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

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Message-ID: <1326262989-18608-1-git-send-email-rajeev-dlh.kumar@st.com>
Date:	Wed, 11 Jan 2012 11:53:09 +0530
From:	Rajeev Kumar <rajeev-dlh.kumar@...com>
To:	<viresh.kumar@...com>
Cc:	<linus.walleij@...aro.org>, <mirko.gardi@...com>,
	<bhupesh.sharma@...com>, <deepak.sikri@...com>,
	<shiraz.hashim@...com>, <vipin.kumar@...com>,
	<vipulkumar.samar@...com>, <pratyush.anand@...com>,
	<rajeev-dlh.kumar@...com>, <armando.visconti@...com>,
	<vinod.koul@...el.com>, <dan.j.williams@...el.com>,
	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <linux@....linux.org.uk>
Subject: [PATCH] dmaengine/dw_dmac: Hibernation support in dw_dmac

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

Signed-off-by: Rajeev Kumar <rajeev-dlh.kumar@...com>
---
 drivers/dma/dw_dmac.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index d2e1c25..cb346d6 100644
--- a/drivers/dma/dw_dmac.c
+++ b/drivers/dma/dw_dmac.c
@@ -1568,6 +1568,9 @@ 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,
 };
 
 static struct platform_driver dw_driver = {
-- 
1.6.0.2

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