The original commit that introduced this function (fb11ffe74c794a)
indicated that calling it from the architecture code was one possible
use case. Let's declare it in of_fdt.h to make it a public API.
Signed-off-by: Kevin Cernekee <cernekee@xxxxxxxxx>
---
include/linux/of_fdt.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index 0ff360d..5d233df 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -12,6 +12,7 @@
#ifndef _LINUX_OF_FDT_H
#define _LINUX_OF_FDT_H
+#include <linux/errno.h>
#include <linux/types.h>
#include <linux/init.h>
@@ -87,6 +88,13 @@ extern void early_init_devtree(void *);
extern void early_get_first_memblock_info(void *, phys_addr_t *);
extern u64 fdt_translate_address(const void *blob, int node_offset);
extern void of_fdt_limit_memory(int limit);
+
+#if defined(CONFIG_SERIAL_EARLYCON)
+extern int early_init_dt_scan_chosen_serial(void);
+#else
+static inline int early_init_dt_scan_chosen_serial(void) { return -ENOENT; }
+#endif
+
#else /* CONFIG_OF_FLATTREE */
static inline void early_init_fdt_scan_reserved_mem(void) {}
static inline const char *of_flat_dt_get_machine_name(void) { return NULL; }
--
2.1.1
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