On Thu, Oct 08, 2015 at 12:12:35PM -0400, Alex Deucher wrote: > From: Maruthi Srinivas Bayyavarapu <Maruthi.Bayyavarapu@xxxxxxx> > > Some platforms (Ex: AMD CZ) can have separate dwc controllers with > different base address for playback and capture. This patch adds > necessary changes to support it. Platforms which make use of it can > supply a quirk in platform data to make use of this. By default, > playback and capture base addesses are assumed to be same. If these are two physically separate controllers that don't share anything then why are they being represented as a single device as opposed to just having two devices, one for playback and one for capture? You'd still need to register the DAI differently but it should be a much less invasive change and map much more naturally onto the device model (what if some system has put playback and capture into separate power domains for example?). If we do go with this then we will also need an update to the DT binding to document how the additional resources associated with the second controller are described.
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