Merge tag 'devicetree-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:
 "DT core:

   - Add node lifecycle unit tests

   - Add of_property_present() helper aligned with fwnode API

   - Print more information on reserved regions on boot

   - Update dtc to upstream v1.6.1-66-gabbd523bae6e

   - Use strscpy() to instead of strncpy() in DT core

   - Add option for schema validation on %.dtb targets

  Bindings:

   - Add/fix support for listing multiple patterns in DT_SCHEMA_FILES

   - Rework external memory controller/bus bindings to properly support
     controller specific child node properties

   - Convert loongson,ls1x-intc, fcs,fusb302, sil,sii8620, Rockchip
     RK3399 PCIe, Synquacer I2C, and Synquacer EXIU bindings to DT
     schema format

   - Add RiscV SBI PMU event mapping binding

   - Add missing contraints on Arm SCMI child node allowed properties

   - Add a bunch of missing Socionext UniPhier glue block bindings and
     example fixes

   - Various fixes for duplicate or conflicting type definitions on DT
     properties"

* tag 'devicetree-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (66 commits)
  dt-bindings: regulator: Add mps,mpq7932 power-management IC
  of: dynamic: Fix spelling mistake "kojbect" -> "kobject"
  dt-bindings: drop Sagar Kadam from SiFive binding maintainership
  dt-bindings: sram: qcom,imem: document sm8450
  dt-bindings: interrupt-controller: convert loongson,ls1x-intc.txt to json-schema
  dt-bindings: arm: Add Cortex-A715 and X3
  of: dynamic: add lifecycle docbook info to node creation functions
  of: add consistency check to of_node_release()
  of: do not use "%pOF" printk format on node with refcount of zero
  of: unittest: add node lifecycle tests
  of: update kconfig unittest help
  of: add processing of EXPECT_NOT to of_unittest_expect
  of: prepare to add processing of EXPECT_NOT to of_unittest_expect
  of: Use preferred of_property_read_* functions
  of: Use of_property_present() helper
  of: Add of_property_present() helper
  of: reserved_mem: Use proper binary prefix
  dt-bindings: Fix multi pattern support in DT_SCHEMA_FILES
  of: reserved-mem: print out reserved-mem details during boot
  dt-bindings: serial: restrict possible child node names
  ...

1 files changed, 28 insertions, 2 deletions

diff --git a/include/linux/of.h b/include/linux/of.h
index 98c252d2d851..0af611307db2 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -100,8 +100,19 @@ struct of_reconfig_data {
 	struct property		*old_prop;
 };
 
+/**
+ * of_node_init - initialize a devicetree node
+ * @node: Pointer to device node that has been created by kzalloc()
+ * @phandle_name: Name of property holding a phandle value
+ *
+ * On return the device_node refcount is set to one.  Use of_node_put()
+ * on @node when done to free the memory allocated for it.  If the node
+ * is NOT a dynamic node the memory will not be freed. The decision of
+ * whether to free the memory will be done by node->release(), which is
+ * of_node_release().
+ */
 /* initialize a node */
-extern struct kobj_type of_node_ktype;
+extern const struct kobj_type of_node_ktype;
 extern const struct fwnode_operations of_fwnode_ops;
 static inline void of_node_init(struct device_node *node)
 {
@@ -1180,7 +1191,8 @@ static inline int of_property_read_string_index(const struct device_node *np,
  * @np:		device node from which the property value is to be read.
  * @propname:	name of the property to be searched.
  *
- * Search for a property in a device node.
+ * Search for a boolean property in a device node. Usage on non-boolean
+ * property types is deprecated.
  *
  * Return: true if the property exists false otherwise.
  */
@@ -1193,6 +1205,20 @@ static inline bool of_property_read_bool(const struct device_node *np,
 }
 
 /**
+ * of_property_present - Test if a property is present in a node
+ * @np:		device node to search for the property.
+ * @propname:	name of the property to be searched.
+ *
+ * Test for a property present in a device node.
+ *
+ * Return: true if the property exists false otherwise.
+ */
+static inline bool of_property_present(const struct device_node *np, const char *propname)
+{
+	return of_property_read_bool(np, propname);
+}
+
+/**
  * of_property_read_u8_array - Find and read an array of u8 from a property.
  *
  * @np:		device node from which the property value is to be read.