[PATCH 1/2] dt-bindings: backlight: Add Orient Chip OCP8178
From: Wim de With <hidden>
Date: 2026-08-06 20:26:41
Also in:
dri-devel, linux-devicetree, linux-leds, lkml
Subsystem:
led subsystem, open firmware and flattened device tree bindings, the rest · Maintainers:
Lee Jones, Pavel Machek, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Add device tree bindings for the Orient Chip OCP8178 LED backlight driver. Signed-off-by: Wim de With <redacted> --- .../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 <wf@dewith.io> + +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 <wf@dewith.io> +S: Maintained +F: Documentation/devicetree/bindings/leds/backlight/ocs,ocp8178.yaml + OCXL (Open Coherent Accelerator Processor Interface OpenCAPI) DRIVER M: Mahesh J Salgaonkar <mahesh@linux.ibm.com> R: Andrew Donnellan <andrew+kernel@donnellan.id.au>
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2.55.0