Merge tag 'reset-for-4.5' of git://git.pengutronix.de/git/pza/linux into next/drivers

Merge "Reset controller changes for v4.5" from Philipp Zabel:

- oftree support for getting reset devices by index
- fixed return value consistency of of_reset_control_get
- added support for STi co-processor resets
- added STi status callback
- various fixes

* tag 'reset-for-4.5' of git://git.pengutronix.de/git/pza/linux:
  reset: check return value of reset_controller_register()
  reset: remove redundant $(CONFIG_RESET_CONTROLLER) from Makefile
  reset: use ENOTSUPP instead of ENOSYS
  reset: sunxi: mark the of_device_id array as __initconst
  reset: sti: add a missing blank line after declaration
  reset: sti: Provide ops .status() call-back
  reset: sti: Add support for resetting co-processors
  ARM: STi: Add DT defines for co-processor reset lines
  reset: Fix of_reset_control_get() for consistent return values
  reset: add of_reset_control_get_by_index()

1 files changed, 13 insertions, 4 deletions

diff --git a/include/linux/reset.h b/include/linux/reset.h
index 7f65f9cff951..c4c097de0ba9 100644
--- a/include/linux/reset.h
+++ b/include/linux/reset.h
@@ -38,6 +38,9 @@ static inline struct reset_control *devm_reset_control_get_optional(
 struct reset_control *of_reset_control_get(struct device_node *node,
 					   const char *id);
 
+struct reset_control *of_reset_control_get_by_index(
+					struct device_node *node, int index);
+
 #else
 
 static inline int reset_control_reset(struct reset_control *rstc)
@@ -71,7 +74,7 @@ static inline void reset_control_put(struct reset_control *rstc)
 
 static inline int device_reset_optional(struct device *dev)
 {
-	return -ENOSYS;
+	return -ENOTSUPP;
 }
 
 static inline struct reset_control *__must_check reset_control_get(
@@ -91,19 +94,25 @@ static inline struct reset_control *__must_check devm_reset_control_get(
 static inline struct reset_control *reset_control_get_optional(
 					struct device *dev, const char *id)
 {
-	return ERR_PTR(-ENOSYS);
+	return ERR_PTR(-ENOTSUPP);
 }
 
 static inline struct reset_control *devm_reset_control_get_optional(
 					struct device *dev, const char *id)
 {
-	return ERR_PTR(-ENOSYS);
+	return ERR_PTR(-ENOTSUPP);
 }
 
 static inline struct reset_control *of_reset_control_get(
 				struct device_node *node, const char *id)
 {
-	return ERR_PTR(-ENOSYS);
+	return ERR_PTR(-ENOTSUPP);
+}
+
+static inline struct reset_control *of_reset_control_get_by_index(
+				struct device_node *node, int index)
+{
+	return ERR_PTR(-ENOTSUPP);
 }
 
 #endif /* CONFIG_RESET_CONTROLLER */