diff mbox series

[05/10] soundwire: stream: don't abort bank switch on Command_Ignored/-ENODATA

Message ID 20210714032209.11284-6-yung-chuan.liao@linux.intel.com (mailing list archive)
State New, archived
Headers show
Series soundwire/ASoC: add mockup codec support | expand

Commit Message

Bard Liao July 14, 2021, 3:22 a.m. UTC 
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>
---
 drivers/soundwire/stream.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

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;
 	}