On Tue, 2016-04-19 at 14:38 +0300, Felipe Balbi wrote: > > The reason for that I'm using a manually created platform_device and > that misses dev->archdata which the underlying/parent PCI device has. Typically we'd expect you to use the parent device for DMA, as in your second option. That said, we're exploring the option of moving the dma_ops to be a first-class member of 'struct device' instead of hiding it in archdata, and cleaning up the way that it gets initialised for newly-created devices. And at that point we might end up letting it get inherited from the parent so your original code *would* work... but I wouldn't hold your breath for that. Definitely *don't* mess around in archdata. -- David Woodhouse Open Source Technology Centre David.Woodhouse@xxxxxxxxx Intel Corporation
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