Merge tag 'devicetree-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:

 - Convert various DT (non-binding) doc files to ReST

 - Various improvements to device link code

 - Fix __of_attach_node_sysfs refcounting bug

 - Add support for 'memory-region-names' with reserved-memory binding

 - Vendor prefixes for Protonic Holland, BeagleBoard.org, Alps, Check
   Point, Würth Elektronik, U-Boot, Vaisala, Baikal Electronics,
   Shanghai Awinic Technology Co., MikroTik, Silex Insight

 - A bunch more binding conversions to DT schema. Only 3K to go.

 - Add a minimum version check for schema tools

 - Treewide dropping of 'allOf' usage with schema references. Not needed
   in new json-schema spec.

 - Some formatting clean-ups of schemas

* tag 'devicetree-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (194 commits)
  dt-bindings: clock: Add documentation for X1830 bindings.
  dt-bindings: mailbox: Convert imx mu to json-schema
  dt-bindings: power: Convert imx gpcv2 to json-schema
  dt-bindings: power: Convert imx gpc to json-schema
  dt-bindings: Merge gpio-usb-b-connector with usb-connector
  dt-bindings: timer: renesas: cmt: Convert to json-schema
  dt-bindings: clock: Convert i.MX8QXP LPCG to json-schema
  dt-bindings: timer: Convert i.MX GPT to json-schema
  dt-bindings: thermal: rcar-thermal: Add device tree support for r8a7742
  dt-bindings: serial: Add binding for UART pin swap
  dt-bindings: geni-se: Add interconnect binding for GENI QUP
  dt-bindings: geni-se: Convert QUP geni-se bindings to YAML
  dt-bindings: vendor-prefixes: Add Silex Insight vendor prefix
  dt-bindings: input: touchscreen: edt-ft5x06: change reg property
  dt-bindings: usb: qcom,dwc3: Introduce interconnect properties for Qualcomm DWC3 driver
  dt-bindings: timer: renesas: mtu2: Convert to json-schema
  of/fdt: Remove redundant kbasename function call
  dt-bindings: clock: Convert i.MX1 clock to json-schema
  dt-bindings: clock: Convert i.MX21 clock to json-schema
  dt-bindings: clock: Convert i.MX25 clock to json-schema
  ...

6 files changed, 27 insertions, 19 deletions

diff --git a/drivers/of/dynamic.c b/drivers/of/dynamic.c
index 08fd823edac9..fe64430b438a 100644
--- a/drivers/of/dynamic.c
+++ b/drivers/of/dynamic.c
@@ -286,7 +286,6 @@ int of_detach_node(struct device_node *np)
 {
 	struct of_reconfig_data rd;
 	unsigned long flags;
-	int rc = 0;
 
 	memset(&rd, 0, sizeof(rd));
 	rd.dn = np;
@@ -301,7 +300,7 @@ int of_detach_node(struct device_node *np)
 
 	of_reconfig_notify(OF_RECONFIG_DETACH_NODE, &rd);
 
-	return rc;
+	return 0;
 }
 EXPORT_SYMBOL_GPL(of_detach_node);
 
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 2cdf64d2456f..4602e467ca8b 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -471,7 +471,7 @@ void *initial_boot_params __ro_after_init;
 static u32 of_fdt_crc32;
 
 /**
- * res_mem_reserve_reg() - reserve all memory described in 'reg' property
+ * __reserved_mem_reserve_reg() - reserve all memory described in 'reg' property
  */
 static int __init __reserved_mem_reserve_reg(unsigned long node,
 					     const char *uname)
@@ -643,8 +643,6 @@ int __init of_scan_flat_dt(int (*it)(unsigned long node,
 	     offset = fdt_next_node(blob, offset, &depth)) {
 
 		pathp = fdt_get_name(blob, offset, NULL);
-		if (*pathp == '/')
-			pathp = kbasename(pathp);
 		rc = it(offset, pathp, depth, data);
 	}
 	return rc;
@@ -671,8 +669,6 @@ int __init of_scan_flat_dt_subnodes(unsigned long parent,
 		int rc;
 
 		pathp = fdt_get_name(blob, node, NULL);
-		if (*pathp == '/')
-			pathp = kbasename(pathp);
 		rc = it(node, pathp, data);
 		if (rc)
 			return rc;
@@ -1078,7 +1074,7 @@ int __init early_init_dt_scan_chosen(unsigned long node, const char *uname,
 #endif
 #endif /* CONFIG_CMDLINE */
 
-	pr_debug("Command line is: %s\n", (char*)data);
+	pr_debug("Command line is: %s\n", (char *)data);
 
 	rng_seed = of_get_flat_dt_prop(node, "rng-seed", &l);
 	if (rng_seed && l > 0) {
diff --git a/drivers/of/kobj.c b/drivers/of/kobj.c
index c72eef988041..a32e60b024b8 100644
--- a/drivers/of/kobj.c
+++ b/drivers/of/kobj.c
@@ -134,8 +134,6 @@ int __of_attach_node_sysfs(struct device_node *np)
 	if (!name)
 		return -ENOMEM;
 
-	of_node_get(np);
-
 	rc = kobject_add(&np->kobj, parent, "%s", name);
 	kfree(name);
 	if (rc)
@@ -144,6 +142,7 @@ int __of_attach_node_sysfs(struct device_node *np)
 	for_each_property_of_node(np, pp)
 		__of_add_property_sysfs(np, pp);
 
