24.11.2021 19:47, Arnd Bergmann пишет: > On Wed, Nov 24, 2021 at 5:32 PM Dmitry Osipenko <digetx@xxxxxxxxx> wrote: >> 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. > >> >> - 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.