mmc: mediatek: fix incorrect register setting of hs400_cmd_int_delay

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>

diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
index 04841386b65da4b474e8b30afe9872a727eac902..f171cce5197de6d6d84f523623e5de90ef20100c 100644 (file)
--- 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_host *host, unsigned char timing, u32 hz)
 
        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);