linux-kernel - Re: [PATCH v4] dmaengine: fsl-edma: add PM suspend/resume support

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Message-ID: <20151205102237.GZ1854@localhost>
Date:	Sat, 5 Dec 2015 15:52:37 +0530
From:	Vinod Koul <vinod.koul@...el.com>
To:	Yuan Yao <yao.yuan@...escale.com>
Cc:	stefan@...er.ch, arnd@...db.de, dan.j.williams@...el.com,
	dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v4] dmaengine: fsl-edma: add PM suspend/resume support

On Fri, Oct 30, 2015 at 07:03:58PM +0800, Yuan Yao wrote:
> This add power management suspend/resume support for the fsl-edma
> driver.
> 
> eDMA acted as a basic function used by others. What it needs to do
> is the two steps below to support power management.
> 
> In fsl_edma_suspend_late:
> Check whether the DMA chan is idle, if it is not idle disable DMA
> request.
> 
> In fsl_edma_resume_early:
> Enable the eDMA and wait for being used.
> 
Applied, thanks

-- 
~Vinod
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