Commit c5f3939b8fe0 ("regulator: core: Support fixed voltages in regulator_is_supported_voltage()") adds support for fixed regulators in regulator_is_supported_voltage.
In case of fixed regulators for which voltage cannot be changed, regulator_is_supported_voltage should return success only if the min_uV and max_uV parameters are same and it is equal to the current voltage of the regulator. Signed-off-by: Tushar Behera <tushar.beh...@linaro.org> --- Currently this patch breaks MMC support for boards on which vmmc is a fixed regulator and the voltage is not equal to either of 3.3v, 3.0v or 1.8v. Earlier it used to work if the voltage was less than 3.3v. drivers/regulator/core.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 1a35251..4a377a7 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1974,7 +1974,7 @@ int regulator_is_supported_voltage(struct regulator *regulator, if (!(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE)) { ret = regulator_get_voltage(regulator); if (ret >= 0) - return (min_uV >= ret && ret <= max_uV); + return (ret == min_uV && ret == max_uV); else return ret; } -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/