Commit 7fae3cfb authored by Pierre-Louis Bossart's avatar Pierre-Louis Bossart Committed by Vinod Koul
Browse files

soundwire: bus: squelch error returned by mockup devices 



All read and writes from/to SoundWire mockup devices will return
-ENODATA/Command_Ignored, this patch forces a Command_OK result to let
the bus perform the required configurations, e.g. for the Data Ports,
which will only have an effect on the Master side.

Signed-off-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: default avatarRander Wang <rander.wang@intel.com>
Signed-off-by: default avatarBard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20210714032209.11284-8-yung-chuan.liao@linux.intel.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 4a7a603c

drivers/soundwire/bus.c

+8 −2
Original line number Diff line number Diff line
@@ -390,7 +390,10 @@ sdw_nread_no_pm(struct sdw_slave *slave, u32 addr, size_t count, u8 *val) 
	if (ret < 0)

		return ret;



	return sdw_transfer(slave->bus, &msg);

	ret = sdw_transfer(slave->bus, &msg);

	if (slave->is_mockup_device)

		ret = 0;

	return ret;

}



static int
@@ -404,7 +407,10 @@ sdw_nwrite_no_pm(struct sdw_slave *slave, u32 addr, size_t count, const u8 *val) 
	if (ret < 0)

		return ret;



	return sdw_transfer(slave->bus, &msg);

	ret = sdw_transfer(slave->bus, &msg);

	if (slave->is_mockup_device)

		ret = 0;

	return ret;

}



int sdw_write_no_pm(struct sdw_slave *slave, u32 addr, u8 value)