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SubjectRe: [PATCH 2/6] dmaengine: mxs: support i.MX7D and deep sleep mode
On Tue, Jul 28, 2015 at 12:49:13PM -0500, Han Xu wrote:
> From: Huang Shijie <b32955@freescale.com>
>
> The patch support i.MX7D platform by adding extra DMA clock.
>
> Deep Sleep Mode(dsm) turns off the power for APBH DMA module, add
> suspend/resume function and re-init the APBH DMA during resume.

I have only 2/6, whats going on?

> +static int mxs_dma_pm_suspend(struct device *dev)
> +{
> + /*
> + * We do not save any registers here, since the gpmi will release its
> + * DMA channel.
> + */
> + return 0;
> +}
Why do we need the empty fn?

--
~Vinod



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