[PATCH] extcon: Add EXTCON_BATTERY type for battery presence

[andrew lien/WHQ/Wistron <andrew_lien@wistron.com>]

This information can be useful to device that support battery swap,
for example allowing them to indicate that a battery is present or not,
so provide a standard way to report it to userspace.

Signed-off-by: andrew lien/WHQ/Wistron <andrew_lien@wistron.com>
---
 drivers/extcon/extcon.c | 5 +++++
 include/linux/extcon.h  | 3 ++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c
index b4df4372f097..6c47d23244c3 100644
--- a/drivers/extcon/extcon.c
+++ b/drivers/extcon/extcon.c
@@ -184,6 +184,11 @@ static const struct __extcon_info {
 		.id = EXTCON_MECHANICAL,
 		.name = "MECHANICAL",
 	},
+	[EXTCON_BATTERY] = {
+		.type = EXTCON_TYPE_MISC,
+		.id = EXTCON_BATTERY,
+		.name = "BATTERY",
+	},
 
 	{ /* sentinel */ }
 };
diff --git a/include/linux/extcon.h b/include/linux/extcon.h
index b0b4abb018ee..88210b481b6c 100644
--- a/include/linux/extcon.h
+++ b/include/linux/extcon.h
@@ -81,8 +81,9 @@
 #define EXTCON_DOCK		60
 #define EXTCON_JIG		61
 #define EXTCON_MECHANICAL	62
+#define EXTCON_BATTERY		63
 
-#define EXTCON_NUM		63
+#define EXTCON_NUM		64
 
 /*
  * Define the properties of supported external connectors.
-- 
2.25.1