Messages in this thread | | | Date | Wed, 19 Dec 2012 10:02:53 -0700 | From | Stephen Warren <> | Subject | Re: [PATCH] dma: tegra: implement flags parameters for cyclic transfer |
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On 12/19/2012 06:40 AM, Laxman Dewangan wrote: > The flag parameter is added in the cyclic transfer request. > Use the flag option of: > - DMA_PREP_INTERRUPT for enabling interrupt. > - DMA_CTRL_ACK for deciding whether ack is requred or not for > descriptor.
Do the relevant drivers that use Tegra's DMA engine already set flags correctly, so that this change won't cause any regressions?
Why would you not want to enable interrupts; how does a client know when to refill the buffer?
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