the origin design of hs400_tune_response is for mt8173 because of
mt8173 has a special design. for doing that, we add a new member
"compatible", by now it's only for mt8173.

Signed-off-by: Chaotian Jing <chaotian.j...@mediatek.com>
---
 drivers/mmc/host/mtk-sd.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
index 643c795..e8f8ad9 100644
--- a/drivers/mmc/host/mtk-sd.c
+++ b/drivers/mmc/host/mtk-sd.c
@@ -317,6 +317,7 @@ struct msdc_delay_phase {
 struct msdc_host {
        struct device *dev;
        const struct mtk_mmc_compatible *dev_comp;
+       const char *compatible;
        struct mmc_host *mmc;   /* mmc structure */
        int cmd_rsp;
 
@@ -666,7 +667,8 @@ static void msdc_set_mclk(struct msdc_host *host, unsigned 
char timing, u32 hz)
                       host->base + PAD_CMD_TUNE);
        }
 
-       if (timing == MMC_TIMING_MMC_HS400)
+       if (timing == MMC_TIMING_MMC_HS400 &&
+           !strcmp(host->compatible, "mediatek,mt8173-mmc"))
                sdr_set_field(host->base + PAD_CMD_TUNE,
                              MSDC_PAD_TUNE_CMDRRDLY,
                              host->hs400_cmd_int_delay);
@@ -1594,7 +1596,8 @@ static int msdc_execute_tuning(struct mmc_host *mmc, u32 
opcode)
        struct msdc_host *host = mmc_priv(mmc);
        int ret;
 
-       if (host->hs400_mode)
+       if (host->hs400_mode &&
+           !strcmp(host->compatible, "mediatek,mt8173-mmc"))
                ret = hs400_tune_response(mmc, opcode);
        else
                ret = msdc_tune_response(mmc, opcode);
@@ -1745,6 +1748,7 @@ static int msdc_drv_probe(struct platform_device *pdev)
 
        host->dev = &pdev->dev;
        host->dev_comp = of_id->data;
+       host->compatible = of_id->compatible;
        host->mmc = mmc;
        host->src_clk_freq = clk_get_rate(host->src_clk);
        /* Set host parameters to mmc */
-- 
1.8.1.1.dirty

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