stm32mp1: make dt_get_stdout_node_offset() static

Do not export function dt_get_stdout_node_offset() that is used only inside
stm32mp_dt.c source file.

Change-Id: I9dd3dbfab21d42ed81c68723e71fe5a7586dce93
Signed-off-by: Yann Gautier <yann.gautier@st.com>

plat/st/common/include/stm32mp_dt.h

@@ -36,7 +36,6 @@ int dt_set_stdout_pinctrl(void);
 void dt_fill_device_info(struct dt_node_info *info, int node);
 int dt_get_node(struct dt_node_info *info, int offset, const char *compat);
 int dt_get_stdout_uart_info(struct dt_node_info *info);
-int dt_get_stdout_node_offset(void);
 uint32_t dt_get_ddr_size(void);
 uintptr_t dt_get_ddrctrl_base(void);
 uintptr_t dt_get_ddrphyc_base(void);

plat/st/common/stm32mp_dt.c

@@ -145,6 +145,52 @@ int fdt_read_uint32_array(int node, const char *prop_name, uint32_t *array,
 	return 0;
 }
 
+/*******************************************************************************
+ * This function gets the stdout path node.
+ * It reads the value indicated inside the device tree.
+ * Returns node offset on success and a negative FDT error code on failure.
+ ******************************************************************************/
+static int dt_get_stdout_node_offset(void)
+{
+	int node;
+	const char *cchar;
+
+	node = fdt_path_offset(fdt, "/secure-chosen");
+	if (node < 0) {
+		node = fdt_path_offset(fdt, "/chosen");
+		if (node < 0) {
+			return -FDT_ERR_NOTFOUND;
+		}
+	}
+
+	cchar = fdt_getprop(fdt, node, "stdout-path", NULL);
+	if (cchar == NULL) {
+		return -FDT_ERR_NOTFOUND;
+	}
+
+	node = -FDT_ERR_NOTFOUND;
+	if (strchr(cchar, (int)':') != NULL) {
+		const char *name;
+		char *str = (char *)cchar;
+		int len = 0;
+
+		while (strncmp(":", str, 1)) {
+			len++;
+			str++;
+		}
+
+		name = fdt_get_alias_namelen(fdt, cchar, len);
+
+		if (name != NULL) {
+			node = fdt_path_offset(fdt, name);
+		}
+	} else {
+		node = fdt_path_offset(fdt, cchar);
+	}
+
+	return node;
+}
+
 /*******************************************************************************
  * This function gets the stdout pin configuration information from the DT.
  * And then calls the sub-function to treat it and set GPIO registers.
@@ -231,49 +277,6 @@ int dt_get_stdout_uart_info(struct dt_node_info *info)
 	return node;
 }
 
-/*******************************************************************************
- * This function gets the stdout path node.
- * It reads the value indicated inside the device tree.
- * Returns node if success, and a negative value else.
- ******************************************************************************/
-int dt_get_stdout_node_offset(void)
-{
-	int node;
-	const char *cchar;
-
-	node = fdt_path_offset(fdt, "/chosen");
-	if (node < 0) {
-		return -FDT_ERR_NOTFOUND;
-	}
-
-	cchar = fdt_getprop(fdt, node, "stdout-path", NULL);
-	if (cchar == NULL) {
-		return -FDT_ERR_NOTFOUND;
-	}
-
-	node = -FDT_ERR_NOTFOUND;
-	if (strchr(cchar, (int)':') != NULL) {
-		const char *name;
-		char *str = (char *)cchar;
-		int len = 0;
-
-		while (strncmp(":", str, 1)) {
-			len++;
-			str++;
-		}
-
-		name = fdt_get_alias_namelen(fdt, cchar, len);
-
-		if (name != NULL) {
-			node = fdt_path_offset(fdt, name);
-		}
-	} else {
-		node = fdt_path_offset(fdt, cchar);
-	}
-
-	return node;
-}
-
 /*******************************************************************************
  * This function gets DDR size information from the DT.
  * Returns value in bytes on success, and 0 on failure.