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mmc: sdhci-sprd: Fix no reset data and command after voltage switch

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After switching the voltage, no reset data and command will cause
CMD2 timeout.

Fixes: 29ca763fc26f ("mmc: sdhci-sprd: Add pin control support for voltage switch")
Signed-off-by: Wenchao Chen <wenchao.chen@unisoc.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20221130121328.25553-1-wenchao.chen@unisoc.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Wenchao Chen 2022-11-30 20:13:28 +08:00 committed by Ulf Hansson
parent c981cdfb99
commit dd30dcfa7a
1 changed files with 3 additions and 1 deletions
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4
drivers/mmc/host/sdhci-sprd.c
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@ -470,7 +470,7 @@ static int sdhci_sprd_voltage_switch(struct mmc_host *mmc, struct mmc_ios *ios)
}
if (IS_ERR(sprd_host->pinctrl))
return 0;
goto reset;
switch (ios->signal_voltage) {
case MMC_SIGNAL_VOLTAGE_180:
@ -498,6 +498,8 @@ static int sdhci_sprd_voltage_switch(struct mmc_host *mmc, struct mmc_ios *ios)
/* Wait for 300 ~ 500 us for pin state stable */
usleep_range(300, 500);
reset:
sdhci_reset(host, SDHCI_RESET_CMD | SDHCI_RESET_DATA);
return 0;