linux.git/include/linux/soundwire, branch v5.5

soundwire: remove bitfield for unique_id, use u8

2019-11-09T11:16:56+00:00

There is no good reason why the unique_id needs to be stored as 4
bits. The code will work without changes with a u8 since all values
are already filtered while parsing the ACPI tables and Slave devID
registers.

Use u8 representation. This will allow us to encode a
"IGNORE_UNIQUE_ID" value to account for firmware/BIOS creativity.

Signed-off-by: Pierre-Louis Bossart 
Link: https://lore.kernel.org/r/20191022234808.17432-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: remove DAI_ID_RANGE definitions

2019-10-21T04:20:53+00:00

There is no reason to reserve a range of DAI IDs for SoundWire. This
is not scalable and it's better to let the ASoC core allocate the
dai->id when registering a component.

Signed-off-by: Pierre-Louis Bossart 
Link: https://lore.kernel.org/r/20190916192348.467-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: stream: make stream name a const pointer

2019-09-04T09:27:28+00:00

Make stream name const pointer

Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20190813083550.5877-3-srinivas.kandagatla@linaro.org
Signed-off-by: Vinod Koul

soundwire: Add compute_params callback

2019-09-04T09:27:19+00:00

This callback allows masters to compute the bus parameters required.

Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20190813083550.5877-2-srinivas.kandagatla@linaro.org
Signed-off-by: Vinod Koul

soundwire: intel: handle disabled links

2019-08-23T06:32:56+00:00

On most hardware platforms, SoundWire interfaces are pin-muxed with
other interfaces (typically DMIC or I2S) and the status of each link
needs to be checked at boot time.

For Intel platforms, the BIOS provides a menu to enable/disable the
links separately, and the information is provided to the OS with an
Intel-specific _DSD property. The same capability will be added to
revisions of the MIPI DisCo specification.

Signed-off-by: Pierre-Louis Bossart 
Link: https://lore.kernel.org/r/20190821185821.12690-5-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: add debugfs support

2019-08-23T06:31:02+00:00

Add base debugfs mechanism for SoundWire bus by creating soundwire
root and master-N and slave-x hierarchy.

Also add SDW Slave SCP, DP0 and DP-N register debug file.

Registers not implemented will print as "XX"

Credits: this patch is based on an earlier internal contribution by
Vinod Koul, Sanyog Kale, Shreyas Nc and Hardik Shah.

Reviewed-by: Greg Kroah-Hartman 
Acked-by: Sanyog Kale 
Signed-off-by: Pierre-Louis Bossart 
Link: https://lore.kernel.org/r/20190821185821.12690-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: add new mclk_freq field for properties

2019-08-21T09:06:01+00:00

To help pass platform-specific values, add a new field that can either
be set by the Master driver or read from firmware (BIOS/DT).

Signed-off-by: Pierre-Louis Bossart 
Link: https://lore.kernel.org/r/20190806005522.22642-11-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: include mod_devicetable.h to avoid compiling warnings

2019-08-21T09:06:01+00:00

When integrating SoundWire, kbuild throws this warning with randconfig:

>> include/linux/soundwire/sdw.h:571:17: warning: 'struct
   sdw_device_id' declared inside parameter list will not be visible
   outside of this definition or declaration

       const struct sdw_device_id *id);
                    ^~~~~~~~~~~~~

Fix by adding the relevant include

Reported-by: kbuild test robot 
Signed-off-by: Bard liao 
Signed-off-by: Pierre-Louis Bossart 
Link: https://lore.kernel.org/r/20190806005522.22642-8-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: intel: prevent possible dereference in hw_params

2019-08-21T09:06:01+00:00

This should not happen in production systems but we should test for
all callback arguments before invoking the config_stream callback.

Update the prototype to clarify that the first argument is mandatory.

Also use local variable instead of multiple dereferences to improve
readability.

Signed-off-by: Pierre-Louis Bossart 
Link: https://lore.kernel.org/r/20190806005522.22642-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: add module_sdw_driver helper macro

2019-07-01T06:22:43+00:00

This Helper macro is for SoundWire drivers which do not do anything special in
module init/exit. This eliminates a lot of boilerplate. Each module may only
use this macro once, and calling it replaces module_init() and module_exit()

Signed-off-by: Srinivas Kandagatla 
Signed-off-by: Vinod Koul