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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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a004f24270
Convert the pca963x DT bindings to YAML schema. The existing properties are kept without modification, but the example is adapted to the latest common bindings for LEDs. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20240305004501.849-1-laurent.pinchart@ideasonboard.com Signed-off-by: Lee Jones <lee@kernel.org>
141 lines
3.2 KiB
YAML
141 lines
3.2 KiB
YAML
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/leds/nxp,pca963x.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: NXP PCA963x LED controllers
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maintainers:
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- Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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description: |
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The NXP PCA963x are I2C-controlled LED drivers optimized for
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Red/Green/Blue/Amber (RGBA) color mixing applications. Each LED is
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individually controllable and has its own PWM controller.
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Datasheets are available at
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- https://www.nxp.com/docs/en/data-sheet/PCA9632.pdf
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- https://www.nxp.com/docs/en/data-sheet/PCA9633.pdf
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- https://www.nxp.com/docs/en/data-sheet/PCA9634.pdf
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- https://www.nxp.com/docs/en/data-sheet/PCA9635.pdf
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properties:
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compatible:
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enum:
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- nxp,pca9632
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- nxp,pca9633
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- nxp,pca9634
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- nxp,pca9635
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reg:
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maxItems: 1
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"#address-cells":
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const: 1
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"#size-cells":
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const: 0
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nxp,hw-blink:
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type: boolean
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description:
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Use hardware blinking instead of software blinking
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nxp,inverted-out:
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type: boolean
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description:
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Invert the polarity of the generated PWM.
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nxp,period-scale:
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$ref: /schemas/types.yaml#/definitions/uint32
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description:
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In some configurations, the chip blinks faster than expected. This
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parameter provides a scaling ratio (fixed point, decimal divided by 1000)
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to compensate, e.g. 1300=1.3x and 750=0.75x.
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nxp,totem-pole:
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type: boolean
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description:
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Use totem pole (push-pull) instead of open-drain (pca9632 defaults to
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open-drain, newer chips to totem pole).
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patternProperties:
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"^led@[0-9a-f]+$":
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type: object
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$ref: common.yaml#
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unevaluatedProperties: false
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properties:
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reg:
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minimum: 0
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required:
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- reg
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allOf:
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- if:
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properties:
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compatible:
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contains:
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enum:
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- nxp,pca9632
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- nxp,pca9633
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then:
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patternProperties:
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"^led@[0-9a-f]+$":
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properties:
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reg:
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maximum: 3
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else:
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patternProperties:
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"^led@[0-9a-f]+$":
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properties:
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reg:
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maximum: 7
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/leds/common.h>
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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led-controller@62 {
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compatible = "nxp,pca9632";
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reg = <0x62>;
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#address-cells = <1>;
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#size-cells = <0>;
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led@0 {
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reg = <0>;
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color = <LED_COLOR_ID_RED>;
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function = LED_FUNCTION_STATUS;
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};
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led@1 {
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reg = <1>;
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color = <LED_COLOR_ID_GREEN>;
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function = LED_FUNCTION_STATUS;
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};
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led@2 {
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reg = <2>;
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color = <LED_COLOR_ID_BLUE>;
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function = LED_FUNCTION_STATUS;
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};
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led@3 {
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reg = <3>;
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color = <LED_COLOR_ID_WHITE>;
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function = LED_FUNCTION_STATUS;
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};
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};
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};
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...
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