[PATCH 4.20 56/80] mmc: mediatek: fix incorrect register setting of hs400_cmd_int_delay

Greg Kroah-Hartman
2019-02-04T10:53:52Z

From: Chaotian Jing <chaotian.jing@mediatek.com>

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@mediatek.com>
Fixes: 1ede5cb88a29 ("mmc: mediatek: Use data tune for CMD line tune")
Cc: stable@vger.kernel.org # v4.12+
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
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
@@ -846,7 +846,7 @@ 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->mmc->actual_clock,