[PATCH 4.19 52/74] mmc: mediatek: fix incorrect register setting of hs400_cmd_int_delay

[Greg Kroah-Hartman]

4.19-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Chaotian Jing <chaotian.jing@xxxxxxxxxxxx>

commit 3751e008da0df4384031bd66a516c0292f915605 upstream.

to set cmd internal delay, need set PAD_TUNE register but not PAD_CMD_TUNE
register.

Signed-off-by: Chaotian Jing <chaotian.jing@xxxxxxxxxxxx>
Fixes: 1ede5cb88a29 ("mmc: mediatek: Use data tune for CMD line tune")
Cc: stable@xxxxxxxxxxxxxxx # v4.12+
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/mmc/host/mtk-sd.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/mmc/host/mtk-sd.c
+++ b/drivers/mmc/host/mtk-sd.c
@@ -784,7 +784,7 @@ static void msdc_set_mclk(struct msdc_ho
 
 	if (timing == MMC_TIMING_MMC_HS400 &&
 	    host->dev_comp->hs400_tune)
-		sdr_set_field(host->base + PAD_CMD_TUNE,
+		sdr_set_field(host->base + tune_reg,
 			      MSDC_PAD_TUNE_CMDRRDLY,
 			      host->hs400_cmd_int_delay);
 	dev_dbg(host->dev, "sclk: %d, timing: %d\n", host->sclk, timing);