dt-bindings: serial: max310x: convert to YAML
Convert binding from text format to YAML. Additions to original text binding: - add rs485 reference. Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20231012152647.2607455-1-hugo@hugovil.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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* Maxim MAX310X advanced Universal Asynchronous Receiver-Transmitter (UART)
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Required properties:
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- compatible: Should be one of the following:
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- "maxim,max3107" for Maxim MAX3107,
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- "maxim,max3108" for Maxim MAX3108,
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- "maxim,max3109" for Maxim MAX3109,
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- "maxim,max14830" for Maxim MAX14830.
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- reg: SPI chip select number.
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- interrupts: Specifies the interrupt source of the parent interrupt
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controller. The format of the interrupt specifier depends on the
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parent interrupt controller.
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- clocks: phandle to the IC source clock.
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- clock-names: Should be "xtal" if clock is an external crystal or
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"osc" if an external clock source is used.
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Optional properties:
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- gpio-controller: Marks the device node as a GPIO controller.
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- #gpio-cells: Should be two. The first cell is the GPIO number and
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the second cell is used to specify the GPIO polarity:
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0 = active high,
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1 = active low.
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Example:
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/ {
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clocks {
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spi_uart_clk: osc_max14830 {
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compatible = "fixed-clock";
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#clock-cells = <0>;
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clock-frequency = <3686400>;
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};
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};
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};
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&spi0 {
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max14830: max14830@0 {
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compatible = "maxim,max14830";
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reg = <0>;
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clocks = <&spi_uart_clk>;
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clock-names = "osc";
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interrupt-parent = <&gpio3>;
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interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
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gpio-controller;
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#gpio-cells = <2>;
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};
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};
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@ -0,0 +1,74 @@
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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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$id: http://devicetree.org/schemas/serial/maxim,max310x.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Maxim MAX310X Advanced Universal Asynchronous Receiver-Transmitter (UART)
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maintainers:
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- Hugo Villeneuve <hvilleneuve@dimonoff.com>
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properties:
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compatible:
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enum:
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- maxim,max3107
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- maxim,max3108
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- maxim,max3109
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- maxim,max14830
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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clocks:
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maxItems: 1
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clock-names:
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enum:
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- xtal # External crystal
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- osc # External clock source
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gpio-controller: true
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"#gpio-cells":
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const: 2
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gpio-line-names:
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minItems: 1
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maxItems: 16
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required:
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- compatible
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- reg
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- interrupts
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- clocks
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- clock-names
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allOf:
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- $ref: /schemas/spi/spi-peripheral-props.yaml#
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- $ref: /schemas/serial/serial.yaml#
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- $ref: /schemas/serial/rs485.yaml#
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unevaluatedProperties: 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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serial@2c {
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compatible = "maxim,max3107";
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reg = <0x2c>;
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clocks = <&xtal4m>;
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clock-names = "xtal";
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interrupt-parent = <&gpio3>;
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interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
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gpio-controller;
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#gpio-cells = <2>;
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};
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};
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