linux-stable.git/drivers/soundwire, branch v5.8

soundwire: intel: fix memory leak with devm_kasprintf

2020-06-22T11:45:20+00:00

The dais are allocated with devm_kcalloc() but their name isn't
resourced managed and never freed. Fix by also using devm_ for the dai
names as well.

Fixes: c46302ec554c5 ('soundwire: intel: Add audio DAI ops')
Signed-off-by: Pierre-Louis Bossart 
Reviewed-by: Daniel Baluta 
Reviewed-by: Kai Vehmanen 
Reviewed-by: Rander Wang 
Reviewed-by: Guennadi Liakhovetski 
Reviewed-by: Bard Liao 
Link: https://lore.kernel.org/r/20200617163536.17401-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: intel: use a single module

2020-05-20T13:54:55+00:00

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: fix spelling mistake

2020-05-20T11:59:37+00:00

Fix typo for paranoia spelled as paranioa

Fixes: bcac59029955 ("soundwire: add Slave sysfs support")
Signed-off-by: Vinod Koul

soundwire: fix trailing line in sysfs_slave.c

2020-05-20T11:57:45+00:00

Commit bcac59029955 ("soundwire: add Slave sysfs support") added
trailing line in file sysfs_slave.c, so remove it

Fixes: bcac59029955 ("soundwire: add Slave sysfs support")
Signed-off-by: Vinod Koul

soundwire: add Slave sysfs support

2020-05-20T11:52:41+00:00

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: master: add sysfs support

2020-05-20T11:52:36+00:00

Add the master properties as attributes. The description is directly
derived from the MIPI DisCo specification.

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

Signed-off-by: Pierre-Louis Bossart 
Signed-off-by: Bard Liao 
Link: https://lore.kernel.org/r/20200518203551.2053-3-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: disco: s/ch/channels/

2020-05-20T11:52:30+00:00

Use more meaningful member names in preparation for sysfs support.
No functionality change.

Signed-off-by: Pierre-Louis Bossart 
Signed-off-by: Bard Liao 
Link: https://lore.kernel.org/r/20200518203551.2053-2-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: master: add runtime pm support

2020-05-19T07:14:35+00:00

We need to enable runtime_pm on master device with generic helpers,
so that a Slave-initiated wake is propagated to the bus parent.

Signed-off-by: Bard Liao 
Acked-by: Jaroslav Kysela 
Link: https://lore.kernel.org/r/20200518174322.31561-6-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: bus_type: add sdw_master_device support

2020-05-19T07:14:35+00:00

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: bus: add unique bus id

2020-05-19T07:14:34+00:00

Adding an unique id for each bus.

Suggested-by: Vinod Koul 
Signed-off-by: Bard Liao 
Acked-by: Jaroslav Kysela 
Link: https://lore.kernel.org/r/20200518174322.31561-4-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul