On Tue, Apr 11, 2017 at 03:44:52PM +0000, Olivier MOYSAN wrote: > However, regarding STM32 I2S driver, I'm wondering if selecting DAI > is the best way to configure interface as tx, rx or fd. Why do you even need to configure this? > Maybe, it is more relevant to configure DAI according to DMA > configuration from I2S node. > This would moreover avoid to allocate 2 dmas channels when not > necessary (tx or rx only). > If you agree with this, I will implement this change in a v2. That sounds wrong, I'd expect this wiring to be done statically as part of the .dtsi for the SoC (or just grabbed as needed at runtime if things are flexbile enough) rather than being a configuration thing done per board... I had thought that this was configuration reflecting different ways of taping out the IP with different feature sets, is that not the case?
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