linux-kernel - Re: [PATCH V2] dmaengine/dw_dmac: Hibernation support in dw

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Message-ID: <4F0EA0B9.2090700@st.com>
Date:	Thu, 12 Jan 2012 14:28:33 +0530
From:	Viresh Kumar <viresh.kumar@...com>
To:	Rajeev KUMAR <rajeev-dlh.kumar@...com>
Cc:	"vinod.koul@...el.com" <vinod.koul@...el.com>,
	"linus.walleij@...aro.org" <linus.walleij@...aro.org>,
	Mirko GARDI <mirko.gardi@...com>,
	Bhupesh SHARMA <bhupesh.sharma@...com>,
	Deepak SIKRI <deepak.sikri@...com>,
	Shiraz HASHIM <shiraz.hashim@...com>,
	Vipin KUMAR <vipin.kumar@...com>,
	Vipul Kumar SAMAR <vipulkumar.samar@...com>,
	Pratyush ANAND <pratyush.anand@...com>,
	Armando VISCONTI <armando.visconti@...com>,
	"dan.j.williams@...el.com" <dan.j.williams@...el.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux@....linux.org.uk" <linux@....linux.org.uk>
Subject: Re: [PATCH V2] dmaengine/dw_dmac: Hibernation support in dw_dmac

On 1/12/2012 2:17 PM, Rajeev KUMAR wrote:
> 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>
> ---
>  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,

Acked-by: Viresh Kumar <viresh.kumar@...com>

-- 
viresh
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