[PATCH 4.19 193/421] fsi/sbefifo: Clean up correct FIFO when receiving reset request from SBE

Greg Kroah-Hartman
2021-07-19T16:17:43Z

From: Joachim Fenkes <FENKES@de.ibm.com>

[ Upstream commit 95152433e46fdb36652ebdbea442356a16ae1fa6 ]

When the SBE requests a reset via the down FIFO, that is also the
FIFO we should go and reset ;)

Fixes: 9f4a8a2d7f9d ("fsi/sbefifo: Add driver for the SBE FIFO")
Signed-off-by: Joachim Fenkes <FENKES@de.ibm.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20200724071518.430515-2-joel@jms.id.au
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/fsi/fsi-sbefifo.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/fsi/fsi-sbefifo.c b/drivers/fsi/fsi-sbefifo.c
index 9fa3959e0855..b43c2d424d00 100644
--- a/drivers/fsi/fsi-sbefifo.c
+++ b/drivers/fsi/fsi-sbefifo.c
@@ -400,7 +400,7 @@ static int sbefifo_cleanup_hw(struct sbefifo *sbefifo)
/* The FIFO already contains a reset request from the SBE ? */
if (down_status & SBEFIFO_STS_RESET_REQ) {
dev_info(dev, "Cleanup: FIFO reset request set, resetting\n");
- rc = sbefifo_regw(sbefifo, SBEFIFO_UP, SBEFIFO_PERFORM_RESET);
+ rc = sbefifo_regw(sbefifo, SBEFIFO_DOWN, SBEFIFO_PERFORM_RESET);
if (rc) {
sbefifo->broken = true;
dev_err(dev, "Cleanup: Reset reg write failed, rc=%d\n", rc);
--
2.30.2