Tearing down DMA transfer setup after DMA client has finished

Vinod Koul vinod.koul at intel.com
Wed Dec 7 08:43:41 PST 2016


On Tue, Dec 06, 2016 at 01:14:20PM +0000, Måns Rullgård wrote:
> 
> That's not going to work very well.  Device drivers typically request
> dma channels in their probe functions or when the device is opened.
> This means that reserving one of the few channels there will inevitably
> make some other device fail to operate.

No that doesnt make sense at all, you should get a channel only when you
want to use it and not in probe!

-- 
~Vinod



More information about the linux-arm-kernel mailing list