linux-kernel - [PATCH 4.19 52/74] mmc: mediatek: fix incorrect register setting of hs400_cmd_int

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Date:   Mon,  4 Feb 2019 11:37:05 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Chaotian Jing <chaotian.jing@...iatek.com>,
        Ulf Hansson <ulf.hansson@...aro.org>
Subject: [PATCH 4.19 52/74] mmc: mediatek: fix incorrect register setting of hs400_cmd_int_delay

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

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

From: Chaotian Jing <chaotian.jing@...iatek.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@...iatek.com>
Fixes: 1ede5cb88a29 ("mmc: mediatek: Use data tune for CMD line tune")
Cc: stable@...r.kernel.org # v4.12+
Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.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
@@ -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);