linux/drivers/soundwire/Makefile, branch v6.4

soundwire: amd: enable build for AMD SoundWire manager driver

2023-04-12T10:00:36Z

Enable build for SoundWire manager driver for AMD platforms. Signed-off-by: Vijendar Mukunda Reviewed-by: Pierre-Louis Bossart Link: https://lore.kernel.org/lkml/20230220100418.76754-5-Vijendar.Mukunda@amd.com Link: https://lore.kernel.org/r/20230321050901.115439-5-Vijendar.Mukunda@amd.com Signed-off-by: Vinod Koul

soundwire: intel: move bus common sequences to different file

2023-03-15T13:54:02Z

Now that the bus start/stop/clock_stop sequences use the ops, we can move them to a different file to reuse them. Note that we could in theory remove the abstraction for all those sequences and directly call the functions in intel_auxdevice.c. To allow for more flexibility and have means to special-case new platforms, we decided to keep the abstraction. If in time it becomes clear there is no benefit the abstraction will be simplified. Signed-off-by: Pierre-Louis Bossart Reviewed-by: Rander Wang Signed-off-by: Bard Liao Link: https://lore.kernel.org/r/20230314015410.487311-9-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul

soundwire: intel: split auxdevice to different file

2022-11-23T14:41:49Z

The auxdevice layer is completely generic, it should be split from intel.c which is only geared to the 'cnl' hw_ops now. Signed-off-by: Pierre-Louis Bossart Reviewed-by: Rander Wang Signed-off-by: Bard Liao Link: https://lore.kernel.org/r/20221111013135.38289-8-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul

soundwire: Intel: introduce DMI quirks for HP Spectre x360 Convertible

2021-03-22T12:03:10Z

HP Spectre x360 Convertible devices expose invalid _ADR fields in the DSDT, which prevents codec drivers from probing. A possible solution is to override the DSDT, but that's just too painful for users. This patch suggests a simple DMI-based quirk to remap the existing invalid ADR information into valid ones. BugLink: https://github.com/thesofproject/linux/issues/2700 Co-developed-by: Bard Liao Signed-off-by: Bard Liao Signed-off-by: Pierre-Louis Bossart Reviewed-by: Rander Wang Reviewed-by: Guennadi Liakhovetski Link: https://lore.kernel.org/r/20210302075105.11515-3-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul

soundwire: Add generic bandwidth allocation algorithm

2020-09-18T12:18:51Z

This algorithm computes bus parameters like clock frequency, frame shape and port transport parameters based on active stream(s) running on the bus. Developers can also implement their own .compute_params() callback for specific resource management algorithm, and set if before calling sdw_add_bus_master() Credits: this patch is based on an earlier internal contribution by Vinod Koul, Sanyog Kale, Shreyas Nc and Hardik Shah. All hard-coded values were removed from the initial contribution to use BIOS information instead. Signed-off-by: Bard Liao Acked-by: Jaroslav Kysela Link: https://lore.kernel.org/r/20200908131520.5712-1-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul

soundwire: Replace 'objs' by 'y'

2020-06-22T11:36:08Z

`-objs` is designed for building host programs, change to `-y`, more straightforward for device drivers. See Documentation/kbuild/makefiles.rst Signed-off-by: Vinod Koul Link: https://lore.kernel.org/r/20200616162140.2563535-1-vkoul@kernel.org Signed-off-by: Vinod Koul

soundwire: intel: use a single module

2020-05-20T13:54:55Z

It's not clear why we have two modules for the Intel controller/master support when there is a single Kconfig. This adds complexity for no good reason, the two parts need to work together anyways. Signed-off-by: Rander Wang Signed-off-by: Pierre-Louis Bossart Signed-off-by: Bard Liao Link: https://lore.kernel.org/r/20200519191903.6557-1-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul

soundwire: add Slave sysfs support

2020-05-20T11:52:41Z

Expose MIPI DisCo Slave properties in sysfs. For Slave properties and Data Port 0, the attributes are managed with simple devm_ support. A Slave Device may have more than one Data Port (DPN), and each Data Port can be sink or source. The attributes are created dynamically using pre-canned macros, but still use devm_ with a name attribute group to avoid creating kobjects - as requested by GregKH. In the _show function, we use container_of() to retrieve port number and direction required to extract the information. Audio modes are not supported for now. Depending on the discussions the SoundWire Device Class, we may add it later as is or follow the new specification. Signed-off-by: Pierre-Louis Bossart Signed-off-by: Bard Liao Reviewed-by: Greg Kroah-Hartman Link: https://lore.kernel.org/r/20200518203551.2053-4-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul

soundwire: bus_type: add sdw_master_device support

2020-05-19T07:14:35Z

In the existing SoundWire code, Master Devices are not explicitly represented - only SoundWire Slave Devices are exposed (the use of capital letters follows the SoundWire specification conventions). With the existing code, the bus is handled without using a proper device, and bus->dev typically points to a platform device. The right thing to do as discussed in multiple reviews is use a device for each bus. The sdw_master_device addition is done with minimal internal plumbing and not exposed externally. The existing API based on sdw_bus_master_add() and sdw_bus_master_delete() will deal with the sdw_master_device life cycle, which minimizes changes to existing drivers. Note that the Intel code will be modified in follow-up patches (no impact on any platform since the connection with ASoC is not supported upstream so far). Signed-off-by: Pierre-Louis Bossart Signed-off-by: Bard Liao Acked-by: Jaroslav Kysela Link: https://lore.kernel.org/r/20200518174322.31561-5-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul

soundwire: qcom: add support for SoundWire controller

2020-01-14T06:27:47Z

Qualcomm SoundWire Master controller is present in most Qualcomm SoCs either integrated as part of WCD audio codecs via slimbus or as part of SOC I/O. This patchset adds support to a very basic controller which has been tested with WCD934x SoundWire controller connected to WSA881x smart speaker amplifiers. Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20200113132153.27239-3-srinivas.kandagatla@linaro.org Signed-off-by: Vinod Koul