linux-kernel - [PATCH 1/3] dt-bindings: power: supply: Add DT schema for richtek,rt5033-battery

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Message-Id: <20210517103554.168159-2-stephan@gerhold.net>
Date:   Mon, 17 May 2021 12:35:52 +0200
From:   Stephan Gerhold <stephan@...hold.net>
To:     Sebastian Reichel <sre@...nel.org>,
        Lee Jones <lee.jones@...aro.org>
Cc:     Rob Herring <robh+dt@...nel.org>, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Beomho Seo <beomho.seo@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Stephan Gerhold <stephan@...hold.net>
Subject: [PATCH 1/3] dt-bindings: power: supply: Add DT schema for richtek,rt5033-battery

The RT5033 PMIC provides a simple fuel gauge via I2C.
Add a DT schema to describe how to set it up in the device tree.

Note that although RT5033 is a MFD with lots of functionality
(also charger, regulator, LEDs, ...) the fuel gauge has a separate
I2C bus and is not part of the MFD.

Cc: Beomho Seo <beomho.seo@...sung.com>
Signed-off-by: Stephan Gerhold <stephan@...hold.net>
---
 .../power/supply/richtek,rt5033-battery.yaml  | 54 +++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/power/supply/richtek,rt5033-battery.yaml

diff --git a/Documentation/devicetree/bindings/power/supply/richtek,rt5033-battery.yaml b/Documentation/devicetree/bindings/power/supply/richtek,rt5033-battery.yaml
new file mode 100644
index 000000000000..ae647d3355a2
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/supply/richtek,rt5033-battery.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/power/supply/richtek,rt5033-battery.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Richtek RT5033 PMIC Fuel Gauge
+
+maintainers:
+  - Stephan Gerhold <stephan@...hold.net>
+
+allOf:
+  - $ref: power-supply.yaml#
+
+properties:
+  compatible:
+    const: richtek,rt5033-battery
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      battery@35 {
+        compatible = "richtek,rt5033-battery";
+        reg = <0x35>;
+      };
+    };
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      battery@35 {
+        compatible = "richtek,rt5033-battery";
+        reg = <0x35>;
+        interrupt-parent = <&msmgpio>;
+        interrupts = <121 IRQ_TYPE_EDGE_FALLING>;
+      };
+    };
-- 
2.31.1