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Date:   Fri, 12 Jun 2020 12:05:18 +0800
From:   Pi-Hsun Shih <pihsun@...omium.org>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Pi-Hsun Shih <pihsun@...omium.org>,
        Nicolas Boichat <drinkcat@...omium.org>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Benson Leung <bleung@...omium.org>,
        Guenter Roeck <groeck@...omium.org>,
        linux-kernel@...r.kernel.org (open list:VOLTAGE AND CURRENT REGULATOR
        FRAMEWORK),
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS)
Subject: [PATCH v6 1/3] dt-bindings: regulator: Add DT binding for cros-ec-regulator

Add DT binding documentation for cros-ec-regulator, a voltage regulator
controlled by ChromeOS EC.

Signed-off-by: Pi-Hsun Shih <pihsun@...omium.org>
Reviewed-by: Enric Balletbo i Serra <enric.balletbo@...labora.com>
---
Changes from v5:
* No change

Changes from v4:
* Change compatible name from regulator-cros-ec to cros-ec-regulator.

Changes from v3:
* Fix dt bindings file name.
* Add full example.

Changes from v2:
* No change

Changes from v1:
* Change compatible string to google,regulator-cros-ec.
* Use reg property in device tree.
* Change license for dt binding according to checkpatch.pl.
---
 .../regulator/google,cros-ec-regulator.yaml   | 51 +++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/regulator/google,cros-ec-regulator.yaml

diff --git a/Documentation/devicetree/bindings/regulator/google,cros-ec-regulator.yaml b/Documentation/devicetree/bindings/regulator/google,cros-ec-regulator.yaml
new file mode 100644
index 000000000000..c9453d7ce227
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/google,cros-ec-regulator.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/google,cros-ec-regulator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ChromeOS EC controlled voltage regulators
+
+maintainers:
+  - Pi-Hsun Shih <pihsun@...omium.org>
+
+description:
+  Any property defined as part of the core regulator binding, defined in
+  regulator.yaml, can also be used.
+
+allOf:
+  - $ref: "regulator.yaml#"
+
+properties:
+  compatible:
+    const: google,cros-ec-regulator
+
+  reg:
+    maxItems: 1
+    description: Identifier for the voltage regulator to ChromeOS EC.
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    spi0 {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        cros_ec: ec@0 {
+            compatible = "google,cros-ec-spi";
+            reg = <0>;
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            regulator@0 {
+                compatible = "google,cros-ec-regulator";
+                regulator-min-microvolt = <1800000>;
+                regulator-max-microvolt = <3300000>;
+                reg = <0>;
+            };
+        };
+    };
+...
-- 
2.27.0.290.gba653c62da-goog

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