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76 lines
1.9 KiB
76 lines
1.9 KiB
# 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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$id: http://devicetree.org/schemas/mfd/netronix,ntxec.yaml# |
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$schema: http://devicetree.org/meta-schemas/core.yaml# |
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title: Netronix Embedded Controller |
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maintainers: |
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- Jonathan Neuschäfer <[email protected]> |
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description: | |
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This EC is found in e-book readers of multiple brands (e.g. Kobo, Tolino), and |
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is typically implemented as a TI MSP430 microcontroller. |
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properties: |
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compatible: |
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const: netronix,ntxec |
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reg: |
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items: |
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- description: The I2C address of the EC |
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system-power-controller: |
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type: boolean |
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description: See Documentation/devicetree/bindings/power/power-controller.txt |
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interrupts: |
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minItems: 1 |
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description: |
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The EC can signal interrupts via a GPIO line |
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"#pwm-cells": |
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const: 2 |
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description: | |
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Number of cells in a PWM specifier. |
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The following PWM channels are supported: |
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- 0: The PWM channel controlled by registers 0xa1-0xa7 |
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required: |
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- compatible |
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- reg |
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additionalProperties: false |
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examples: |
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- | |
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#include <dt-bindings/interrupt-controller/irq.h> |
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i2c { |
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#address-cells = <1>; |
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#size-cells = <0>; |
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ec: embedded-controller@43 { |
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pinctrl-names = "default"; |
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pinctrl-0 = <&pinctrl_ntxec>; |
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compatible = "netronix,ntxec"; |
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reg = <0x43>; |
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system-power-controller; |
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interrupt-parent = <&gpio4>; |
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interrupts = <11 IRQ_TYPE_EDGE_FALLING>; |
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#pwm-cells = <2>; |
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}; |
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}; |
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backlight { |
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compatible = "pwm-backlight"; |
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pwms = <&ec 0 50000>; |
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power-supply = <&backlight_regulator>; |
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}; |
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backlight_regulator: regulator-dummy { |
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compatible = "regulator-fixed"; |
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regulator-name = "backlight"; |
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};
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