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1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause2%YAML 1.23---4$id: http://devicetree.org/schemas/leds/nxp,pca963x.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: NXP PCA963x LED controllers8 9maintainers:10 - Laurent Pinchart <laurent.pinchart@ideasonboard.com>11 12description: |13 The NXP PCA963x are I2C-controlled LED drivers optimized for14 Red/Green/Blue/Amber (RGBA) color mixing applications. Each LED is15 individually controllable and has its own PWM controller.16 17 Datasheets are available at18 19 - https://www.nxp.com/docs/en/data-sheet/PCA9632.pdf20 - https://www.nxp.com/docs/en/data-sheet/PCA9633.pdf21 - https://www.nxp.com/docs/en/data-sheet/PCA9634.pdf22 - https://www.nxp.com/docs/en/data-sheet/PCA9635.pdf23 24properties:25 compatible:26 enum:27 - nxp,pca963228 - nxp,pca963329 - nxp,pca963430 - nxp,pca963531 32 reg:33 maxItems: 134 35 "#address-cells":36 const: 137 38 "#size-cells":39 const: 040 41 nxp,hw-blink:42 type: boolean43 description:44 Use hardware blinking instead of software blinking45 46 nxp,inverted-out:47 type: boolean48 description:49 Invert the polarity of the generated PWM.50 51 nxp,period-scale:52 $ref: /schemas/types.yaml#/definitions/uint3253 description:54 In some configurations, the chip blinks faster than expected. This55 parameter provides a scaling ratio (fixed point, decimal divided by 1000)56 to compensate, e.g. 1300=1.3x and 750=0.75x.57 58 nxp,totem-pole:59 type: boolean60 description:61 Use totem pole (push-pull) instead of open-drain (pca9632 defaults to62 open-drain, newer chips to totem pole).63 64patternProperties:65 "^led@[0-9a-f]+$":66 type: object67 $ref: common.yaml#68 unevaluatedProperties: false69 70 properties:71 reg:72 minimum: 073 74 required:75 - reg76 77allOf:78 - if:79 properties:80 compatible:81 contains:82 enum:83 - nxp,pca963284 - nxp,pca963385 then:86 patternProperties:87 "^led@[0-9a-f]+$":88 properties:89 reg:90 maximum: 391 else:92 patternProperties:93 "^led@[0-9a-f]+$":94 properties:95 reg:96 maximum: 797 98additionalProperties: false99 100examples:101 - |102 #include <dt-bindings/leds/common.h>103 104 i2c {105 #address-cells = <1>;106 #size-cells = <0>;107 108 led-controller@62 {109 compatible = "nxp,pca9632";110 reg = <0x62>;111 #address-cells = <1>;112 #size-cells = <0>;113 114 led@0 {115 reg = <0>;116 color = <LED_COLOR_ID_RED>;117 function = LED_FUNCTION_STATUS;118 };119 120 led@1 {121 reg = <1>;122 color = <LED_COLOR_ID_GREEN>;123 function = LED_FUNCTION_STATUS;124 };125 126 led@2 {127 reg = <2>;128 color = <LED_COLOR_ID_BLUE>;129 function = LED_FUNCTION_STATUS;130 };131 132 led@3 {133 reg = <3>;134 color = <LED_COLOR_ID_WHITE>;135 function = LED_FUNCTION_STATUS;136 };137 };138 };139 140...141