On Fri, Apr 22, 2022 at 02:36:03PM +0200, Martin Povišer wrote: > > Ah, I think the confusion here is that I'm using slot and channel > > interchangably whereas you're saying that previously the driver would > > allocate two channels to each speaker with duplicate data? > I guess you could say that. Not that there’s duplicate data on the I2S > bus, but the speaker amp would previously be configured to look for the > left and right channel in the same TDM slot (see e.g. set_tdm_slot of > tas2770 [0]). (Each speaker amp drives a single speaker, but it still > has a notion of left and right channel.) Oh, I see - the speaker actually allows configuration of the slots independently. Usually the left/right thing on mono devices only does something for I2S where the bus clocking enforces that there be both left and right channels. Either configuration is fine by me TBH, if you can do that then you could just keep them mapped to the same channel then mark the control as disabled since it should have no effect.
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