers/dma/dw_dmac.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index 9b592b0..3a3d7ed 100644
--- a/drivers/dma/dw_dmac.c
+++ b/drivers/dma/dw_dmac.c
@@ -1562,6 +1562,10 @@ static int dw_resume_noirq(struct device *dev)
 static const struct dev_pm_ops dw_dev_pm_ops = {
 	.suspend_noirq = dw_suspend_noirq,
 	.resume_noirq = dw_resume_noirq,
+	.freeze_noirq = dw_suspend_noirq,
+	.thaw_noirq = dw_resume_noirq,
+	.restore_noirq = dw_resume_noirq,
+	.poweroff_noirq = dw_suspend_noirq,
 };
 
 static struct platform_driver dw_driver = {
-- 
1.7.8.110.g4cb5d

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