Messages in this thread |  | | From | Arnd Bergmann <> | Subject | Re: [PATCH RFC 2/2] ARM: pxa: transition to dmaengine phase 1 | Date | Mon, 16 Feb 2015 11:28:57 +0100 |
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On Saturday 14 February 2015 23:47:33 Robert Jarzmik wrote: > @@ -294,7 +294,8 @@ int pxa_request_dma (char *name, pxa_dma_prio prio, > /* try grabbing a DMA channel with the requested priority */ > for (i = 0; i < num_dma_channels; i++) { > if ((dma_channels[i].prio == prio) && > - !dma_channels[i].name) { > + !dma_channels[i].name && > + !mmp_pdma_toggle_reserved_channel(i)) { > found = 1; > break; > } >
How is the order between the two enforced? I.e. can it be that the dmaengine driver uses the same channel for a different slave before we get here?
If this is ensured to work, I'm fine with your approach.
Arnd
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