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authorBard Liao <yung-chuan.liao@linux.intel.com>2021-07-14 11:22:04 +0800
committerVinod Koul <vkoul@kernel.org>2021-08-02 11:08:22 +0530
commite6645314eb2747bef4d9a375997221dede8ce4ce (patch)
tree5bb936b6dc53c0f751d23f8f2d44c9c8127ccb28 /drivers/soundwire
parent13a5635632af61853e874f9daeffd3f5e83daae5 (diff)
downloadlinux-e6645314eb2747bef4d9a375997221dede8ce4ce.tar.bz2
soundwire: stream: don't abort bank switch on Command_Ignored/-ENODATA
This change is needed for support of mockup devices, which by construction will not provide any answer to a bank switch, but it's also legit for regular cases. If for some reason a device loses sync and cannot handle a bank switch, we should go ahead anyways. The devices can always resync later. The only case where the error flow should be used is when there is a Command_Aborted composite answer from SoundWire devices. Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Link: https://lore.kernel.org/r/20210714032209.11284-6-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/soundwire')
-rw-r--r--drivers/soundwire/stream.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c
index 1a18308f4ef4..d84aaf115c13 100644
--- a/drivers/soundwire/stream.c
+++ b/drivers/soundwire/stream.c
@@ -697,7 +697,7 @@ static int sdw_bank_switch(struct sdw_bus *bus, int m_rt_count)
else
ret = sdw_transfer(bus, wr_msg);
- if (ret < 0) {
+ if (ret < 0 && ret != -ENODATA) {
dev_err(bus->dev, "Slave frame_ctrl reg write failed\n");
goto error;
}