fdt: Tidy debugging, add to fdtdec_get_int/addr()

The new debugging shows the value of integers and addresses read
from the device tree and tidy up GPIO output.

Signed-off-by: Simon Glass <sjg@chromium.org>

lib/fdtdec.c

@@ -79,11 +79,16 @@ fdt_addr_t fdtdec_get_addr(const void *blob, int node,
 	const fdt_addr_t *cell;
 	int len;
 
-	debug("get_addr: %s\n", prop_name);
+	debug("%s: %s: ", __func__, prop_name);
 	cell = fdt_getprop(blob, node, prop_name, &len);
 	if (cell && (len == sizeof(fdt_addr_t) ||
-			len == sizeof(fdt_addr_t) * 2))
-		return fdt_addr_to_cpu(*cell);
+			len == sizeof(fdt_addr_t) * 2)) {
+		fdt_addr_t addr = fdt_addr_to_cpu(*cell);
+
+		debug("%p\n", (void *)addr);
+		return addr;
+	}
+	debug("(not found)\n");
 	return FDT_ADDR_T_NONE;
 }
 
@@ -93,10 +98,15 @@ s32 fdtdec_get_int(const void *blob, int node, const char *prop_name,
 	const s32 *cell;
 	int len;
 
-	debug("get_size: %s\n", prop_name);
+	debug("%s: %s: ", __func__, prop_name);
 	cell = fdt_getprop(blob, node, prop_name, &len);
-	if (cell && len >= sizeof(s32))
-		return fdt32_to_cpu(cell[0]);
+	if (cell && len >= sizeof(s32)) {
+		s32 val = fdt32_to_cpu(cell[0]);
+
+		debug("%#x (%d)\n", val, val);
+		return val;
+	}
+	debug("(not found)\n");
 	return default_val;
 }
 
@@ -328,6 +338,7 @@ int fdtdec_lookup_phandle(const void *blob, int node, const char *prop_name)
 	const u32 *phandle;
 	int lookup;
 
+	debug("%s: %s\n", __func__, prop_name);
 	phandle = fdt_getprop(blob, node, prop_name, NULL);
 	if (!phandle)
 		return -FDT_ERR_NOTFOUND;
@@ -427,7 +438,7 @@ static int fdtdec_decode_gpios(const void *blob, int node,
 	assert(max_count > 0);
 	prop = fdt_get_property(blob, node, prop_name, &len);
 	if (!prop) {
-		debug("FDT: %s: property '%s' missing\n", __func__, prop_name);
+		debug("%s: property '%s' missing\n", __func__, prop_name);
 		return -FDT_ERR_NOTFOUND;
 	}
 
@@ -436,7 +447,7 @@ static int fdtdec_decode_gpios(const void *blob, int node,
 	cell = (u32 *)prop->data;
 	len /= sizeof(u32) * 3;		/* 3 cells per GPIO record */
 	if (len > max_count) {
-		debug("FDT: %s: too many GPIOs / cells for "
+		debug(" %s: too many GPIOs / cells for "
 			"property '%s'\n", __func__, prop_name);
 		return -FDT_ERR_BADLAYOUT;
 	}