From: Pierre-Louis Bossart Date: Wed, 14 Jul 2021 03:22:05 +0000 (+0800) Subject: soundwire: add flag to ignore all command/control for mockup devices X-Git-Tag: libata-5.15-2021-09-05~50^2~5^2~8 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=4a7a603cad3f667fb02e194c0a3412d3a7292093;p=linux-2.6-block.git soundwire: add flag to ignore all command/control for mockup devices 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 Reviewed-by: Rander Wang Signed-off-by: Bard Liao Link: https://lore.kernel.org/r/20210714032209.11284-7-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul --- 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,