Thread (5 messages) 5 messages, 3 authors, 2021-08-14

[PATCH 1/2 v2] dt-bindings: power: Extend battery bindings with type

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STALE1891d

From: Linus Walleij <hidden>
Date: 2021-08-05 09:00:36
Also in: linux-pm
Subsystem: open firmware and flattened device tree bindings, power supply class/subsystem and drivers, the rest · Maintainers: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Sebastian Reichel, Linus Torvalds

This adds a battery-type property and bindings for the different
"technologies" that are used in Linux. More types can be added.

This is needed to convert the custom ST-Ericsson AB8500 battery
properties over to the generic battery bindings.

Cc: devicetree@vger.kernel.org
Signed-off-by: Linus Walleij <redacted>
---
ChangeLog v1->v2:
- Add devicetree list to Cc
- Use "device-chemistry" instead of "battery-type" as this
  has precedence in standards.
I need a bunch of new bindings for switch the STE AB8500 custom
bindings out, but I need to start somewhere, this is as good as
any place to start.
---
 .../devicetree/bindings/power/supply/battery.yaml  | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
diff --git a/Documentation/devicetree/bindings/power/supply/battery.yaml b/Documentation/devicetree/bindings/power/supply/battery.yaml
index c3b4b7543591..d56ac484fec5 100644
--- a/Documentation/devicetree/bindings/power/supply/battery.yaml
+++ b/Documentation/devicetree/bindings/power/supply/battery.yaml
@@ -31,6 +31,20 @@ properties:
   compatible:
     const: simple-battery
 
+  device-chemistry:
+    description: This describes the chemical technology of the battery.
+    oneOf:
+      - const: nickel-cadmium
+      - const: nickel-metal-hydride
+      - const: lithium-ion
+        description: This is a blanket type for all lithium-ion batteries,
+          including those below. If possible, a precise compatible string
+          from below should be used, but sometimes it is unknown which specific
+          lithium ion battery is employed and this wide compatible can be used.
+      - const: lithium-ion-polymer
+      - const: lithium-ion-iron-phosphate
+      - const: lithium-ion-manganese-oxide
+
   over-voltage-threshold-microvolt:
     description: battery over-voltage limit
 
-- 
2.31.1
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