On Thu, May 03, 2018 at 10:46:56AM +0200, Geert Uytterhoeven wrote: > Perhaps you can add a new helper (platform_device_register_simple_dma()?) > that takes the DMA mask, too? > With people setting the mask to kill the WARNING splat, this may become > more common. > > struct platform_device_info already has a dma_mask field, but > platform_device_register_resndata() explicitly sets it to zero.
Yes, that would be useful. The other assumption could be that platform devices always allow an all-0xff dma mask.
