Merge tag 'devicetree-for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull Devicetree updates from Rob Herring:
 "The biggest highlight here is the start of using json-schema for DT
  bindings. Being able to validate bindings has been discussed for years
  with little progress.

   - Initial support for DT bindings using json-schema language. This is
     the start of converting DT bindings from free-form text to a
     structured format.

   - Reworking of initrd address initialization. This moves to using the
     phys address instead of virt addr in the DT parsing code. This
     rework was motivated by CONFIG_DEV_BLK_INITRD causing unnecessary
     rebuilding of lots of files.

   - Fix stale phandle entries in phandle cache

   - DT overlay validation improvements. This exposed several memory
     leak bugs which have been fixed.

   - Use node name and device_type helper functions in DT code

   - Last remaining conversions to using %pOFn printk specifier instead
     of device_node.name directly

   - Create new common RTC binding doc and move all trivial RTC devices
     out of trivial-devices.txt.

   - New bindings for Freescale MAG3110 magnetometer, Cadence Sierra
     PHY, and Xen shared memory

   - Update dtc to upstream version v1.4.7-57-gf267e674d145"

* tag 'devicetree-for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (68 commits)
  of: __of_detach_node() - remove node from phandle cache
  of: of_node_get()/of_node_put() nodes held in phandle cache
  gpio-omap.txt: add reg and interrupts properties
  dt-bindings: mrvl,intc: fix a trivial typo
  dt-bindings: iio: magnetometer: add dt-bindings for freescale mag3110
  dt-bindings: Convert trivial-devices.txt to json-schema
  dt-bindings: arm: mrvl: amend Browstone compatible string
  dt-bindings: arm: Convert Tegra board/soc bindings to json-schema
  dt-bindings: arm: Convert ZTE board/soc bindings to json-schema
  dt-bindings: arm: Add missing Xilinx boards
  dt-bindings: arm: Convert Xilinx board/soc bindings to json-schema
  dt-bindings: arm: Convert VIA board/soc bindings to json-schema
  dt-bindings: arm: Convert ST STi board/soc bindings to json-schema
  dt-bindings: arm: Convert SPEAr board/soc bindings to json-schema
  dt-bindings: arm: Convert CSR SiRF board/soc bindings to json-schema
  dt-bindings: arm: Convert QCom board/soc bindings to json-schema
  dt-bindings: arm: Convert TI nspire board/soc bindings to json-schema
  dt-bindings: arm: Convert TI davinci board/soc bindings to json-schema
  dt-bindings: arm: Convert Calxeda board/soc bindings to json-schema
  dt-bindings: arm: Convert Altera board/soc bindings to json-schema
  ...

1 files changed, 73 insertions, 42 deletions

diff --git a/scripts/dtc/treesource.c b/scripts/dtc/treesource.c
index f2874f1d1465..1af36628b75f 100644
--- a/scripts/dtc/treesource.c
+++ b/scripts/dtc/treesource.c
@@ -64,6 +64,10 @@ static bool isstring(char c)
 static void write_propval_string(FILE *f, const char *s, size_t len)
 {
 	const char *end = s + len - 1;
+
+	if (!len)
+		return;
+
 	assert(*end == '\0');
 
 	fprintf(f, "\"");
@@ -118,18 +122,20 @@ static void write_propval_int(FILE *f, const char *p, size_t len, size_t width)
 	for (; p < end; p += width) {
 		switch (width) {
 		case 1:
-			fprintf(f, " %02"PRIx8, *(const uint8_t*)p);
+			fprintf(f, "%02"PRIx8, *(const uint8_t*)p);
 			break;
 		case 2:
-			fprintf(f, " 0x%02"PRIx16, fdt16_to_cpu(*(const fdt16_t*)p));
+			fprintf(f, "0x%02"PRIx16, fdt16_to_cpu(*(const fdt16_t*)p));
 			break;
 		case 4:
-			fprintf(f, " 0x%02"PRIx32, fdt32_to_cpu(*(const fdt32_t*)p));
+			fprintf(f, "0x%02"PRIx32, fdt32_to_cpu(*(const fdt32_t*)p));
 			break;
 		case 8:
-			fprintf(f, " 0x%02"PRIx64, fdt64_to_cpu(*(const fdt64_t*)p));
+			fprintf(f, "0x%02"PRIx64, fdt64_to_cpu(*(const fdt64_t*)p));
 			break;
 		}
+		if (p + width < end)
+			fputc(' ', f);
 	}
 }
 
@@ -162,10 +168,10 @@ static const char *delim_start[] = {
 	[TYPE_STRING] = "",
 };
 static const char *delim_end[] = {
-	[TYPE_UINT8] = " ]",
-	[TYPE_UINT16] = " >",
-	[TYPE_UINT32] = " >",
-	[TYPE_UINT64] = " >",
+	[TYPE_UINT8] = "]",
+	[TYPE_UINT16] = ">",
+	[TYPE_UINT32] = ">",
+	[TYPE_UINT64] = ">",
 	[TYPE_STRING] = "",
 };
 
