From bc70c7f1174b937af2784977281a1567f69dd2b6 Mon Sep 17 00:00:00 2001 From: Chaotian Jing Date: Mon, 16 Oct 2017 09:46:31 +0800 Subject: [PATCH 152/224] 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: Chaotian Jing Tested-by: Sean Wang Signed-off-by: Ulf Hansson --- drivers/mmc/host/mtk-sd.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) --- a/drivers/mmc/host/mtk-sd.c +++ b/drivers/mmc/host/mtk-sd.c @@ -302,6 +302,7 @@ struct msdc_save_para { struct mtk_mmc_compatible { u8 clk_div_bits; + bool hs400_tune; /* only used for MT8173 */ }; struct msdc_tune_para { @@ -362,18 +363,22 @@ 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[] = { @@ -668,7 +673,8 @@ static void msdc_set_mclk(struct msdc_ho 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); @@ -1597,7 +1603,8 @@ static int msdc_execute_tuning(struct mm 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);