Messages in this thread | | | Date | Thu, 8 Dec 2016 16:09:21 +0530 | From | Vinod Koul <> | Subject | Re: Tearing down DMA transfer setup after DMA client has finished |
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On Wed, Dec 07, 2016 at 04:45:58PM +0000, Måns Rullgård wrote: > Vinod Koul <vinod.koul@intel.com> writes: > > > 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! > > Tell that to just about every single driver ever written.
Not really, few do yes which is wrong but not _all_ do that.
-- ~Vinod
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