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Commit 7f3d5852 authored by Chaotian Jing's avatar Chaotian Jing Committed by Ulf Hansson
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mmc: mediatek: make hs400_tune_response only for mt8173 



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: default avatarChaotian Jing <chaotian.jing@mediatek.com>
Tested-by: default avatarSean Wang <sean.wang@mediatek.com>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 689362b3

drivers/mmc/host/mtk-sd.c

+9 −2
Original line number Original line Diff line number Diff line
@@ -300,6 +300,7 @@ struct msdc_save_para { 




struct mtk_mmc_compatible {

struct mtk_mmc_compatible {

	u8 clk_div_bits;

	u8 clk_div_bits;

	bool hs400_tune; /* only used for MT8173 */

};

};





struct msdc_tune_para {

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




static const struct mtk_mmc_compatible mt8135_compat = {

static const struct mtk_mmc_compatible mt8135_compat = {

	.clk_div_bits = 8,

	.clk_div_bits = 8,

	.hs400_tune = false,

};

};





static const struct mtk_mmc_compatible mt8173_compat = {

static const struct mtk_mmc_compatible mt8173_compat = {

	.clk_div_bits = 8,

	.clk_div_bits = 8,

	.hs400_tune = true,

};

};





static const struct mtk_mmc_compatible mt2701_compat = {

static const struct mtk_mmc_compatible mt2701_compat = {

	.clk_div_bits = 12,

	.clk_div_bits = 12,

	.hs400_tune = false,

};

};





static const struct mtk_mmc_compatible mt2712_compat = {

static const struct mtk_mmc_compatible mt2712_compat = {

	.clk_div_bits = 12,

	.clk_div_bits = 12,

	.hs400_tune = false,

};

};





static const struct of_device_id msdc_of_ids[] = {

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);

		       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,

		sdr_set_field(host->base + PAD_CMD_TUNE,

			      MSDC_PAD_TUNE_CMDRRDLY,

			      MSDC_PAD_TUNE_CMDRRDLY,

			      host->hs400_cmd_int_delay);

			      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);

	struct msdc_host *host = mmc_priv(mmc);

	int ret;

	int ret;





	if (host->hs400_mode)

	if (host->hs400_mode &&

	    host->dev_comp->hs400_tune)

		ret = hs400_tune_response(mmc, opcode);

		ret = hs400_tune_response(mmc, opcode);

	else

	else

		ret = msdc_tune_response(mmc, opcode);

		ret = msdc_tune_response(mmc, opcode);