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dw_mmc: turn on the IO supply

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Fixes the microSD slot on the ASUS C201.

Signed-off-by: Urja Rannikko <urjaman@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com<mailto:peng.fan@nxp.com>>
This commit is contained in:
Urja Rannikko 2019-05-13 13:25:27 +00:00 committed by Kever Yang
parent d0d07ba86a
commit 2b157019bb
1 changed files with 16 additions and 0 deletions
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16
drivers/mmc/dw_mmc.c
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@ -13,6 +13,7 @@
#include <mmc.h>
#include <dwmmc.h>
#include <wait_bit.h>
#include <power/regulator.h>
#define PAGE_SIZE 4096
@ -493,6 +494,21 @@ static int dwmci_set_ios(struct mmc *mmc)
if (host->clksel)
host->clksel(host);
#if CONFIG_IS_ENABLED(DM_REGULATOR)
if (mmc->vqmmc_supply) {
int ret;
if (mmc->signal_voltage == MMC_SIGNAL_VOLTAGE_180)
regulator_set_value(mmc->vqmmc_supply, 1800000);
else
regulator_set_value(mmc->vqmmc_supply, 3300000);
ret = regulator_set_enable_if_allowed(mmc->vqmmc_supply, true);
if (ret)
return ret;
}
#endif
return 0;
}