linux-kernel - [PATCH AUTOSEL 4.9 14/38] soc: fsl: qe: Fix copy/paste bug in ucc_get_tdm_sync

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Message-Id: <20181016041522.135789-14-sashal@kernel.org>
Date:   Tue, 16 Oct 2018 00:14:58 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     stable@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Zhao Qiang <qiang.zhao@....com>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        Li Yang <leoyang.li@....com>, Olof Johansson <olof@...om.net>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH AUTOSEL 4.9 14/38] soc: fsl: qe: Fix copy/paste bug in ucc_get_tdm_sync_shift()

From: Zhao Qiang <qiang.zhao@....com>

[ Upstream commit 96fc74333f84cfdf8d434c6c07254e215e2aad00 ]

There is a copy and paste bug so we accidentally use the RX_ shift when
we're in TX_ mode.

Fixes: bb8b2062aff3 ("fsl/qe: setup clock source for TDM mode")
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Signed-off-by: Zhao Qiang <qiang.zhao@....com>
Signed-off-by: Li Yang <leoyang.li@....com>
(cherry picked from commit 3cb31b634052ed458922e0c8e2b4b093d7fb60b9)
Signed-off-by: Olof Johansson <olof@...om.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/soc/fsl/qe/ucc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soc/fsl/qe/ucc.c b/drivers/soc/fsl/qe/ucc.c
index c646d8713861..681f7d4b7724 100644
--- a/drivers/soc/fsl/qe/ucc.c
+++ b/drivers/soc/fsl/qe/ucc.c
@@ -626,7 +626,7 @@ static u32 ucc_get_tdm_sync_shift(enum comm_dir mode, u32 tdm_num)
 {
 	u32 shift;
 
-	shift = (mode == COMM_DIR_RX) ? RX_SYNC_SHIFT_BASE : RX_SYNC_SHIFT_BASE;
+	shift = (mode == COMM_DIR_RX) ? RX_SYNC_SHIFT_BASE : TX_SYNC_SHIFT_BASE;
 	shift -= tdm_num * 2;
 
 	return shift;
-- 
2.17.1