regulator: If a single voltage is set with device tree then set apply_uV
Mark Brown [Mon, 5 Dec 2011 10:58:41 +0000 (10:58 +0000)]
Otherwise there is no way in the bindings to configure a fixed voltage
via software. It seems reasonable to assume that if the binding explicitly
specifies a voltage we want to actually use that voltage.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

drivers/regulator/of_regulator.c

index acd7045..b7b3fc3 100644 (file)
@@ -34,6 +34,9 @@ static void of_get_regulation_constraints(struct device_node *np,
        /* Voltage change possible? */
        if (constraints->min_uV != constraints->max_uV)
                constraints->valid_ops_mask |= REGULATOR_CHANGE_VOLTAGE;
+       /* Only one voltage?  Then make sure it's set. */
+       if (constraints->min_uV == constraints->max_uV)
+               constraints->apply_uV = true;
 
        uV_offset = of_get_property(np, "regulator-microvolt-offset", NULL);
        if (uV_offset)