Merge tag 'devicetree-for-6.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull more devicetree updates from Rob Herring:

 - First part of DT header detangling dropping cpu.h from of_device.h
   and replacing some includes with forward declarations. A handful of
   drivers needed some adjustment to their includes as a result.

 - Refactor of_device.h to be used by bus drivers rather than various
   device drivers. This moves non-bus related functions out of
   of_device.h. The end goal is for of_platform.h and of_device.h to
   stop including each other.

 - Refactor open coded parsing of "ranges" in some bus drivers to use DT
   address parsing functions

 - Add some new address parsing functions of_property_read_reg(),
   of_range_count(), and of_range_to_resource() in preparation to
   convert more open coded parsing of DT addresses to use them.

 - Treewide clean-ups to use of_property_read_bool() and
   of_property_present() as appropriate. The ones here are the ones that
   didn't get picked up elsewhere.

* tag 'devicetree-for-6.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (34 commits)
  bus: tegra-gmi: Replace of_platform.h with explicit includes
  hte: Use of_property_present() for testing DT property presence
  w1: w1-gpio: Use of_property_read_bool() for boolean properties
  virt: fsl: Use of_property_present() for testing DT property presence
  soc: fsl: Use of_property_present() for testing DT property presence
  sbus: display7seg: Use of_property_read_bool() for boolean properties
  sparc: Use of_property_read_bool() for boolean properties
  sparc: Use of_property_present() for testing DT property presence
  bus: mvebu-mbus: Remove open coded "ranges" parsing
  of/address: Add of_property_read_reg() helper
  of/address: Add of_range_count() helper
  of/address: Add support for 3 address cell bus
  of/address: Add of_range_to_resource() helper
  of: unittest: Add bus address range parsing tests
  of: Drop cpu.h include from of_device.h
  OPP: Adjust includes to remove of_device.h
  irqchip: loongson-eiointc: Add explicit include for cpuhotplug.h
  cpuidle: Adjust includes to remove of_device.h
  cpufreq: sun50i: Add explicit include for cpu.h
  cpufreq: Adjust includes to remove of_device.h
  ...

7 files changed, 443 insertions, 192 deletions

diff --git a/drivers/of/Makefile b/drivers/of/Makefile
index e0360a44306e..10f704592561 100644
--- a/drivers/of/Makefile
+++ b/drivers/of/Makefile
@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
-obj-y = base.o device.o platform.o property.o
+obj-y = base.o cpu.o device.o platform.o property.o
 obj-$(CONFIG_OF_KOBJ) += kobj.o
 obj-$(CONFIG_OF_DYNAMIC) += dynamic.o
 obj-$(CONFIG_OF_FLATTREE) += fdt.o
diff --git a/drivers/of/address.c b/drivers/of/address.c
index 3aaa63e66fcf..0d49f8c9ed88 100644
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -90,11 +90,17 @@ static int of_bus_default_translate(__be32 *addr, u64 offset, int na)
 	return 0;
 }
 
+static unsigned int of_bus_default_flags_get_flags(const __be32 *addr)
+{
+	return of_read_number(addr, 1);
+}
+
 static unsigned int of_bus_default_get_flags(const __be32 *addr)
 {
 	return IORESOURCE_MEM;
 }
 
+
 #ifdef CONFIG_PCI
 static unsigned int of_bus_pci_get_flags(const __be32 *addr)
 {
@@ -213,9 +219,6 @@ int of_pci_range_to_resource(struct of_pci_range *range,
 	res->parent = res->child = res->sibling = NULL;
 	res->name = np->full_name;
 
-	if (!IS_ENABLED(CONFIG_PCI))
-		return -ENOSYS;
-
 	if (res->flags & IORESOURCE_IO) {
 		unsigned long port;
 		err = pci_register_io_range(&np->fwnode, range->cpu_addr,
@@ -248,6 +251,34 @@ invalid_range:
 EXPORT_SYMBOL(of_pci_range_to_resource);
 