+	of_node_get(np);
 	return 0;
 }
 
diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c
index f61e8739502a..6877080c8af9 100644
--- a/drivers/of/of_reserved_mem.c
+++ b/drivers/of/of_reserved_mem.c
@@ -46,7 +46,7 @@ static int __init early_init_dt_alloc_reserved_memory_arch(phys_addr_t size,
 }
 
 /**
- * res_mem_save_node() - save fdt node for second pass initialization
+ * fdt_reserved_mem_save_node() - save fdt node for second pass initialization
  */
 void __init fdt_reserved_mem_save_node(unsigned long node, const char *uname,
 				      phys_addr_t base, phys_addr_t size)
@@ -68,8 +68,8 @@ void __init fdt_reserved_mem_save_node(unsigned long node, const char *uname,
 }
 
 /**
- * res_mem_alloc_size() - allocate reserved memory described by 'size', 'align'
- *			  and 'alloc-ranges' properties
+ * __reserved_mem_alloc_size() - allocate reserved memory described by
+ *	'size', 'align'  and 'alloc-ranges' properties.
  */
 static int __init __reserved_mem_alloc_size(unsigned long node,
 	const char *uname, phys_addr_t *res_base, phys_addr_t *res_size)
@@ -165,7 +165,7 @@ static const struct of_device_id __rmem_of_table_sentinel
 	__used __section(__reservedmem_of_table_end);
 
 /**
- * res_mem_init_node() - call region specific reserved memory init code
+ * __reserved_mem_init_node() - call region specific reserved memory init code
  */
 static int __init __reserved_mem_init_node(struct reserved_mem *rmem)
 {
@@ -232,7 +232,7 @@ static void __init __rmem_check_for_overlap(void)
 }
 
 /**
- * fdt_init_reserved_mem - allocate and init all saved reserved memory regions
+ * fdt_init_reserved_mem() - allocate and init all saved reserved memory regions
  */
 void __init fdt_init_reserved_mem(void)
 {
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 3371e4a06248..3627fee60215 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -291,7 +291,7 @@ static struct amba_device *of_amba_device_create(struct device_node *node,
 #endif /* CONFIG_ARM_AMBA */
 
 /**
- * of_devname_lookup() - Given a device node, lookup the preferred Linux name
+ * of_dev_lookup() - Given a device node, lookup the preferred Linux name
  */
 static const struct of_dev_auxdata *of_dev_lookup(const struct of_dev_auxdata *lookup,
 				 struct device_node *np)
diff --git a/drivers/of/property.c b/drivers/of/property.c
index b4916dcc9e72..1f2086f4e7ce 100644
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -1045,8 +1045,20 @@ static int of_link_to_phandle(struct device *dev, struct device_node *sup_np,
 	 * Find the device node that contains the supplier phandle.  It may be
 	 * @sup_np or it may be an ancestor of @sup_np.
 	 */
-	while (sup_np && !of_find_property(sup_np, "compatible", NULL))
+	while (sup_np) {
+
+		/* Don't allow linking to a disabled supplier */
+		if (!of_device_is_available(sup_np)) {
+			of_node_put(sup_np);
+			sup_np = NULL;
+		}
+
+		if (of_find_property(sup_np, "compatible", NULL))
+			break;
+
 		sup_np = of_get_next_parent(sup_np);
+	}
+
 	if (!sup_np) {
 		dev_dbg(dev, "Not linking to %pOFP - No device\n", tmp_np);
 		return -ENODEV;
@@ -1074,7 +1086,7 @@ static int of_link_to_phandle(struct device *dev, struct device_node *sup_np,
 		return -EAGAIN;
 	}
 	if (!device_link_add(dev, sup_dev, dl_flags))
-		ret = -EAGAIN;
+		ret = -EINVAL;
 	put_device(sup_dev);
 	return ret;
 }
@@ -1206,6 +1218,7 @@ DEFINE_SIMPLE_PROP(interrupt_parent, "interrupt-parent", NULL)
 DEFINE_SIMPLE_PROP(dmas, "dmas", "#dma-cells")
 DEFINE_SIMPLE_PROP(power_domains, "power-domains", "#power-domain-cells")
 DEFINE_SIMPLE_PROP(hwlocks, "hwlocks", "#hwlock-cells")
+DEFINE_SIMPLE_PROP(extcon, "extcon", NULL)
 DEFINE_SUFFIX_PROP(regulators, "-supply", NULL)
 DEFINE_SUFFIX_PROP(gpio, "-gpio", "#gpio-cells")
 DEFINE_SUFFIX_PROP(gpios, "-gpios", "#gpio-cells")
@@ -1230,6 +1243,7 @@ static const struct supplier_bindings of_supplier_bindings[] = {
 	{ .parse_prop = parse_dmas, },
 	{ .parse_prop = parse_power_domains, },
 	{ .parse_prop = parse_hwlocks, },
+	{ .parse_prop = parse_extcon, },
 	{ .parse_prop = parse_regulators, },
 	{ .parse_prop = parse_gpio, },
 	{ .parse_prop = parse_gpios, },
@@ -1296,7 +1310,7 @@ static int of_link_to_suppliers(struct device *dev,
 		if (of_link_property(dev, con_np, p->name))
 			ret = -ENODEV;
 
-	for_each_child_of_node(con_np, child)
+	for_each_available_child_of_node(con_np, child)
 		if (of_link_to_suppliers(dev, child) && !ret)
 			ret = -EAGAIN;