kernel/linux.git/include/linux/soundwire/sdw.h, branch v5.4.168

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: rename/clarify MIPI DisCo properties

2019-05-27T05:23:00+00:00

The existing definitions are ambiguous and possibly misleading. For DP0, 'flow-control' is only relevant for the BRA protocol and should not be confused with async modes explicitly not supported for DP0, add prefix to follow MIPI DisCo definition The use of 'device_interrupts' is also questionable. The MIPI SoundWire spec defines Slave-, DP0- and DPN-level implementation-defined interrupts. Using the 'device' prefix in the last two cases is misleading, not only is the term 'device' overloaded but these properties are only valid at the DP0 and DPn levels. Rename to follow the MIPI definitions, no need to be creative here. Signed-off-by: Pierre-Louis Bossart Signed-off-by: Vinod Koul

soundwire: clarify comment

2019-05-27T05:23:00+00:00

The MIPI DisCo spec refers to dynamic frame shape, not to dynamic shape. Clarify. Signed-off-by: Pierre-Louis Bossart Signed-off-by: Vinod Koul

soundwire: mipi-disco: fix clock stop modes

2019-05-27T05:23:00+00:00

Fix support for clock_stop_mode0 and 1. The existing code uses a bitmask between enums, one of which being zero. Or-ing with zero is not very useful in general...Fix by or-ing with a BIT dependent on the enum value. Signed-off-by: Pierre-Louis Bossart Signed-off-by: Vinod Koul

soundwire: rename 'freq' fields

2019-05-27T05:23:00+00:00

Rename all fields with 'freq' as 'clk_freq' to follow the MIPI specification and avoid confusion between bus clock and audio clocks. No functionality change. Signed-off-by: Pierre-Louis Bossart Signed-off-by: Vinod Koul