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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";
+ };