diff options
| author | Mengqi Zhang <mengqi.zhang@mediatek.com> | 2023-12-25 17:38:40 +0800 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2024-01-02 17:54:05 +0100 |
| commit | 77e01b49e35f24ebd1659096d5fc5c3b75975545 (patch) | |
| tree | 02a13063666685bc7061b46183fc45298b2dc9f4 /drivers/mmc | |
| parent | 09f164d393a6671e5ff8342ba6b3cb7fe3f20208 (diff) | |
mmc: core: Add HS400 tuning in HS400es initialization
During the initialization to HS400es stage, add a HS400 tuning flow as an
optional process. For Mediatek IP, the HS400es mode requires a specific
tuning to ensure the correct HS400 timing setting.
Signed-off-by: Mengqi Zhang <mengqi.zhang@mediatek.com>
Link: https://lore.kernel.org/r/20231225093839.22931-2-mengqi.zhang@mediatek.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/core/mmc.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index adf7b70cf1b6..f410bee50132 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -1831,8 +1831,13 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, if (err) goto free_card; - - } else if (!mmc_card_hs400es(card)) { + } else if (mmc_card_hs400es(card)) { + if (host->ops->execute_hs400_tuning) { + err = host->ops->execute_hs400_tuning(host, card); + if (err) + goto free_card; + } + } else { /* Select the desired bus width optionally */ err = mmc_select_bus_width(card); if (err > 0 && mmc_card_hs(card)) { |