soundwire: cadence_master: log more useful information during timeouts

Add the type of command, device number, register offset and length to reverse engineer what caused the issue. Signed-off-by: Pierre-Louis Bossart <[email protected]>
plbossart · Dec 9, 2019 · 2dce0b8 · 2dce0b8
1 parent 1861825
commit 2dce0b8
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/drivers/soundwire/cadence_master.c b/drivers/soundwire/cadence_master.c
@@ -464,7 +464,8 @@ _cdns_xfer_msg(struct sdw_cdns *cdns, struct sdw_msg *msg, int cmd,
 	time = wait_for_completion_timeout(&cdns->tx_complete,
 					   msecs_to_jiffies(CDNS_TX_TIMEOUT));
 	if (!time) {
-		dev_err(cdns->dev, "IO transfer timed out\n");
+		dev_err(cdns->dev, "IO transfer timed out, cmd %d device %d addr %x len %d\n",
+			cmd, msg->dev_num, msg->addr, msg->len);
 		msg->len = 0;
 		return SDW_CMD_TIMEOUT;
 	}