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authorThierry Reding <thierry.reding@avionic-design.de>2012-04-26 16:52:20 +0200
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-05-04 13:25:15 +0100
commit1c8fa58f4750e9ad722fbf899866c312ffabab67 (patch)
treebd7aa14a3d78d17da9eb7c7638a66562f78b6f9f /include/linux/regulator
parent82caa9780a85a97e45e4df6e1f228279707bdcfe (diff)
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regulator: Add generic DT parsing for regulators
Looking up init data for regulators found on chips is a common operation that can be handled in a generic way. The new helper function introduced by this patch looks up the children of a given node by names specified in a match table and fills that match table with information parsed from the DT. This is based on work by Rhyland Klein <rklein@nvidia.com>. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'include/linux/regulator')
-rw-r--r--include/linux/regulator/of_regulator.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/regulator/of_regulator.h b/include/linux/regulator/of_regulator.h
index 769704f296e5..f9217965aaa3 100644
--- a/include/linux/regulator/of_regulator.h
+++ b/include/linux/regulator/of_regulator.h
@@ -6,10 +6,20 @@
#ifndef __LINUX_OF_REG_H
#define __LINUX_OF_REG_H
+struct of_regulator_match {
+ const char *name;
+ void *driver_data;
+ struct regulator_init_data *init_data;
+ struct device_node *of_node;
+};
+
#if defined(CONFIG_OF)
extern struct regulator_init_data
*of_get_regulator_init_data(struct device *dev,
struct device_node *node);
+extern int of_regulator_match(struct device *dev, struct device_node *node,
+ struct of_regulator_match *matches,
+ unsigned int num_matches);
#else
static inline struct regulator_init_data
*of_get_regulator_init_data(struct device *dev,
@@ -17,6 +27,14 @@ static inline struct regulator_init_data
{
return NULL;
}
+
+static inline int of_regulator_match(struct device *dev,
+ struct device_node *node,
+ struct of_regulator_match *matches,
+ unsigned int num_matches)
+{
+ return 0;
+}
#endif /* CONFIG_OF */
#endif /* __LINUX_OF_REG_H */