kernel/git/stable/linux.git/drivers/soundwire/bus.h, branch linux-5.2.y

soundwire: fix alignment issues in header files

2019-05-02T15:16:26+00:00

use Linux style Reviewed-by: Takashi Iwai Signed-off-by: Pierre-Louis Bossart Signed-off-by: Greg Kroah-Hartman

soundwire: fix SPDX license for header files

2019-05-02T15:09:00+00:00

No C++ comments in .h files Reviewed-by: Takashi Iwai Signed-off-by: Pierre-Louis Bossart Signed-off-by: Greg Kroah-Hartman

soundwire: Add support for multi link bank switch

2018-08-27T04:19:48+00:00

In cases of multiple Masters in a stream, synchronization between multiple Master(s) is achieved by performing bank switch together and using Master methods. Add sdw_ml_bank_switch() to wait for completion of bank switch. Signed-off-by: Sanyog Kale Signed-off-by: Shreyas NC Acked-by: Pierre-Louis Bossart Signed-off-by: Vinod Koul

soundwire: Add support to lock across bus instances

2018-08-27T04:19:48+00:00

Currently, the stream concept is limited to single Master and one or more Codecs. This patch extends the concept to support multiple Master(s) sharing the same reference clock and synchronized in the hardware. Modify sdw_stream_runtime to support a list of sdw_master_runtime for the same. The existing reference to a single m_rt is removed in the next patch. Typically to lock, one would acquire a global lock and then lock bus instances. In this case, the caller framework(ASoC DPCM) guarantees that stream operations on a card are always serialized. So, there is no race condition and hence no need for global lock. Bus lock(s) are acquired to reconfigure the bus while the stream is set-up. So, we add sdw_acquire_bus_lock()/sdw_release_bus_lock() APIs which are used only to reconfigure the bus. Signed-off-by: Sanyog Kale Signed-off-by: Shreyas NC Acked-by: Pierre-Louis Bossart Signed-off-by: Vinod Koul

soundwire: Add bank switch routine

2018-05-11T16:17:05+00:00

SoundWire supports two registers banks. So, program the alternate bank with new configuration and then performs bank switch. Signed-off-by: Sanyog Kale Signed-off-by: Shreyas NC Signed-off-by: Vinod Koul

soundwire: Add helpers for ports operations

2018-05-11T16:17:05+00:00

Add helpers to configure, prepare, enable, disable and de-prepare ports. Signed-off-by: Sanyog Kale Signed-off-by: Shreyas NC Signed-off-by: Vinod Koul

soundwire: Add Master and Slave port programming

2018-05-11T16:17:04+00:00

Master and Slave port registers need to be programmed for each port used in a stream. Add the helpers for port register programming. Signed-off-by: Sanyog Kale Signed-off-by: Shreyas NC Signed-off-by: Vinod Koul

soundwire: Add support for port management

2018-05-11T16:17:04+00:00

Add Soundwire port data structures and APIS for initialization and release of ports. Signed-off-by: Sanyog Kale Signed-off-by: Shreyas NC Signed-off-by: Vinod Koul

soundwire: Add support for SoundWire stream management

2018-05-11T16:17:03+00:00

This patch adds APIs and relevant stream data structures for initialization and release of stream. Signed-off-by: Hardik T Shah Signed-off-by: Sanyog Kale Signed-off-by: Shreyas NC Signed-off-by: Vinod Koul

soundwire: Add slave status handling

2017-12-19T10:28:13+00:00

Add status handling API sdw_handle_slave_status() to handle Slave status changes. Signed-off-by: Hardik T Shah Signed-off-by: Sanyog Kale Reviewed-by: Philippe Ombredanne Acked-By: Pierre-Louis Bossart Reviewed-by: Takashi Iwai Signed-off-by: Vinod Koul Signed-off-by: Greg Kroah-Hartman