24.11.2021 19:47, Arnd Bergmann пишет:

On Wed, Nov 24, 2021 at 5:32 PM Dmitry Osipenko [off-list ref] wrote:

quoted

23.11.2021 01:21, Arnd Bergmann пишет:

The commit message is correct, however you could remove even more code
here. But there is no need to make a v3 just because this patch because
I already prepared patchset that revives this S/PDIF driver and enables
HDMI audio on Tegra20. I'll take care of cleaning up the whole code of
this driver.

Ok, perfect, thanks for taking a closer look as well.

quoted

-       dmareq = platform_get_resource(pdev, IORESOURCE_DMA, 0);
-       if (!dmareq) {
-               dev_err(&pdev->dev, "No DMA resource\n");
-               return -ENODEV;
-       }
-

Right, I think I considered doing this at some point as well, not sure
why I left it in for the version I posted. Passing the IORESOURCE_DMA
values is clearly wrong by itself and needs to be removed, though
it's not obvious what the correct way of requesting the DMA channel
is for this driver either, without a DT binding or users.

Yes, it's indeed not obvious.