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    Subject[PATCH v6 04/12] mmc: mediatek: make hs400_tune_response only for mt8173
    Date
    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.jing@mediatek.com>
    ---
    drivers/mmc/host/mtk-sd.c | 11 +++++++++--
    1 file changed, 9 insertions(+), 2 deletions(-)

    diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
    index 643c795..ab2fbbb 100644
    --- a/drivers/mmc/host/mtk-sd.c
    +++ b/drivers/mmc/host/mtk-sd.c
    @@ -300,6 +300,7 @@ struct msdc_save_para {

    struct mtk_mmc_compatible {
    u8 clk_div_bits;
    + bool hs400_tune; /* only used for MT8173 */
    };

    struct msdc_tune_para {
    @@ -360,18 +361,22 @@ struct msdc_host {

    static const struct mtk_mmc_compatible mt8135_compat = {
    .clk_div_bits = 8,
    + .hs400_tune = false,
    };

    static const struct mtk_mmc_compatible mt8173_compat = {
    .clk_div_bits = 8,
    + .hs400_tune = true,
    };

    static const struct mtk_mmc_compatible mt2701_compat = {
    .clk_div_bits = 12,
    + .hs400_tune = false,
    };

    static const struct mtk_mmc_compatible mt2712_compat = {
    .clk_div_bits = 12,
    + .hs400_tune = false,
    };

    static const struct of_device_id msdc_of_ids[] = {
    @@ -666,7 +671,8 @@ 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 &&
    + host->dev_comp->hs400_tune)
    sdr_set_field(host->base + PAD_CMD_TUNE,
    MSDC_PAD_TUNE_CMDRRDLY,
    host->hs400_cmd_int_delay);
    @@ -1594,7 +1600,8 @@ 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 &&
    + host->dev_comp->hs400_tune)
    ret = hs400_tune_response(mmc, opcode);
    else
    ret = msdc_tune_response(mmc, opcode);
    --
    1.8.1.1.dirty
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