X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=common%2Ffdt_support.c;h=9e501484625d8583cd1d122e8e6c83f9c6948ac5;hb=04e3c4eb930a761b561cb87f964aa8a5d694c501;hp=8266bca7d6489a2ca8fb6f1015064184b137d2dd;hpb=97cdf64026c7d749dd7a5c0dbaba7a60a7292ac9;p=oweals%2Fu-boot.git

diff --git a/common/fdt_support.c b/common/fdt_support.c
index 8266bca7d6..9e50148462 100644
--- a/common/fdt_support.c
+++ b/common/fdt_support.c
@@ -1533,7 +1533,7 @@ int fdt_setup_simplefb_node(void *fdt, int node, u64 base_address, u32 width,
 	if (ret < 0)
 		return ret;
 
-	snprintf(name, sizeof(name), "framebuffer@%llx", base_address);
+	snprintf(name, sizeof(name), "framebuffer@%" PRIx64, base_address);
 	ret = fdt_set_name(fdt, node, name);
 	if (ret < 0)
 		return ret;
@@ -1560,3 +1560,32 @@ int fdt_setup_simplefb_node(void *fdt, int node, u64 base_address, u32 width,
 
 	return 0;
 }
+
+/*
+ * Update native-mode in display-timings from display environment variable.
+ * The node to update are specified by path.
+ */
+int fdt_fixup_display(void *blob, const char *path, const char *display)
+{
+	int off, toff;
+
+	if (!display || !path)
+		return -FDT_ERR_NOTFOUND;
+
+	toff = fdt_path_offset(blob, path);
+	if (toff >= 0)
+		toff = fdt_subnode_offset(blob, toff, "display-timings");
+	if (toff < 0)
+		return toff;
+
+	for (off = fdt_first_subnode(blob, toff);
+	     off >= 0;
+	     off = fdt_next_subnode(blob, off)) {
+		uint32_t h = fdt_get_phandle(blob, off);
+		debug("%s:0x%x\n", fdt_get_name(blob, off, NULL),
+		      fdt32_to_cpu(h));
+		if (strcasecmp(fdt_get_name(blob, off, NULL), display) == 0)
+			return fdt_setprop_u32(blob, toff, "native-mode", h);
+	}
+	return toff;
+}