 /*
+ * of_range_to_resource - Create a resource from a ranges entry
+ * @np:		device node where the range belongs to
+ * @index:	the 'ranges' index to convert to a resource
+ * @res:	pointer to a valid resource that will be updated to
+ *              reflect the values contained in the range.
+ *
+ * Returns ENOENT if the entry is not found or EINVAL if the range cannot be
+ * converted to resource.
+ */
+int of_range_to_resource(struct device_node *np, int index, struct resource *res)
+{
+	int ret, i = 0;
+	struct of_range_parser parser;
+	struct of_range range;
+
+	ret = of_range_parser_init(&parser, np);
+	if (ret)
+		return ret;
+
+	for_each_of_range(&parser, &range)
+		if (i++ == index)
+			return of_pci_range_to_resource(&range, np, res);
+
+	return -ENOENT;
+}
+EXPORT_SYMBOL(of_range_to_resource);
+
+/*
  * ISA bus specific translator
  */
 
@@ -303,6 +334,11 @@ static unsigned int of_bus_isa_get_flags(const __be32 *addr)
 	return flags;
 }
 
+static int of_bus_default_flags_match(struct device_node *np)
+{
+	return of_bus_n_addr_cells(np) == 3;
+}
+
 /*
  * Array of bus specific translators
  */
@@ -332,6 +368,17 @@ static struct of_bus of_busses[] = {
 		.has_flags = true,
 		.get_flags = of_bus_isa_get_flags,
 	},
+	/* Default with flags cell */
+	{
+		.name = "default-flags",
+		.addresses = "reg",
+		.match = of_bus_default_flags_match,
+		.count_cells = of_bus_default_count_cells,
+		.map = of_bus_default_map,
+		.translate = of_bus_default_translate,
+		.has_flags = true,
+		.get_flags = of_bus_default_flags_get_flags,
+	},
 	/* Default */
 	{
 		.name = "default",
@@ -697,6 +744,29 @@ const __be32 *__of_get_address(struct device_node *dev, int index, int bar_no,
 }
 EXPORT_SYMBOL(__of_get_address);
 
+/**
+ * of_property_read_reg - Retrieve the specified "reg" entry index without translating
+ * @np: device tree node for which to retrieve "reg" from
+ * @idx: "reg" entry index to read
+ * @addr: return value for the untranslated address
+ * @size: return value for the entry size
+ *
+ * Returns -EINVAL if "reg" is not found. Returns 0 on success with addr and
+ * size values filled in.
+ */
+int of_property_read_reg(struct device_node *np, int idx, u64 *addr, u64 *size)
+{
+	const __be32 *prop = of_get_address(np, idx, size, NULL);
+
+	if (!prop)
+		return -EINVAL;
+
+	*addr = of_read_number(prop, of_n_addr_cells(np));
+
+	return 0;
+}
+EXPORT_SYMBOL(of_property_read_reg);
+
 static int parser_init(struct of_pci_range_parser *parser,
 			struct device_node *node, const char *name)
 {
diff --git a/drivers/of/base.c b/drivers/of/base.c
index ac6fde53342f..7f1720af813c 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -287,193 +287,6 @@ const void *of_get_property(const struct device_node *np, const char *name,
 EXPORT_SYMBOL(of_get_property);
 
 /**
- * of_get_cpu_hwid - Get the hardware ID from a CPU device node
- *
- * @cpun: CPU number(logical index) for which device node is required
- * @thread: The local thread number to get the hardware ID for.
- *
- * Return: The hardware ID for the CPU node or ~0ULL if not found.
- */
-u64 of_get_cpu_hwid(struct device_node *cpun, unsigned int thread)
-{
-	const __be32 *cell;
-	int ac, len;
-
-	ac = of_n_addr_cells(cpun);
-	cell = of_get_property(cpun, "reg", &len);
-	if (!cell || !ac || ((sizeof(*cell) * ac * (thread + 1)) > len))
-		return ~0ULL;
-
-	cell += ac * thread;
-	return of_read_number(cell, ac);
-}
-
-/*
- * arch_match_cpu_phys_id - Match the given logical CPU and physical id
- *
- * @cpu: logical cpu index of a core/thread
- * @phys_id: physical identifier of a core/thread
- *
- * CPU logical to physical index mapping is architecture specific.
- * However this __weak function provides a default match of physical
- * id to logical cpu index. phys_id provided here is usually values read
- * from the device tree which must match the hardware internal registers.
- *
- * Returns true if the physical identifier and the logical cpu index
- * correspond to the same core/thread, false otherwise.
- */
-bool __weak arch_match_cpu_phys_id(int cpu, u64 phys_id)
-{
-	return (u32)phys_id == cpu;
-}
-
-/*
- * Checks if the given "prop_name" property holds the physical id of the
- * core/thread corresponding to the logical cpu 'cpu'. If 'thread' is not
- * NULL, local thread number within the core is returned in it.
- */
-static bool __of_find_n_match_cpu_property(struct device_node *cpun,
-			const char *prop_name, int cpu, unsigned int *thread)
-{
-	const __be32 *cell;
-	int ac, prop_len, tid;
-	u64 hwid;
-
-	ac = of_n_addr_cells(cpun);
-	cell = of_get_property(cpun, prop_name, &prop_len);
-	if (!cell && !ac && arch_match_cpu_phys_id(cpu, 0))
-		return true;
-	if (!cell || !ac)
-		return false;
-	prop_len /= sizeof(*cell) * ac;
-	for (tid = 0; tid < prop_len; tid++) {
-		hwid = of_read_number(cell, ac);
-		if (arch_match_cpu_phys_id(cpu, hwid)) {
-			if (thread)
-				*thread = tid;
-			return true;
-		}
-		cell += ac;
-	}
-	return false;
-}
-
-/*
- * arch_find_n_match_cpu_physical_id - See if the given device node is
- * for the cpu corresponding to logical cpu 'cpu'.  Return true if so,
- * else false.  If 'thread' is non-NULL, the local thread number within the
- * core is returned in it.
- */
-bool __weak arch_find_n_match_cpu_physical_id(struct device_node *cpun,
-					      int cpu, unsigned int *thread)
-{
-	/* Check for non-standard "ibm,ppc-interrupt-server#s" property
-	 * for thread ids on PowerPC. If it doesn't exist fallback to
-	 * standard "reg" property.
-	 */
-	if (IS_ENABLED(CONFIG_PPC) &&
-	    __of_find_n_match_cpu_property(cpun,
-					   "ibm,ppc-interrupt-server#s",
-					   cpu, thread))
-		return true;
-
-	return __of_find_n_match_cpu_property(cpun, "reg", cpu, thread);
-}
-
-/**
- * of_get_cpu_node - Get device node associated with the given logical CPU
- *
- * @cpu: CPU number(logical index) for which device node is required
- * @thread: if not NULL, local thread number within the physical core is
- *          returned
- *
- * The main purpose of this function is to retrieve the device node for the
- * given logical CPU index. It should be used to initialize the of_node in
- * cpu device. Once of_node in cpu device is populated, all the further
- * references can use that instead.
- *
- * CPU logical to physical index mapping is architecture specific and is built
- * before booting secondary cores. This function uses arch_match_cpu_phys_id
- * which can be overridden by architecture specific implementation.
- *
- * Return: A node pointer for the logical cpu with refcount incremented, use
- * of_node_put() on it when done. Returns NULL if not found.
- */
-struct device_node *of_get_cpu_node(int cpu, unsigned int *thread)
-{
-	struct device_node *cpun;
-
-	for_each_of_cpu_node(cpun) {
-		if (arch_find_n_match_cpu_physical_id(cpun, cpu, thread))
-			return cpun;
-	}
-	return NULL;
-}
-EXPORT_SYMBOL(of_get_cpu_node);
-
-/**
- * of_cpu_node_to_id: Get the logical CPU number for a given device_node
- *
- * @cpu_node: Pointer to the device_node for CPU.
- *
- * Return: The logical CPU number of the given CPU device_node or -ENODEV if the
- * CPU is not found.
- */
-int of_cpu_node_to_id(struct device_node *cpu_node)
-{
-	int cpu;
-	bool found = false;
-	struct device_node *np;
-
-	for_each_possible_cpu(cpu) {
-		np = of_cpu_device_node_get(cpu);
-		found = (cpu_node == np);
-		of_node_put(np);
-		if (found)
-			return cpu;
-	}
-
-	return -ENODEV;
-}
-EXPORT_SYMBOL(of_cpu_node_to_id);
-
-/**
- * of_get_cpu_state_node - Get CPU's idle state node at the given index
- *
- * @cpu_node: The device node for the CPU
- * @index: The index in the list of the idle states
- *
- * Two generic methods can be used to describe a CPU's idle states, either via
- * a flattened description through the "cpu-idle-states" binding or via the
- * hierarchical layout, using the "power-domains" and the "domain-idle-states"
- * bindings. This function check for both and returns the idle state node for
- * the requested index.
- *
- * Return: An idle state node if found at @index. The refcount is incremented
- * for it, so call of_node_put() on it when done. Returns NULL if not found.
- */
-struct device_node *of_get_cpu_state_node(struct device_node *cpu_node,
-					  int index)
-{
-	struct of_phandle_args args;
-	int err;
-
-	err = of_parse_phandle_with_args(cpu_node, "power-domains",
-					"#power-domain-cells", 0, &args);
-	if (!err) {
-		struct device_node *state_node =
-			of_parse_phandle(args.np, "domain-idle-states", index);
-
-		of_node_put(args.np);
-		if (state_node)
-			return state_node;
-	}
-
-	return of_parse_phandle(cpu_node, "cpu-idle-states", index);
-}
-EXPORT_SYMBOL(of_get_cpu_state_node);
-
-/**
  * __of_device_is_compatible() - Check if the node matches given constraints
  * @device: pointer to node
  * @compat: required compatible string, NULL or "" for any match
diff --git a/drivers/of/cpu.c b/drivers/of/cpu.c
new file mode 100644
index 000000000000..d17b2f851082
--- /dev/null
+++ b/drivers/of/cpu.c
@@ -0,0 +1,210 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/cpu.h>
+#include <linux/kernel.h>
+#include <linux/of.h>
+
+/**
+ * of_get_cpu_hwid - Get the hardware ID from a CPU device node
+ *
+ * @cpun: CPU number(logical index) for which device node is required
+ * @thread: The local thread number to get the hardware ID for.
+ *
+ * Return: The hardware ID for the CPU node or ~0ULL if not found.
+ */
+u64 of_get_cpu_hwid(struct device_node *cpun, unsigned int thread)
+{
+	const __be32 *cell;
+	int ac, len;
+
+	ac = of_n_addr_cells(cpun);
+	cell = of_get_property(cpun, "reg", &len);
+	if (!cell || !ac || ((sizeof(*cell) * ac * (thread + 1)) > len))
+		return ~0ULL;
+
+	cell += ac * thread;
+	return of_read_number(cell, ac);
+}
+
+/*
+ * arch_match_cpu_phys_id - Match the given logical CPU and physical id
+ *
+ * @cpu: logical cpu index of a core/thread
+ * @phys_id: physical identifier of a core/thread
+ *
+ * CPU logical to physical index mapping is architecture specific.
+ * However this __weak function provides a default match of physical
+ * id to logical cpu index. phys_id provided here is usually values read
+ * from the device tree which must match the hardware internal registers.
+ *
+ * Returns true if the physical identifier and the logical cpu index
+ * correspond to the same core/thread, false otherwise.
+ */
+bool __weak arch_match_cpu_phys_id(int cpu, u64 phys_id)
+{
+	return (u32)phys_id == cpu;
+}
+
+/*
+ * Checks if the given "prop_name" property holds the physical id of the
+ * core/thread corresponding to the logical cpu 'cpu'. If 'thread' is not
+ * NULL, local thread number within the core is returned in it.
+ */
+static bool __of_find_n_match_cpu_property(struct device_node *cpun,
+			const char *prop_name, int cpu, unsigned int *thread)
+{
+	const __be32 *cell;
+	int ac, prop_len, tid;
+	u64 hwid;
+
+	ac = of_n_addr_cells(cpun);
+	cell = of_get_property(cpun, prop_name, &prop_len);
+	if (!cell && !ac && arch_match_cpu_phys_id(cpu, 0))
+		return true;
+	if (!cell || !ac)
+		return false;
+	prop_len /= sizeof(*cell) * ac;
+	for (tid = 0; tid < prop_len; tid++) {
+		hwid = of_read_number(cell, ac);
+		if (arch_match_cpu_phys_id(cpu, hwid)) {
+			if (thread)
+				*thread = tid;
+			return true;
+		}
+		cell += ac;
+	}
+	return false;
+}
+
+/*
+ * arch_find_n_match_cpu_physical_id - See if the given device node is
+ * for the cpu corresponding to logical cpu 'cpu'.  Return true if so,
+ * else false.  If 'thread' is non-NULL, the local thread number within the
+ * core is returned in it.
+ */
+bool __weak arch_find_n_match_cpu_physical_id(struct device_node *cpun,
+					      int cpu, unsigned int *thread)
+{
+	/* Check for non-standard "ibm,ppc-interrupt-server#s" property
+	 * for thread ids on PowerPC. If it doesn't exist fallback to
+	 * standard "reg" property.
+	 */
+	if (IS_ENABLED(CONFIG_PPC) &&
+	    __of_find_n_match_cpu_property(cpun,
+					   "ibm,ppc-interrupt-server#s",
+					   cpu, thread))
+		return true;
+
+	return __of_find_n_match_cpu_property(cpun, "reg", cpu, thread);
+}
+
+/**
+ * of_get_cpu_node - Get device node associated with the given logical CPU
+ *
+ * @cpu: CPU number(logical index) for which device node is required
+ * @thread: if not NULL, local thread number within the physical core is
+ *          returned
+ *
+ * The main purpose of this function is to retrieve the device node for the
+ * given logical CPU index. It should be used to initialize the of_node in
+ * cpu device. Once of_node in cpu device is populated, all the further
+ * references can use that instead.
+ *
+ * CPU logical to physical index mapping is architecture specific and is built
+ * before booting secondary cores. This function uses arch_match_cpu_phys_id
+ * which can be overridden by architecture specific implementation.
+ *
+ * Return: A node pointer for the logical cpu with refcount incremented, use
+ * of_node_put() on it when done. Returns NULL if not found.
+ */
+struct device_node *of_get_cpu_node(int cpu, unsigned int *thread)
+{
+	struct device_node *cpun;
+
+	for_each_of_cpu_node(cpun) {
+		if (arch_find_n_match_cpu_physical_id(cpun, cpu, thread))
+			return cpun;
+	}
+	return NULL;
+}
+EXPORT_SYMBOL(of_get_cpu_node);
+
+/**
+ * of_cpu_device_node_get: Get the CPU device_node for a given logical CPU number
+ *
+ * @cpu: The logical CPU number
+ *
+ * Return: Pointer to the device_node for CPU with its reference count
+ * incremented of the given logical CPU number or NULL if the CPU device_node
+ * is not found.
+ */
+struct device_node *of_cpu_device_node_get(int cpu)
+{
+	struct device *cpu_dev;
+	cpu_dev = get_cpu_device(cpu);
+	if (!cpu_dev)
+		return of_get_cpu_node(cpu, NULL);
+	return of_node_get(cpu_dev->of_node);
+}
+EXPORT_SYMBOL(of_cpu_device_node_get);
+
+/**
+ * of_cpu_node_to_id: Get the logical CPU number for a given device_node
+ *
+ * @cpu_node: Pointer to the device_node for CPU.
+ *
+ * Return: The logical CPU number of the given CPU device_node or -ENODEV if the
+ * CPU is not found.
+ */
+int of_cpu_node_to_id(struct device_node *cpu_node)
+{
+	int cpu;
+	bool found = false;
+	struct device_node *np;
+
+	for_each_possible_cpu(cpu) {
+		np = of_cpu_device_node_get(cpu);
+		found = (cpu_node == np);
+		of_node_put(np);
+		if (found)
+			return cpu;
+	}
+
+	return -ENODEV;
+}
+EXPORT_SYMBOL(of_cpu_node_to_id);
+
+/**
+ * of_get_cpu_state_node - Get CPU's idle state node at the given index
+ *
+ * @cpu_node: The device node for the CPU
+ * @index: The index in the list of the idle states
+ *
+ * Two generic methods can be used to describe a CPU's idle states, either via
+ * a flattened description through the "cpu-idle-states" binding or via the
+ * hierarchical layout, using the "power-domains" and the "domain-idle-states"
+ * bindings. This function check for both and returns the idle state node for
+ * the requested index.
+ *
+ * Return: An idle state node if found at @index. The refcount is incremented
+ * for it, so call of_node_put() on it when done. Returns NULL if not found.
+ */
+struct device_node *of_get_cpu_state_node(struct device_node *cpu_node,
+					  int index)
+{
+	struct of_phandle_args args;
+	int err;
+
+	err = of_parse_phandle_with_args(cpu_node, "power-domains",
+					"#power-domain-cells", 0, &args);
+	if (!err) {
+		struct device_node *state_node =
+			of_parse_phandle(args.np, "domain-idle-states", index);
+
+		of_node_put(args.np);
+		if (state_node)
+			return state_node;
+	}
+
+	return of_parse_phandle(cpu_node, "cpu-idle-states", index);
+}
+EXPORT_SYMBOL(of_get_cpu_state_node);
diff --git a/drivers/of/of_private.h b/drivers/of/of_private.h
index fb6792d381a6..b57f1014e419 100644
--- a/drivers/of/of_private.h
+++ b/drivers/of/of_private.h
@@ -38,6 +38,7 @@ struct alias_prop {
 #define OF_ROOT_NODE_SIZE_CELLS_DEFAULT 1
 
 extern struct mutex of_mutex;
+extern raw_spinlock_t devtree_lock;
 extern struct list_head aliases_lookup;
 extern struct kset *of_kset;
 
diff --git a/drivers/of/unittest-data/tests-address.dtsi b/drivers/of/unittest-data/tests-address.dtsi
index 6604a52bf6cb..bc0029cbf8ea 100644
--- a/drivers/of/unittest-data/tests-address.dtsi
+++ b/drivers/of/unittest-data/tests-address.dtsi
@@ -14,7 +14,7 @@
 			#size-cells = <1>;
 			/* ranges here is to make sure we don't use it for
 			 * dma-ranges translation */
-			ranges = <0x70000000 0x70000000 0x40000000>,
+			ranges = <0x70000000 0x70000000 0x50000000>,
 				 <0x00000000 0xd0000000 0x20000000>;
 			dma-ranges = <0x0 0x20000000 0x40000000>;
 
@@ -43,6 +43,13 @@
 					     <0x42000000 0x0 0xc0000000 0x20000000 0x0 0x10000000>;
 			};
 
+			bus@a0000000 {
+				#address-cells = <3>;
+				#size-cells = <2>;
+				ranges = <0xf00baa 0x0 0x0 0xa0000000 0x0 0x100000>,
+					 <0xf00bee 0x1 0x0 0xb0000000 0x0 0x200000>;
+			};
+
 		};
 	};
 };
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index ab3e91445256..2191c0136531 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -1008,6 +1008,153 @@ static void __init of_unittest_pci_dma_ranges(void)
 	of_node_put(np);
 }
 
+static void __init of_unittest_bus_ranges(void)
+{
+	struct device_node *np;
+	struct of_range range;
+	struct of_range_parser parser;
+	struct resource res;
+	int ret, count, i = 0;
+
+	np = of_find_node_by_path("/testcase-data/address-tests");
+	if (!np) {
+		pr_err("missing testcase data\n");
+		return;
+	}
+
+	if (of_range_parser_init(&parser, np)) {
+		pr_err("missing ranges property\n");
+		return;
+	}
+
+	ret = of_range_to_resource(np, 1, &res);
+	unittest(!ret, "of_range_to_resource returned error (%d) node %pOF\n",
+		ret, np);
+	unittest(resource_type(&res) == IORESOURCE_MEM,
+		"of_range_to_resource wrong resource type on node %pOF res=%pR\n",
+		np, &res);
+	unittest(res.start == 0xd0000000,
+		"of_range_to_resource wrong resource start address on node %pOF res=%pR\n",
+		np, &res);
+	unittest(resource_size(&res) == 0x20000000,
+		"of_range_to_resource wrong resource start address on node %pOF res=%pR\n",
+		np, &res);
+
+	count = of_range_count(&parser);
+	unittest(count == 2,
+		"of_range_count wrong size on node %pOF count=%d\n",
+		np, count);
+
+	/*
+	 * Get the "ranges" from the device tree
+	 */
+	for_each_of_range(&parser, &range) {
+		unittest(range.flags == IORESOURCE_MEM,
+			"for_each_of_range wrong flags on node %pOF flags=%x (expected %x)\n",
+			np, range.flags, IORESOURCE_MEM);
+		if (!i) {
+			unittest(range.size == 0x50000000,
+				 "for_each_of_range wrong size on node %pOF size=%llx\n",
+				 np, range.size);
+			unittest(range.cpu_addr == 0x70000000,
+				 "for_each_of_range wrong CPU addr (%llx) on node %pOF",
+				 range.cpu_addr, np);
+			unittest(range.bus_addr == 0x70000000,
+				 "for_each_of_range wrong bus addr (%llx) on node %pOF",
+				 range.pci_addr, np);
+		} else {
+			unittest(range.size == 0x20000000,
+				 "for_each_of_range wrong size on node %pOF size=%llx\n",
+				 np, range.size);
+			unittest(range.cpu_addr == 0xd0000000,
+				 "for_each_of_range wrong CPU addr (%llx) on node %pOF",
+				 range.cpu_addr, np);
+			unittest(range.bus_addr == 0x00000000,
+				 "for_each_of_range wrong bus addr (%llx) on node %pOF",
+				 range.pci_addr, np);
+		}
+		i++;
+	}
+
+	of_node_put(np);
+}
+
+static void __init of_unittest_bus_3cell_ranges(void)
+{
+	struct device_node *np;
+	struct of_range range;
+	struct of_range_parser parser;
+	int i = 0;
+
+	np = of_find_node_by_path("/testcase-data/address-tests/bus@a0000000");
+	if (!np) {
+		pr_err("missing testcase data\n");
+		return;
+	}
+
+	if (of_range_parser_init(&parser, np)) {
+		pr_err("missing ranges property\n");
+		return;
+	}
+
+	/*
+	 * Get the "ranges" from the device tree
+	 */
+	for_each_of_range(&parser, &range) {
+		if (!i) {
+			unittest(range.flags == 0xf00baa,
+				 "for_each_of_range wrong flags on node %pOF flags=%x\n",
+				 np, range.flags);
+			unittest(range.size == 0x100000,
+				 "for_each_of_range wrong size on node %pOF size=%llx\n",
+				 np, range.size);
+			unittest(range.cpu_addr == 0xa0000000,
+				 "for_each_of_range wrong CPU addr (%llx) on node %pOF",
+				 range.cpu_addr, np);
+			unittest(range.bus_addr == 0x0,
+				 "for_each_of_range wrong bus addr (%llx) on node %pOF",
+				 range.pci_addr, np);
+		} else {
+			unittest(range.flags == 0xf00bee,
+				 "for_each_of_range wrong flags on node %pOF flags=%x\n",
+				 np, range.flags);
+			unittest(range.size == 0x200000,
+				 "for_each_of_range wrong size on node %pOF size=%llx\n",
+				 np, range.size);
+			unittest(range.cpu_addr == 0xb0000000,
+				 "for_each_of_range wrong CPU addr (%llx) on node %pOF",
+				 range.cpu_addr, np);
+			unittest(range.bus_addr == 0x100000000,
+				 "for_each_of_range wrong bus addr (%llx) on node %pOF",
+				 range.pci_addr, np);
+		}
+		i++;
+	}
+
+	of_node_put(np);
+}
+
+static void __init of_unittest_reg(void)
+{
+	struct device_node *np;
+	int ret;
+	u64 addr, size;
+
+	np = of_find_node_by_path("/testcase-data/address-tests/bus@80000000/device@1000");
+	if (!np) {
+		pr_err("missing testcase data\n");
+		return;
+	}
+
+	ret = of_property_read_reg(np, 0, &addr, &size);
+	unittest(!ret, "of_property_read_reg(%pOF) returned error %d\n",
+		np, ret);
+	unittest(addr == 0x1000, "of_property_read_reg(%pOF) untranslated address (%llx) incorrect\n",
+		np, addr);
+
+	of_node_put(np);
+}
+
 static void __init of_unittest_parse_interrupts(void)
 {
 	struct device_node *np;
@@ -3635,6 +3782,9 @@ static int __init of_unittest(void)
 	of_unittest_dma_get_max_cpu_address();
 	of_unittest_parse_dma_ranges();
 	of_unittest_pci_dma_ranges();
+	of_unittest_bus_ranges();
+	of_unittest_bus_3cell_ranges();
+	of_unittest_reg();
 	of_unittest_match_node();
 	of_unittest_platform_populate();
 	of_unittest_overlay();