linux-kernel - Re: [PATCH v6 2/7] dmaengine: mxs: APBH DMA supports deep sleep mode

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Date:	Tue, 27 Oct 2015 11:25:10 +0900
From:	Vinod Koul <vinod.koul@...el.com>
To:	Han Xu <b45815@...escale.com>
Cc:	shijie.huang@....com, dwmw2@...radead.org,
	computersforpeace@...il.com, boris.brezillon@...e-electrons.com,
	fabio.estevam@...escale.com, hofrat@...dl.org,
	linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
	dan.j.williams@...el.com, dmaengine@...r.kernel.org
Subject: Re: [PATCH v6 2/7] dmaengine: mxs: APBH DMA supports deep sleep mode

On Thu, Oct 22, 2015 at 02:54:31PM -0500, Han Xu wrote:
> +static int mxs_dma_pm_resume(struct device *dev)
> +{
> +	struct mxs_dma_engine *mxs_dma = dev_get_drvdata(dev);
> +	int ret;
> +
> +	ret = mxs_dma_init(mxs_dma);
> +	if (ret)
> +		return ret;
> +	return 0;
> +}

Did you compile this without runtime PM defined, it will give out a warning
of unused symbol which cna be fixed by definig thru under runtime pm config

-- 
~Vinod
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