linux-toradex.git/include/linux/soundwire, branch v6.9-rc5

Merge tag 'soundwire-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire

2024-03-15T19:22:52+00:00

Pull soundwire updates from Vinod Koul:

 - Constify sdw_bus and sdw_master_type objects

 - use of rtd helper for better code

 - intel aux device remove redundant assignment

* tag 'soundwire-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
  soundwire: Use snd_soc_substream_to_rtd() to obtain rtd
  soundwire: constify the struct device_type usage
  soundwire: bus_type: make sdw_bus_type const
  soundwire: intel_auxdevice: remove redundant assignment to variable link_flags
  soundwire: stream: add missing const to Documentation

soundwire: constify the struct device_type usage

2024-03-03T13:58:06+00:00

Since commit aed65af1cc2f ("drivers: make device_type const"), the driver
core can properly handle constant struct device_type. Move the
sdw_master_type and sdw_slave_type variables to be constant structures as
well, placing it into read-only memory which can not be modified at
runtime.

Cc: Greg Kroah-Hartman 
Signed-off-by: "Ricardo B. Marliere" 
Link: https://lore.kernel.org/r/20240219-device_cleanup-soundwire-v1-1-9edd51767611@marliere.net
Signed-off-by: Vinod Koul

soundwire: bus_type: make sdw_bus_type const

2024-02-16T12:02:00+00:00

Since commit d492cc2573a0 ("driver core: device.h: make struct
bus_type a const *"), the driver core can properly handle constant
struct bus_type, move the sdw_bus_type variable to be a constant
structure as well, placing it into read-only memory which can not be
modified at runtime.

Cc: Greg Kroah-Hartman 
Suggested-by: Greg Kroah-Hartman 
Signed-off-by: "Ricardo B. Marliere" 
Reviewed-by: Greg Kroah-Hartman 
Link: https://lore.kernel.org/r/20240213-bus_cleanup-soundwire-v1-1-3878b00f6f57@marliere.net
Signed-off-by: Vinod Koul

soundwire: amd: refactor register mask structure

2024-01-30T16:06:36+00:00

Register mask array structure is no longer needed as except interrupt
control masks, rest of the register masks are not used in code.
Use array for interrupt masks instead of structure.

Signed-off-by: Vijendar Mukunda 
Acked-by: Vinod Koul 
Link: https://msgid.link/r/20240129055147.1493853-7-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown

soundwire: amd: implement function to extract slave information

2024-01-30T16:06:35+00:00

Implement function to extract slaves information connected on the bus.
This information is required during machine select logic.
This function will be called from machine select logic code.

Signed-off-by: Vijendar Mukunda 
Acked-by: Vinod Koul 
Link: https://msgid.link/r/20240129055147.1493853-5-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown

soundwire: amd: refactor amd soundwire manager device node creation

2024-01-30T16:06:34+00:00

Refactor amd SoundWire manager device node creation logic and implement
generic functions to have a common functionality for SoundWire manager
platform device creation, start and exit sequence for both legacy(NO DSP)
and SOF stack for AMD platforms. These functions will be invoked from
legacy and SOF stack.

Signed-off-by: Vijendar Mukunda 
Acked-by: Vinod Koul 
Link: https://msgid.link/r/20240129055147.1493853-4-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown

soundwire: amd: update license

2024-01-30T16:06:33+00:00

Update license to dual license to align with Sound Open Firmware (SOF)
driver as SOF uses dual license.

Signed-off-by: Vijendar Mukunda 
Acked-by: Vinod Koul 
Link: https://msgid.link/r/20240129055147.1493853-3-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown

ASoC/soundwire: implement generic api for scanning amd soundwire controller

2024-01-30T16:06:32+00:00

Implement generic function for scanning SoundWire controller.
Same function will be used for legacy and sof stack for AMD platforms.

Signed-off-by: Vijendar Mukunda 
Acked-by: Vinod Koul 
Link: https://msgid.link/r/20240129055147.1493853-2-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown

soundwire: bus: introduce controller_id

2023-11-24T06:54:37+00:00

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 
Reviewed-by: Vijendar Mukunda 
Signed-off-by: Pierre-Louis Bossart 
Reviewed-by: Krzysztof Kozlowski 
Tested-by: Krzysztof Kozlowski 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/stable/20231017160933.12624-2-pierre-louis.bossart%40linux.intel.com
Tested-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20231017160933.12624-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: stream: constify sdw_port_config when adding devices

2023-11-23T07:16:20+00:00

sdw_stream_add_master() and sdw_stream_add_slave() do not modify
contents of passed sdw_port_config, so it can be made const for code
safety and as documentation of expected usage.

Signed-off-by: Krzysztof Kozlowski 
Reviewed-by: Pierre-Louis Bossart 
Link: https://lore.kernel.org/r/20231120174720.239610-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Vinod Koul