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
  ...

3 files changed, 22 insertions, 94 deletions

diff --git a/drivers/bus/mvebu-mbus.c b/drivers/bus/mvebu-mbus.c
index d51573ac525e..00cb792bda18 100644
--- a/drivers/bus/mvebu-mbus.c
+++ b/drivers/bus/mvebu-mbus.c
@@ -1179,74 +1179,32 @@ static int __init mbus_dt_setup_win(struct mvebu_mbus_state *mbus,
 	return 0;
 }
 
-static int __init
-mbus_parse_ranges(struct device_node *node,
-		  int *addr_cells, int *c_addr_cells, int *c_size_cells,
-		  int *cell_count, const __be32 **ranges_start,
-		  const __be32 **ranges_end)
-{
-	const __be32 *prop;
-	int ranges_len, tuple_len;
-
-	/* Allow a node with no 'ranges' property */
-	*ranges_start = of_get_property(node, "ranges", &ranges_len);
-	if (*ranges_start == NULL) {
-		*addr_cells = *c_addr_cells = *c_size_cells = *cell_count = 0;
-		*ranges_start = *ranges_end = NULL;
-		return 0;
-	}
-	*ranges_end = *ranges_start + ranges_len / sizeof(__be32);
-
-	*addr_cells = of_n_addr_cells(node);
-
-	prop = of_get_property(node, "#address-cells", NULL);
-	*c_addr_cells = be32_to_cpup(prop);
-
-	prop = of_get_property(node, "#size-cells", NULL);
-	*c_size_cells = be32_to_cpup(prop);
-
-	*cell_count = *addr_cells + *c_addr_cells + *c_size_cells;
-	tuple_len = (*cell_count) * sizeof(__be32);
-
-	if (ranges_len % tuple_len) {
-		pr_warn("malformed ranges entry '%pOFn'\n", node);
-		return -EINVAL;
-	}
-	return 0;
-}
-
 static int __init mbus_dt_setup(struct mvebu_mbus_state *mbus,
 				struct device_node *np)
 {
-	int addr_cells, c_addr_cells, c_size_cells;
-	int i, ret, cell_count;
-	const __be32 *r, *ranges_start, *ranges_end;
+	int ret;
+	struct of_range_parser parser;
+	struct of_range range;
 
-	ret = mbus_parse_ranges(np, &addr_cells, &c_addr_cells,
-				&c_size_cells, &cell_count,
-				&ranges_start, &ranges_end);
+	ret = of_range_parser_init(&parser, np);
 	if (ret < 0)
-		return ret;
+		return 0;
 
-	for (i = 0, r = ranges_start; r < ranges_end; r += cell_count, i++) {
-		u32 windowid, base, size;
+	for_each_of_range(&parser, &range) {
+		u32 windowid = upper_32_bits(range.bus_addr);
 		u8 target, attr;
 
 		/*
 		 * An entry with a non-zero custom field do not
 		 * correspond to a static window, so skip it.
 		 */
-		windowid = of_read_number(r, 1);
 		if (CUSTOM(windowid))
 			continue;
 
 		target = TARGET(windowid);
 		attr = ATTR(windowid);
 
-		base = of_read_number(r + c_addr_cells, addr_cells);
-		size = of_read_number(r + c_addr_cells + addr_cells,
-				      c_size_cells);
-		ret = mbus_dt_setup_win(mbus, base, size, target, attr);
+		ret = mbus_dt_setup_win(mbus, range.cpu_addr, range.size, target, attr);
 		if (ret < 0)
 			return ret;
 	}
diff --git a/drivers/bus/tegra-gmi.c b/drivers/bus/tegra-gmi.c
index 662266719682..e3506ef37051 100644
--- a/drivers/bus/tegra-gmi.c
+++ b/drivers/bus/tegra-gmi.c
@@ -9,7 +9,9 @@
 #include <linux/delay.h>
 #include <linux/io.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/reset.h>
 
diff --git a/drivers/bus/uniphier-system-bus.c b/drivers/bus/uniphier-system-bus.c
index f70dedace20b..cb5c89ce7b86 100644
--- a/drivers/bus/uniphier-system-bus.c
+++ b/drivers/bus/uniphier-system-bus.c
@@ -176,10 +176,9 @@ static int uniphier_system_bus_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct uniphier_system_bus_priv *priv;
-	const __be32 *ranges;
-	u32 cells, addr, size;
-	u64 paddr;
-	int pna, bank, rlen, rone, ret;
+	struct of_range_parser parser;
+	struct of_range range;
+	int ret;
 
 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv)
@@ -191,48 +190,17 @@ static int uniphier_system_bus_probe(struct platform_device *pdev)
 
 	priv->dev = dev;
 
-	pna = of_n_addr_cells(dev->of_node);
-
-	ret = of_property_read_u32(dev->of_node, "#address-cells", &cells);
-	if (ret) {
-		dev_err(dev, "failed to get #address-cells\n");
-		return ret;
-	}
-	if (cells != 2) {
-		dev_err(dev, "#address-cells must be 2\n");
-		return -EINVAL;
-	}
-
-	ret = of_property_read_u32(dev->of_node, "#size-cells", &cells);
-	if (ret) {
-		dev_err(dev, "failed to get #size-cells\n");
+	ret = of_range_parser_init(&parser, dev->of_node);
+	if (ret)
 		return ret;
-	}
-	if (cells != 1) {
-		dev_err(dev, "#size-cells must be 1\n");
-		return -EINVAL;
-	}
 
-	ranges = of_get_property(dev->of_node, "ranges", &rlen);
-	if (!ranges) {
-		dev_err(dev, "failed to get ranges property\n");
-		return -ENOENT;
-	}
-
-	rlen /= sizeof(*ranges);
-	rone = pna + 2;
-
-	for (; rlen >= rone; rlen -= rone) {
-		bank = be32_to_cpup(ranges++);
-		addr = be32_to_cpup(ranges++);
-		paddr = of_translate_address(dev->of_node, ranges);
-		if (paddr == OF_BAD_ADDR)
+	for_each_of_range(&parser, &range) {
+		if (range.cpu_addr == OF_BAD_ADDR)
 			return -EINVAL;
-		ranges += pna;
-		size = be32_to_cpup(ranges++);
-
-		ret = uniphier_system_bus_add_bank(priv, bank, addr,
-						   paddr, size);
+		ret = uniphier_system_bus_add_bank(priv,
+						   upper_32_bits(range.bus_addr),
+						   lower_32_bits(range.bus_addr),
+						   range.cpu_addr, range.size);
 		if (ret)
 			return ret;
 	}