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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/mfd/netronix,ntxec.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Netronix Embedded Controller
maintainers:
- Jonathan Neuschäfer <j.neuschaefer@gmx.net>
description: |
This EC is found in e-book readers of multiple brands (e.g. Kobo, Tolino), and
is typically implemented as a TI MSP430 microcontroller.
properties:
compatible:
const: netronix,ntxec
reg:
items:
- description: The I2C address of the EC
system-power-controller:
type: boolean
description: See Documentation/devicetree/bindings/power/power-controller.txt
interrupts:
minItems: 1
description:
The EC can signal interrupts via a GPIO line
"#pwm-cells":
const: 2
description: |
Number of cells in a PWM specifier.
The following PWM channels are supported:
- 0: The PWM channel controlled by registers 0xa1-0xa7
required:
- compatible
- reg
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
ec: embedded-controller@43 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_ntxec>;
compatible = "netronix,ntxec";
reg = <0x43>;
system-power-controller;
interrupt-parent = <&gpio4>;
interrupts = <11 IRQ_TYPE_EDGE_FALLING>;
#pwm-cells = <2>;
};
};
backlight {
compatible = "pwm-backlight";
pwms = <&ec 0 50000>;
power-supply = <&backlight_regulator>;
};
backlight_regulator: regulator-dummy {
compatible = "regulator-fixed";
regulator-name = "backlight";
};
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