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From: Mike Looijmans <mike.looijmans@topic.nl>
To: linux-pm@vger.kernel.org
CC: Mike Looijmans <mike.looijmans@topic.nl>,
	Sebastian Reichel <sre@kernel.org>,
	linux-kernel@vger.kernel.org
Subject: [PATCH v4 2/5] power: supply: core: Add POWER_SUPPLY_TECHNOLOGY_CAPACITOR
Date: Mon, 15 Apr 2024 10:13:02 +0200
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Another technology to store energy is a (super)capacitor.

Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
---

(no changes since v1)

 Documentation/ABI/testing/sysfs-class-power | 2 +-
 drivers/power/supply/power_supply_core.c    | 2 ++
 drivers/power/supply/power_supply_sysfs.c   | 1 +
 include/linux/power_supply.h                | 1 +
 4 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/AB=
I/testing/sysfs-class-power
index 7c81f0a25a48..1f6a04a17c81 100644
--- a/Documentation/ABI/testing/sysfs-class-power
+++ b/Documentation/ABI/testing/sysfs-class-power
@@ -488,7 +488,7 @@ Description:
=20
 		Valid values:
 			      "Unknown", "NiMH", "Li-ion", "Li-poly", "LiFe",
-			      "NiCd", "LiMn"
+			      "NiCd", "LiMn", "Capacitor"
=20
=20
 What:		/sys/class/power_supply/<supply_name>/voltage_avg,
diff --git a/drivers/power/supply/power_supply_core.c b/drivers/power/suppl=
y/power_supply_core.c
index fefe938c9342..6d1327e16ff6 100644
--- a/drivers/power/supply/power_supply_core.c
+++ b/drivers/power/supply/power_supply_core.c
@@ -686,6 +686,8 @@ int power_supply_get_battery_info(struct power_supply *=
psy,
 			info->technology =3D POWER_SUPPLY_TECHNOLOGY_LiFe;
 		else if (!strcmp("lithium-ion-manganese-oxide", value))
 			info->technology =3D POWER_SUPPLY_TECHNOLOGY_LiMn;
+		else if (!strcmp("capacitor", value))
+			info->technology =3D POWER_SUPPLY_TECHNOLOGY_CAPACITOR;
 		else
 			dev_warn(&psy->dev, "%s unknown battery type\n", value);
 	}
diff --git a/drivers/power/supply/power_supply_sysfs.c b/drivers/power/supp=
ly/power_supply_sysfs.c
index 0d2c3724d0bc..9d8540ce1f7e 100644
--- a/drivers/power/supply/power_supply_sysfs.c
+++ b/drivers/power/supply/power_supply_sysfs.c
@@ -119,6 +119,7 @@ static const char * const POWER_SUPPLY_TECHNOLOGY_TEXT[=
] =3D {
 	[POWER_SUPPLY_TECHNOLOGY_LiFe]		=3D "LiFe",
 	[POWER_SUPPLY_TECHNOLOGY_NiCd]		=3D "NiCd",
 	[POWER_SUPPLY_TECHNOLOGY_LiMn]		=3D "LiMn",
+	[POWER_SUPPLY_TECHNOLOGY_CAPACITOR]	=3D "Capacitor",
 };
=20
 static const char * const POWER_SUPPLY_CAPACITY_LEVEL_TEXT[] =3D {
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index 8e5705a56b85..af5a4e700881 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -78,6 +78,7 @@ enum {
 	POWER_SUPPLY_TECHNOLOGY_LiFe,
 	POWER_SUPPLY_TECHNOLOGY_NiCd,
 	POWER_SUPPLY_TECHNOLOGY_LiMn,
+	POWER_SUPPLY_TECHNOLOGY_CAPACITOR,
 };
=20
 enum {
--=20
2.34.1


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