On Wed, Sep 11, 2013 at 09:45:58AM +0200, Łukasz Czerwiński wrote: > I based my patch on the spi-tegra114.c driver. There is > dma_chanel_request at the beginning in the probe function. > I really should correct S5C73M3 firmware upload function. Yes, that can be the best idea in cases where the DMA channel is tied to the hardware block it's controlling so there's no possibility that something else could make use of it when idle. It does also avoid the possibility of getting the DMA controller busy when you try to use it but it depends how oversubscribed the DMA controller is. > When I added small modification into S5C73M3 driver I achieved the > same effect. > Sorry for wasting your time. No problem.
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