@@ -208,13 +214,22 @@ static void write_propval(FILE *f, struct property *prop)
 	struct marker *m = prop->val.markers;
 	struct marker dummy_marker;
 	enum markertype emit_type = TYPE_NONE;
+	char *srcstr;
 
 	if (len == 0) {
-		fprintf(f, ";\n");
+		fprintf(f, ";");
+		if (annotate) {
+			srcstr = srcpos_string_first(prop->srcpos, annotate);
+			if (srcstr) {
+				fprintf(f, " /* %s */", srcstr);
+				free(srcstr);
+			}
+		}
+		fprintf(f, "\n");
 		return;
 	}
 
-	fprintf(f, " = ");
+	fprintf(f, " =");
 
 	if (!next_type_marker(m)) {
 		/* data type information missing, need to guess */
@@ -225,32 +240,23 @@ static void write_propval(FILE *f, struct property *prop)
 		m = &dummy_marker;
 	}
 
-	struct marker *m_label = prop->val.markers;
 	for_each_marker(m) {
-		size_t chunk_len;
+		size_t chunk_len = (m->next ? m->next->offset : len) - m->offset;
+		size_t data_len = type_marker_length(m) ? : len - m->offset;
 		const char *p = &prop->val.val[m->offset];
 
-		if (!has_data_type_information(m))
-			continue;
-
-		chunk_len = type_marker_length(m);
-		if (!chunk_len)
-			chunk_len = len - m->offset;
-
-		if (emit_type != TYPE_NONE)
-			fprintf(f, "%s, ", delim_end[emit_type]);
-		emit_type = m->type;
-
-		for_each_marker_of_type(m_label, LABEL) {
-			if (m_label->offset > m->offset)
-				break;
-			fprintf(f, "%s: ", m_label->ref);
-		}
-
-		fprintf(f, "%s", delim_start[emit_type]);
+		if (has_data_type_information(m)) {
+			emit_type = m->type;
+			fprintf(f, " %s", delim_start[emit_type]);
+		} else if (m->type == LABEL)
+			fprintf(f, " %s:", m->ref);
+		else if (m->offset)
+			fputc(' ', f);
 
-		if (chunk_len <= 0)
+		if (emit_type == TYPE_NONE) {
+			assert(chunk_len == 0);
 			continue;
+		}
 
 		switch(emit_type) {
 		case TYPE_UINT16:
@@ -268,15 +274,23 @@ static void write_propval(FILE *f, struct property *prop)
 		default:
 			write_propval_int(f, p, chunk_len, 1);
 		}
-	}
 
-	/* Wrap up any labels at the end of the value */
-	for_each_marker_of_type(m_label, LABEL) {
-		assert (m_label->offset == len);
-		fprintf(f, " %s:", m_label->ref);
+		if (chunk_len == data_len) {
+			size_t pos = m->offset + chunk_len;
+			fprintf(f, pos == len ? "%s" : "%s,",
+			        delim_end[emit_type] ? : "");
+			emit_type = TYPE_NONE;
+		}
 	}
-
-	fprintf(f, "%s;\n", delim_end[emit_type] ? : "");
+	fprintf(f, ";");
+	if (annotate) {
+		srcstr = srcpos_string_first(prop->srcpos, annotate);
+		if (srcstr) {
+			fprintf(f, " /* %s */", srcstr);
+			free(srcstr);
+		}
+	}
+	fprintf(f, "\n");
 }
 
 static void write_tree_source_node(FILE *f, struct node *tree, int level)
@@ -284,14 +298,24 @@ static void write_tree_source_node(FILE *f, struct node *tree, int level)
 	struct property *prop;
 	struct node *child;
 	struct label *l;
+	char *srcstr;
 
 	write_prefix(f, level);
 	for_each_label(tree->labels, l)
 		fprintf(f, "%s: ", l->label);
 	if (tree->name && (*tree->name))
-		fprintf(f, "%s {\n", tree->name);
+		fprintf(f, "%s {", tree->name);
 	else
-		fprintf(f, "/ {\n");
+		fprintf(f, "/ {");
+
+	if (annotate) {
+		srcstr = srcpos_string_first(tree->srcpos, annotate);
+		if (srcstr) {
+			fprintf(f, " /* %s */", srcstr);
+			free(srcstr);
+		}
+	}
+	fprintf(f, "\n");
 
 	for_each_property(tree, prop) {
 		write_prefix(f, level+1);
@@ -305,10 +329,17 @@ static void write_tree_source_node(FILE *f, struct node *tree, int level)
 		write_tree_source_node(f, child, level+1);
 	}
 	write_prefix(f, level);
-	fprintf(f, "};\n");
+	fprintf(f, "};");
+	if (annotate) {
+		srcstr = srcpos_string_last(tree->srcpos, annotate);
+		if (srcstr) {
+			fprintf(f, " /* %s */", srcstr);
+			free(srcstr);
+		}
+	}
+	fprintf(f, "\n");
 }
 
-
 void dt_to_source(FILE *f, struct dt_info *dti)
 {
 	struct reserve_info *re;