Changes in sysfs-bus-soundwire-slave

ccfdcb32 - ABI: sysfs-bus-soundwire-slave: use wildcards on What definitions

Thu, 16 Sep 2021 08:59:43 +0000

ABI: sysfs-bus-soundwire-slave: use wildcards on What definitionsAn "N" upper letter is not a wildcard, nor can easily be identifiedby script, specially since the USB sysfs define things like.bNumInterfaces. Use, instead, , in order to let script/get_abi.plto convert it into a Regex.Signed-off-by: Mauro Carvalho Chehab Reviewed-by: Pierre-Louis Bossart Link: https://lore.kernel.org/r/416f4a746c116147abb08fb0155a6a4ed065dfd7.1631782432.git.mchehab+huawei@kernel.orgSigned-off-by: Vinod Koul List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-soundwire-slave

c5c0c4ea - ABI: sysfs-bus-soundwire-slave: use wildcards on What definitions

Thu, 16 Sep 2021 08:59:43 +0000

ABI: sysfs-bus-soundwire-slave: use wildcards on What definitionsAn "N" upper letter is not a wildcard, nor can easily be identifiedby script, specially since the USB sysfs define things like.bNumInterfaces. Use, instead, , in order to let script/get_abi.plto convert it into a Regex.Reviewed-by: Pierre-Louis Bossart Signed-off-by: Mauro Carvalho Chehab Link: https://lore.kernel.org/r/416f4a746c116147abb08fb0155a6a4ed065dfd7.1631782432.git.mchehab+huawei@kernel.orgSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-soundwire-slave

0173f525 - soundwire: sysfs: add slave status and device number before probe

Thu, 24 Sep 2020 19:44:30 +0000

soundwire: sysfs: add slave status and device number before probeThe MIPI DisCo device properties that are read by the driver fromplatform firmware, or hard-coded in the driver, should only beprovided as sysfs entries when a driver probes successfully.However the device status and device number is updated even when thereis no driver present, and hence can be updated when a Slave device isdetected on the bus without being described in platform firmware andwithout any driver registered/probed.As suggested by GregKH, the attribute group for Slave status anddevice number is is added by default upon device registration.Credits to Vinod Koul for the status_show() function, shared in aseparate patch and used as is here. The status table was modified toremove an unnecessary enum and status_show() is handled in a differentgroup attribute than what was suggested by Vinod.Tested-by: Srinivas Kandgatla Signed-off-by: Pierre-Louis Bossart Co-developed-by: Vinod Koul Reviewed-by: Greg Kroah-Hartman Link: https://lore.kernel.org/r/20200924194430.121058-3-pierre-louis.bossart@linux.intel.comSigned-off-by: Vinod Koul List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-soundwire-slave

bcac5902 - soundwire: add Slave sysfs support

Mon, 18 May 2020 20:35:51 +0000

soundwire: add Slave sysfs supportExpose MIPI DisCo Slave properties in sysfs.For Slave properties and Data Port 0, the attributes are managed withsimple devm_ support.A Slave Device may have more than one Data Port (DPN), and each DataPort can be sink or source. The attributes are created dynamicallyusing pre-canned macros, but still use devm_ with a name attributegroup to avoid creating kobjects - as requested by GregKH. In the_show function, we use container_of() to retrieve port number anddirection required to extract the information.Audio modes are not supported for now. Depending on the discussionsthe SoundWire Device Class, we may add it later as is or follow thenew 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.comSigned-off-by: Vinod Koul List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-soundwire-slave