diff options
| author | Maud Spierings <maudspierings@gocontroll.com> | 2026-04-07 16:41:42 +0200 |
|---|---|---|
| committer | Lee Jones <lee@kernel.org> | 2026-04-30 14:53:00 +0100 |
| commit | 5fcbbedec9dfce78044eee922bf2030e1bd03faa (patch) | |
| tree | 24f9d64ce70a08558ab502b1902fbc231ecbc47c | |
| parent | f37f5a2ac9d3737617c08f0dc7270b42e9cad907 (diff) | |
dt-bindings: backlight: Add max25014 support
The Maxim MAX25014 is a 4-channel automotive grade backlight driver IC
with integrated boost controller.
Signed-off-by: Maud Spierings <maudspierings@gocontroll.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Daniel Thompson (RISCstar) <danielt@kernel.org>
Link: https://patch.msgid.link/20260407-max25014-v8-1-14eac7ed673a@gocontroll.com
Signed-off-by: Lee Jones <lee@kernel.org>
| -rw-r--r-- | Documentation/devicetree/bindings/leds/backlight/maxim,max25014.yaml | 83 | ||||
| -rw-r--r-- | MAINTAINERS | 5 |
2 files changed, 88 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/leds/backlight/maxim,max25014.yaml b/Documentation/devicetree/bindings/leds/backlight/maxim,max25014.yaml new file mode 100644 index 000000000000..d00be2e08193 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/backlight/maxim,max25014.yaml @@ -0,0 +1,83 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/leds/backlight/maxim,max25014.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Maxim max25014 backlight controller + +maintainers: + - Maud Spierings <maudspierings@gocontroll.com> + +properties: + compatible: + enum: + - maxim,max25014 + + reg: + maxItems: 1 + + default-brightness: + minimum: 0 + maximum: 100 + default: 50 + + enable-gpios: + maxItems: 1 + + interrupts: + maxItems: 1 + + power-supply: + description: Regulator which controls the boost converter input rail. + + pwms: + maxItems: 1 + + maxim,iset: + $ref: /schemas/types.yaml#/definitions/uint32 + maximum: 15 + default: 11 + description: + Value of the ISET field in the ISET register. This controls the current + scale of the outputs, a higher number means more current. + + maxim,strings: + $ref: /schemas/types.yaml#/definitions/uint32-array + description: + A 4-bit bitfield that describes which led strings to turn on. + minItems: 4 + maxItems: 4 + items: + maximum: 1 + default: + [1 1 1 1] + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/interrupt-controller/irq.h> + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + backlight@6f { + compatible = "maxim,max25014"; + reg = <0x6f>; + default-brightness = <50>; + enable-gpios = <&gpio1 4 GPIO_ACTIVE_HIGH>; + interrupt-parent = <&gpio1>; + interrupts = <2 IRQ_TYPE_EDGE_FALLING>; + power-supply = <®_backlight>; + pwms = <&pwm1>; + maxim,iset = <7>; + maxim,strings = <1 1 1 0>; + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 2fb1c75afd16..50569fd26960 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -15673,6 +15673,11 @@ F: Documentation/userspace-api/media/drivers/max2175.rst F: drivers/media/i2c/max2175* F: include/uapi/linux/max2175.h +MAX25014 BACKLIGHT DRIVER +M: Maud Spierings <maudspierings@gocontroll.com> +S: Maintained +F: Documentation/devicetree/bindings/leds/backlight/maxim,max25014.yaml + MAX31335 RTC DRIVER M: Antoniu Miclaus <antoniu.miclaus@analog.com> L: linux-rtc@vger.kernel.org |