[PATCH] soundwire: cadence: Write to correct address for each FIFO chunk

Richard Fitzgerald
2022-09-17T12:35:50Z

_cdns_xfer_msg() must add the fragment offset to msg->addr to get the
base target address of each FIFO chunk. Otherwise every chunk will
be written to the first 32 register addresses.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
---
drivers/soundwire/cadence_master.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soundwire/cadence_master.c b/drivers/soundwire/cadence_master.c
index 3ef472049980..ca241bbeadd9 100644
--- a/drivers/soundwire/cadence_master.c
+++ b/drivers/soundwire/cadence_master.c
@@ -569,7 +569,7 @@ _cdns_xfer_msg(struct sdw_cdns *cdns, struct sdw_msg *msg, int cmd,
}

base = CDNS_MCP_CMD_BASE;
- addr = msg->addr;
+ addr = msg->addr + offset;

for (i = 0; i < count; i++) {
data = FIELD_PREP(CDNS_MCP_CMD_DEV_ADDR, msg->dev_num);
--
2.30.2