Messages in this thread | | | Date | Thu, 13 Aug 2015 15:58:01 -0500 | Subject | Re: [PATCH v2] dmaengine: fsl-edma: add PM suspend/resume support | From | Li Yang <> |
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On Tue, Jul 21, 2015 at 3:56 AM, Yuan Yao <yao.yuan@freescale.com> 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 and if it is not idle, stop PM > operation.
You should try to quiesce the device on suspend instead of depending on itself to be happen in idle and failing if it is not.
Regards, Leo
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