Commit 4dc5a79f authored by Shawn Guo's avatar Shawn Guo Committed by Chris Ball

mmc: mxs-mmc: enable regulator for mmc slot

If bootloader or platform initialization code does not enable the
power supply to mmc slot, we need to do it in mmc driver.
Signed-off-by: default avatarShawn Guo <shawn.guo@linaro.org>
Signed-off-by: default avatarChris Ball <cjb@laptop.org>
parent b63b5e81
......@@ -707,6 +707,7 @@ static int mxs_mmc_probe(struct platform_device *pdev)
struct pinctrl *pinctrl;
int ret = 0, irq_err, irq_dma;
dma_cap_mask_t mask;
struct regulator *reg_vmmc;
iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
dmares = platform_get_resource(pdev, IORESOURCE_DMA, 0);
......@@ -747,6 +748,16 @@ static int mxs_mmc_probe(struct platform_device *pdev)
host->mmc = mmc;
host->sdio_irq_en = 0;
reg_vmmc = devm_regulator_get(&pdev->dev, "vmmc");
if (!IS_ERR(reg_vmmc)) {
ret = regulator_enable(reg_vmmc);
if (ret) {
dev_err(&pdev->dev,
"Failed to enable vmmc regulator: %d\n", ret);
goto out_mmc_free;
}
}
pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
if (IS_ERR(pinctrl)) {
ret = PTR_ERR(pinctrl);
......
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