kernel/linux.git/drivers/soundwire/stream.c, branch v4.19.16

soundwire: Fix acquiring bus lock twice during master release

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

As part of sdw_stream_remove_master(), sdw_stream_remove_slave() is called which results in bus lock being acquired twice. So, fix it by performing specific Slave remove operations in sdw_release_master_stream() instead of calling sdw_stream_remove_slave(). Signed-off-by: Sanyog Kale Signed-off-by: Shreyas NC Acked-by: Pierre-Louis Bossart Signed-off-by: Vinod Koul

soundwire: Fix incorrect exit after configuring stream

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

In sdw_stream_add_master() after the Master ports are configured, the stream is released incorrectly. So, fix it by avoiding stream release after configuring the Master for the stream. While at it, rename the label appropriately. Signed-off-by: Shreyas NC Acked-by: Pierre-Louis Bossart Signed-off-by: Vinod Koul

soundwire: Fix duplicate stream state assignment

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

For a SoundWire stream it is expected that a Slave is added to the stream before Master is added. So, move the stream state to CONFIGURED after the first Slave is added and remove the stream state assignment for Master add. Along with these changes, add additional comments to explain the same. Signed-off-by: Shreyas NC Acked-by: Pierre-Louis Bossart Signed-off-by: Vinod Koul

docs: Fix more broken references

2018-06-15T21:11:26+00:00

As we move stuff around, some doc references are broken. Fix some of them via this script: ./scripts/documentation-file-ref-check --fix Manually checked that produced results are valid. Acked-by: Matthias Brugger Acked-by: Takashi Iwai Acked-by: Jeff Kirsher Acked-by: Guenter Roeck Acked-by: Miguel Ojeda Signed-off-by: Mauro Carvalho Chehab Acked-by: Jonathan Corbet

soundwire: Add stream configuration APIs

2018-05-11T16:17:06+00:00

Add APIs for prepare, enable, disable and de-prepare stream. Signed-off-by: Sanyog Kale Signed-off-by: Shreyas NC 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