linux-kernel - [PATCH 1/2] dt-bindings: power: supply: ltc3350-charger: Add bindings

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Date: Mon, 8 Apr 2024 08:49:04 +0200
From: Mike Looijmans <mike.looijmans@...ic.nl>
To: linux-pm@...r.kernel.org
CC: Mike Looijmans <mike.looijmans@...ic.nl>,
	Conor Dooley <conor+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Rob Herring <robh@...nel.org>,
	Sebastian Reichel <sre@...nel.org>,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] dt-bindings: power: supply: ltc3350-charger: Add bindings

The LTC3350 is a backup power controller that can charge and monitor
a series stack of one to four supercapacitors.

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

 .../bindings/power/supply/ltc3350.yaml        | 55 +++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/power/supply/ltc3350.yaml

diff --git a/Documentation/devicetree/bindings/power/supply/ltc3350.yaml b/Documentation/devicetree/bindings/power/supply/ltc3350.yaml
new file mode 100644
index 000000000000..607a62fd25ba
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/supply/ltc3350.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright (C) 2024 Topic Embedded Products
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/supply/ltc3350.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Linear Technology (Analog Devices) LTC3350 Supercap Charger
+
+maintainers:
+  - Mike Looijmans <mike.looijmans@...ic.nl>
+
+description: |
+  The LTC3350 is a  High Current Supercapacitor Backup Controller and System
+  Monitor.
+  Specifications about the charger can be found at:
+    https://www.analog.com/en/products/ltc3350.html
+
+properties:
+  compatible:
+    enum:
+      - lltc,ltc3350
+
+  reg:
+    maxItems: 1
+    description: I2C address of the charger.
+
+  lltc,rsnsc-micro-ohms:
+    description: Capacitor charger sense resistor in microohm.
+    minimum: 1000
+
+  lltc,rsnsi-micro-ohms:
+    description: Input current sense resistor in microohm.
+    minimum: 1000
+
+required:
+  - compatible
+  - reg
+  - lltc,rsnsc-micro-ohms
+  - lltc,rsnsi-micro-ohms
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+      charger: battery-charger@9 {
+              compatible = "lltc,ltc3350";
+              reg = <0x9>;
+              lltc,rsnsc-micro-ohms = <10000>;
+              lltc,rsnsi-micro-ohms = <10000>;
+      };
+    };
-- 
2.34.1


Met vriendelijke groet / kind regards,

Mike Looijmans
System Expert


TOPIC Embedded Products B.V.
Materiaalweg 4, 5681 RJ Best
The Netherlands

T: +31 (0) 499 33 69 69
E: mike.looijmans@...ic.nl
W: www.topic.nl

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