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soundwire: bus: squelch error returned by mockup devices

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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: 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>
Link: https://lore.kernel.org/r/20210714032209.11284-8-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Pierre-Louis Bossart 2021-07-14 11:22:06 +08:00 committed by Vinod Koul
parent 4a7a603cad
commit 7fae3cfb70
1 changed files with 8 additions and 2 deletions
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10
drivers/soundwire/bus.c
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@ -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)