Merge tag 'devicetree-fixes-for-7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree fixes from Rob Herring:

 - Drop unnecessary type reference from khadas,mcu "fan-supply"

 - Fix clocks in Renesas R-Mobile APE6 example

 - Add missing Unisoc SC2730 PMIC regulators schema

 - Fix Amlogic thermal example

 - kernel-doc fix for of_map_id()

 - Handle negative index in of_fwnode_get_reference_args()

* tag 'devicetree-fixes-for-7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: mfd: khadas,mcu: Drop type reference from "fan-supply"
  dt-bindings: clock: renesas: div6: Use ZT/ZTR trace clock in R-Mobile APE6 example
  regulator: dt-bindings: Add Unisoc SC2730 PMIC
  dt-bindings: thermal: amlogic: Correct 'reg' in the example
  dt-bindings: thermal: amlogic: Fix missing header in the example
  of: Fix RST inline emphasis warnings in of_map_id() kernel-doc
  of: property: Fix of_fwnode_get_reference_args() with negative index

2 files changed, 10 insertions, 2 deletions

diff --git a/drivers/of/base.c b/drivers/of/base.c
index 7cb0d7e88247..6e7a42dedad3 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -2160,7 +2160,7 @@ static bool of_check_bad_map(const __be32 *map, int len)
  * @map_mask_name: optional property name of the mask to use.
  * @filter_np: pointer to an optional filter node, or NULL to allow bypass.
  *	If non-NULL, the map property must exist (-ENODEV if absent). If
- *	*filter_np is also non-NULL, only entries targeting that node match.
+ *	``*filter_np`` is also non-NULL, only entries targeting that node match.
  * @arg: pointer to a &struct of_phandle_args for the result. On success,
  *	@arg->args_count will be set to the number of output specifier cells
  *	as defined by @cells_name in the target node, and
@@ -2350,7 +2350,7 @@ EXPORT_SYMBOL_GPL(of_map_iommu_id);
  *      stream/device ID) used as the lookup key in the msi-map table.
  * @filter_np: pointer to an optional filter node, or NULL to allow bypass.
  *	If non-NULL, the map property must exist (-ENODEV if absent). If
- *	*filter_np is also non-NULL, only entries targeting that node match.
+ *	``*filter_np`` is also non-NULL, only entries targeting that node match.
  * @arg: pointer to a &struct of_phandle_args for the result. On success,
  *	@arg->args_count will be set to the number of output specifier cells
  *	and @arg->args[0..args_count-1] will contain the translated output
diff --git a/drivers/of/property.c b/drivers/of/property.c
index b276d1de3222..72cf12907de0 100644
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -1172,6 +1172,14 @@ of_fwnode_get_reference_args(const struct fwnode_handle *fwnode,
 	unsigned int i;
 	int ret;
 
+	/*
+	 * This function should return -ENOENT for out of bound indexes,
+	 * but the OF API uses signed indexes and consider negative indexes
+	 * as invalid. Catch them here to correctly implement the fwnode API.
+	 */
+	if ((int)index < 0)
+		return -ENOENT;
+
 	if (nargs_prop)
 		ret = of_parse_phandle_with_args(to_of_node(fwnode), prop,
 						 nargs_prop, index, &of_args);