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mmc: tmio: check mmc_regulator_get_supply return value
mmc_regulator_get_supply returns -EPROBE_DEFER if either vmmc or vqmmc regulators had their probing deferred. vqmmc regulator is needed by UHS to work properly, therefore this patch checks the value returned by mmc_regulator_get_supply to make sure we have a reference to both vmmc and vqmmc (if found in the DT). Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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@ -1113,8 +1113,11 @@ static int tmio_mmc_init_ocr(struct tmio_mmc_host *host)
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{
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struct tmio_mmc_data *pdata = host->pdata;
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struct mmc_host *mmc = host->mmc;
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int err;
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mmc_regulator_get_supply(mmc);
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err = mmc_regulator_get_supply(mmc);
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if (err)
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return err;
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/* use ocr_mask if no regulator */
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if (!mmc->ocr_avail)
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