regulator: pass device_node to of_get_regulator_init_data()

It's not always true that the device_node of regulator can be found
at dev->of_node at the time when of_get_regulator_init_data() is being
called, because in some cases the regulator nodes in device tree do
not have 'struct device' behind them until regulator_dev gets created
for it by core function regulator_register().

The patch adds device_node as a new parameter to
of_get_regulator_init_data(), so that caller can pass in the node of
regulator directly.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/include/linux/regulator/of_regulator.h b/include/linux/regulator/of_regulator.h
index d83a98d3e3f..769704f296e 100644
--- a/include/linux/regulator/of_regulator.h
+++ b/include/linux/regulator/of_regulator.h
@@ -8,10 +8,12 @@
 
 #if defined(CONFIG_OF)
 extern struct regulator_init_data
-        *of_get_regulator_init_data(struct device *dev);
+        *of_get_regulator_init_data(struct device *dev,
+                                    struct device_node *node);
 #else
 static inline struct regulator_init_data
-        *of_get_regulator_init_data(struct device *dev)
+        *of_get_regulator_init_data(struct device *dev,
+                                    struct device_node *node)
 {
         return NULL;
 }