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Date:   Mon, 14 Feb 2022 13:36:44 +0800
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Subject: [PATCH 3/5] dt-bindings: add google,cros-kbd-led-backlight
From:   Tzung-Bi Shih <tzungbi@google.com>
To:     bleung@chromium.org, groeck@chromium.org, robh+dt@kernel.org
Cc:     chrome-platform@lists.linux.dev, tzungbi@google.com,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
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Precedence: bulk

Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
---
 .../chrome/google,cros-kbd-led-backlight.yaml | 35 +++++++++++++++++++
 .../bindings/mfd/google,cros-ec.yaml          |  3 ++
 2 files changed, 38 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/chrome/google,cros-kbd-led-backlight.yaml

diff --git a/Documentation/devicetree/bindings/chrome/google,cros-kbd-led-backlight.yaml b/Documentation/devicetree/bindings/chrome/google,cros-kbd-led-backlight.yaml
new file mode 100644
index 000000000000..104299e09cbb
--- /dev/null
+++ b/Documentation/devicetree/bindings/chrome/google,cros-kbd-led-backlight.yaml
@@ -0,0 +1,35 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/chrome/google,cros-kbd-led-backlight.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ChromeOS keyboard backlight LED driver.
+
+maintainers:
+  - Tzung-Bi Shih <tzungbi@google.com>
+
+properties:
+  compatible:
+    const: google,cros-kbd-led-backlight
+
+required:
+  - compatible
+
+additionalProperties: false
+
+examples:
+  - |
+    spi0 {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      cros_ec: ec@0 {
+        compatible = "google,cros-ec-spi";
+        reg = <0>;
+
+        kbd-led-backlight {
+          compatible = "google,cros-kbd-led-backlight";
+        };
+      };
+    };
diff --git a/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml b/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
index d1f53bd449f7..1815ca0e8ebc 100644
--- a/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
+++ b/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
@@ -90,6 +90,9 @@ properties:
   ec-pwm:
     $ref: "/schemas/pwm/google,cros-ec-pwm.yaml#"
 
+  kbd-led-backlight:
+    $ref: "/schemas/chrome/google,cros-kbd-led-backlight.yaml#"
+
   keyboard-controller:
     $ref: "/schemas/input/google,cros-ec-keyb.yaml#"
 
-- 
2.35.1.265.g69c8d7142f-goog