On Mon, Nov 25, 2013 at 1:47 PM, Stephen Warren <swarren@xxxxxxxxxxxxx> wrote: > From: Stephen Warren <swarren@xxxxxxxxxx> > > dma_request_slave_channel() simply returns NULL whenever DMA channel > lookup fails. Lookup could fail for two distinct reasons: > > a) No DMA specification exists for the channel name. > This includes situations where no DMA specifications exist at all, or > other general lookup problems. > > b) A DMA specification does exist, yet the driver for that channel is not > yet registered. > > Case (b) should trigger deferred probe in client drivers. However, since > they have no way to differentiate the two situations, it cannot. > > Implement new function dma_request_slave_channel_or_err(), which performs Oops, one more s/_or_err/_reason/ Other than that: Acked-by: Dan Williams <dan.j.williams@xxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
