[PATCH 1/2] dt-bindings: backlight: Add Orient Chip OCP8178

Add device tree bindings for the Orient Chip OCP8178 LED backlight
driver.

Signed-off-by: Wim de With <[email protected]>
---
 .../bindings/leds/backlight/ocs,ocp8178.yaml  | 46 +++++++++++++++++++
 MAINTAINERS                                   |  5 ++
 2 files changed, 51 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/leds/backlight/ocs,ocp8178.yaml

diff --git a/Documentation/devicetree/bindings/leds/backlight/ocs,ocp8178.yaml b/Documentation/devicetree/bindings/leds/backlight/ocs,ocp8178.yaml
new file mode 100644
index 0000000000000..9a4df1ef91edd
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/backlight/ocs,ocp8178.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/backlight/ocs,ocp8178.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Orient Chip OCP8178 backlight
+
+maintainers:
+  - Wim de With <[email protected]>
+
+description: |
+  The Orient Chip OCP8178 is a white LED backlight driver controlled by a single
+  GPIO line with a vendor-specific onewire protocol.
+
+allOf:
+  - $ref: common.yaml#
+
+properties:
+  compatible:
+    const: ocs,ocp8178
+
+  enable-gpios:
+    description: GPIO to use to enable/disable and dim the backlight.
+    maxItems: 1
+
+  default-brightness:
+    maximum: 31
+  max-brightness:
+    maximum: 31
+
+required:
+  - compatible
+  - enable-gpios
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    backlight {
+        compatible = "ocs,ocp8178";
+        enable-gpios = <&gpio2 5 GPIO_ACTIVE_HIGH>;
+        default-brightness = <13>;
+        max-brightness = <31>;
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index cfee5d47b214d..3ca99d9c32ef1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19678,6 +19678,11 @@ F:	drivers/mfd/ocelot*
 F:	drivers/net/dsa/ocelot/ocelot_ext.c
 F:	include/linux/mfd/ocelot.h
 
+OCP8178 BACKLIGHT DRIVER
+M:	Wim de With <[email protected]>
+S:	Maintained
+F:	Documentation/devicetree/bindings/leds/backlight/ocs,ocp8178.yaml
+
 OCXL (Open Coherent Accelerator Processor Interface OpenCAPI) DRIVER
 M:	Mahesh J Salgaonkar <[email protected]>
 R:	Andrew Donnellan <[email protected]>
-- 
2.55.0