RE: [PATCH v18 2/4] dmaengine: tegra: Add tegra gpcdma driver

[Akhil R]

> 03.02.2022 06:44, Akhil R пишет:
> >> But why do you need to pause at all here and can't use
> >> tegra_dma_stop_client() even if pause is supported?
> > The recommended method to terminate a transfer in
> > between is to pause the channel first and then disable it.
> > This is more graceful and stable for the hardware.
> > stop_client() is more abrupt, though it does the job.
> 
> If there is no real practical difference, then I'd use the common method
> only. This will make code cleaner and simpler a tad.
This is the documented way of clean exit from a transfer, especially for
cyclic transfers where the DMA is configured in continuous mode.
I guess it might not be a good idea to deviate from that unless there is
something demanding it compulsorily.

I agree that the code will be cleaner. I would try to see if I can find a cleaner
way to do this. Please do let me know if you have any suggestion.

Thanks,
Akhil