linux-kernel - [PATCH] extcon: Add EXTCON_BATTERY type for battery presence

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Message-ID: <20230110023656.1334114-1-andrew_lien@wistron.com>
Date:   Tue, 10 Jan 2023 10:36:56 +0800
From:   andrew lien/WHQ/Wistron <andrew_lien@...tron.com>
To:     <myungjoo.ham@...sung.com>
CC:     <cw00.choi@...sung.com>, <linux-kernel@...r.kernel.org>,
        "andrew lien/WHQ/Wistron" <andrew_lien@...tron.com>
Subject: [PATCH] extcon: Add EXTCON_BATTERY type for battery presence

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@...tron.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