Voltage change errors should not be fatal to mmc subsystem. Some regulators don't support changing the supplied voltage values, while they can still be used for enabling and disabling the supply. This fixes the regresion that appeared in sdhci driver after commit ceb6143b - erlier it worked fine with fixed gpio-based regulator.
Signed-off-by: Marek Szyprowski <[email protected]> Signed-off-by: Kyungmin Park <[email protected]> --- drivers/mmc/core/core.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index f545a3e..8726ae4 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -1128,6 +1128,12 @@ int mmc_regulator_set_ocr(struct mmc_host *mmc, else result = 0; + /* Some regulators don't support voltage changes, so + * assume that board designer used correct values + */ + if (result == -EINVAL) + result = 0; + if (result == 0 && !mmc->regulator_enabled) { result = regulator_enable(supply); if (!result) -- 1.7.1.569.g6f426 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
