[PATCH] mmc: Set clock when reverting to safe bus mode

[Marek Vasut]

From: Valentine Barshak <valentine.bars...@cogentembedded.com>

Set MMC clock when reverting to safe bus mode and speed
in case current MMC mode fails. Otherwise, trying out
the other modes may fail as well.

Reviewed-by: Marek Vasut <marek.vasut+rene...@mailbox.org>
Signed-off-by: Valentine Barshak <valentine.bars...@cogentembedded.com>
[hp: fallback to legacy_speed]
Signed-off-by: Hai Pham <hai.pham...@renesas.com>
---
Cc: "Ying-Chun Liu (PaulLiu)" <paul....@linaro.org>
Cc: Hai Pham <hai.pham...@renesas.com>
Cc: Jaehoon Chung <jh80.ch...@samsung.com>
Cc: Loic Poulain <loic.poul...@linaro.org>
Cc: Peng Fan <peng....@nxp.com>
Cc: Simon Glass <s...@chromium.org>
Cc: Takeshi Kihara <takeshi.kihara...@renesas.com>
---
 drivers/mmc/mmc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 68a76aa3e94..79d0d37c240 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -2231,6 +2231,7 @@ error:
                        mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
                                   EXT_CSD_BUS_WIDTH, EXT_CSD_BUS_WIDTH_1);
                        mmc_select_mode(mmc, MMC_LEGACY);
+                       mmc_set_clock(mmc, mmc->legacy_speed, MMC_CLK_ENABLE);
                        mmc_set_bus_width(mmc, 1);
                }
        }
-- 
2.39.2