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path: root/drivers/regulator/of_regulator.c
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Diffstat (limited to 'drivers/regulator/of_regulator.c')
-rw-r--r--drivers/regulator/of_regulator.c34
1 files changed, 32 insertions, 2 deletions
diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c
index 14637a01ba2d..092ed6efb3ec 100644
--- a/drivers/regulator/of_regulator.c
+++ b/drivers/regulator/of_regulator.c
@@ -177,14 +177,30 @@ static void of_get_regulation_constraints(struct device_node *np,
if (of_property_read_bool(suspend_np,
"regulator-on-in-suspend"))
- suspend_state->enabled = true;
+ suspend_state->enabled = ENABLE_IN_SUSPEND;
else if (of_property_read_bool(suspend_np,
"regulator-off-in-suspend"))
- suspend_state->disabled = true;
+ suspend_state->enabled = DISABLE_IN_SUSPEND;
+ else
+ suspend_state->enabled = DO_NOTHING_IN_SUSPEND;
+
+ if (!of_property_read_u32(np, "regulator-suspend-min-microvolt",
+ &pval))
+ suspend_state->min_uV = pval;
+
+ if (!of_property_read_u32(np, "regulator-suspend-max-microvolt",
+ &pval))
+ suspend_state->max_uV = pval;
if (!of_property_read_u32(suspend_np,
"regulator-suspend-microvolt", &pval))
suspend_state->uV = pval;
+ else /* otherwise use min_uV as default suspend voltage */
+ suspend_state->uV = suspend_state->min_uV;
+
+ if (of_property_read_bool(suspend_np,
+ "regulator-changeable-in-suspend"))
+ suspend_state->changeable = true;
if (i == PM_SUSPEND_MEM)
constraints->initial_state = PM_SUSPEND_MEM;
@@ -376,3 +392,17 @@ struct regulator_init_data *regulator_of_get_init_data(struct device *dev,
return init_data;
}
+
+static int of_node_match(struct device *dev, const void *data)
+{
+ return dev->of_node == data;
+}
+
+struct regulator_dev *of_find_regulator_by_node(struct device_node *np)
+{
+ struct device *dev;
+
+ dev = class_find_device(&regulator_class, NULL, np, of_node_match);
+
+ return dev ? dev_to_rdev(dev) : NULL;
+}