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mmc: dm: get the IO-line and main voltage regulators from the dts

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Get a reference to the regulator devices from the dts and store them
in the struct mmc for later use.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
This commit is contained in:
Jean-Jacques Hiblot 2017-09-21 16:29:48 +02:00 committed by Jaehoon Chung
parent bb7b4ef370
commit 06ec045fee
2 changed files with 18 additions and 10 deletions
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18
drivers/mmc/mmc.c
View file

@ -1618,22 +1618,26 @@ __weak void board_mmc_power_init(void)
static int mmc_power_init(struct mmc *mmc)
{
#if CONFIG_IS_ENABLED(DM_MMC)
#if defined(CONFIG_DM_REGULATOR) && !defined(CONFIG_SPL_BUILD)
struct udevice *vmmc_supply;
#if CONFIG_IS_ENABLED(DM_REGULATOR)
int ret;
ret = device_get_supply_regulator(mmc->dev, "vmmc-supply",
&vmmc_supply);
if (ret) {
&mmc->vmmc_supply);
if (ret)
debug("%s: No vmmc supply\n", mmc->dev->name);
return 0;
}
ret = regulator_set_enable(vmmc_supply, true);
ret = device_get_supply_regulator(mmc->dev, "vqmmc-supply",
&mmc->vqmmc_supply);
if (ret)
debug("%s: No vqmmc supply\n", mmc->dev->name);
if (mmc->vmmc_supply) {
ret = regulator_set_enable(mmc->vmmc_supply, true);
if (ret) {
puts("Error enabling VMMC supply\n");
return ret;
}
}
#endif
#else /* !CONFIG_DM_MMC */
/*

4
include/mmc.h
View file

@ -457,6 +457,10 @@ struct mmc {
int ddr_mode;
#if CONFIG_IS_ENABLED(DM_MMC)
struct udevice *dev; /* Device for this MMC controller */
#if CONFIG_IS_ENABLED(DM_REGULATOR)
struct udevice *vmmc_supply; /* Main voltage regulator (Vcc)*/
struct udevice *vqmmc_supply; /* IO voltage regulator (Vccq)*/
#endif
#endif
};