From: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com
SoundWire mockup devices don't take part in the command/control protocol, so all commands will complete with -ENODATA or Command_Ignored results. With a flag, we can suppress such errors in the bus management and make it appear as if all read/writes succeed.
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Rander Wang rander.wang@intel.com Signed-off-by: Bard Liao yung-chuan.liao@linux.intel.com --- include/linux/soundwire/sdw.h | 3 +++ sound/soc/codecs/sdw-mockup.c | 2 ++ 2 files changed, 5 insertions(+)
diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h index a48ac3e77301..76ce3f3ac0f2 100644 --- a/include/linux/soundwire/sdw.h +++ b/include/linux/soundwire/sdw.h @@ -661,6 +661,8 @@ struct sdw_slave_ops { * initialized * @first_interrupt_done: status flag tracking if the interrupt handling * for a Slave happens for the first time after enumeration + * @is_mockup_device: status flag used to squelch errors in the command/control + * protocol for SoundWire mockup devices */ struct sdw_slave { struct sdw_slave_id id; @@ -683,6 +685,7 @@ struct sdw_slave { struct completion initialization_complete; u32 unattach_request; bool first_interrupt_done; + bool is_mockup_device; };
#define dev_to_sdw_dev(_dev) container_of(_dev, struct sdw_slave, dev) diff --git a/sound/soc/codecs/sdw-mockup.c b/sound/soc/codecs/sdw-mockup.c index a4f79eb2c69d..8ea13cfa9f8e 100644 --- a/sound/soc/codecs/sdw-mockup.c +++ b/sound/soc/codecs/sdw-mockup.c @@ -263,6 +263,8 @@ static int sdw_mockup_sdw_probe(struct sdw_slave *slave, dev_set_drvdata(dev, sdw_mockup); sdw_mockup->slave = slave;
+ slave->is_mockup_device = true; + ret = devm_snd_soc_register_component(dev, &snd_soc_sdw_mockup_component, sdw_mockup_dai,