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mmc: mediatek: make hs400_tune_response only for mt8173

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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>
Tested-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Chaotian Jing 2017-10-16 09:46:31 +08:00 committed by Ulf Hansson
parent 689362b3c9
commit 7f3d58523d
1 changed files with 9 additions and 2 deletions
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11
drivers/mmc/host/mtk-sd.c
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@ -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);