On 17/10/2023 18:09, Pierre-Louis Bossart wrote: > The existing SoundWire support misses a clear Controller/Manager > hiearchical definition to deal with all variants across SOC vendors. > > a) Intel platforms have one controller with 4 or more Managers. > b) AMD platforms have two controllers with one Manager each, but due > to BIOS issues use two different link_id values within the scope of a > single controller. > c) QCOM platforms have one or more controller with one Manager each. > > This patch adds a 'controller_id' which can be set by higher > levels. If assigned to -1, the controller_id will be set to the > system-unique IDA-assigned bus->id. > > The main change is that the bus->id is no longer used for any device > name, which makes the definition completely predictable and not > dependent on any enumeration order. The bus->id is only used to insert > the Managers in the stream rt context. > > Reviewed-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx> > Reviewed-by: Vijendar Mukunda <Vijendar.Mukunda@xxxxxxx> > Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> Tested-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> Best regards, Krzysztof
