77 lines
1.9 KiB
YAML
77 lines
1.9 KiB
YAML
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# 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 <j.neuschaefer@gmx.net>
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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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