Pierre-Louis Bossart 154cfc3d27 soundwire: bus: introduce controller_id ... [ Upstream commit 6543ac13c6 ] 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@linux.intel.com> Reviewed-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Tested-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/stable/20231017160933.12624-2-pierre-louis.bossart%40linux.intel.com Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20231017160933.12624-2-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org> Stable-dep-of: 8a8a9ac8a4 ("soundwire: fix initializing sysfs for same devices on different buses") Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-01-31 16:18:47 -08:00
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sdw_amd.h	soundwire: amd: add runtime pm ops for AMD SoundWire manager driver	2023-04-12 15:30:36 +05:30
sdw_intel.h	soundwire updates for 6.6	2023-09-03 10:20:57 -07:00
sdw_registers.h
sdw_type.h	driver core: make struct device_type.uevent() take a const *	2023-01-27 13:45:36 +01:00
sdw.h	soundwire: bus: introduce controller_id	2024-01-31 16:18:47 -08:00