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dt-bindings: rtc: convert rtc-meson.txt to dt-schema

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Convert the Amlogic Meson6 RTC bindings to dt-schema.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20221117-b4-amlogic-bindings-convert-v1-6-3f025599b968@linaro.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit is contained in:
Neil Armstrong 2022-11-18 15:33:32 +01:00 committed by Alexandre Belloni
parent 90cd5c8883
commit 800b55b4dc
2 changed files with 62 additions and 35 deletions
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62
Documentation/devicetree/bindings/rtc/amlogic,meson6-rtc.yaml Normal file
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/rtc/amlogic,meson6-rtc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Amlogic Meson6, Meson8, Meson8b and Meson8m2 RTC
maintainers:
- Neil Armstrong <neil.armstrong@linaro.org>
- Martin Blumenstingl <martin.blumenstingl@googlemail.com>
allOf:
- $ref: rtc.yaml#
- $ref: /schemas/nvmem/nvmem.yaml#
properties:
compatible:
enum:
- amlogic,meson6-rtc
- amlogic,meson8-rtc
- amlogic,meson8b-rtc
- amlogic,meson8m2-rtc
reg:
maxItems: 1
clocks:
maxItems: 1
interrupts:
maxItems: 1
resets:
maxItems: 1
vdd-supply: true
required:
- compatible
- reg
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
rtc: rtc@740 {
compatible = "amlogic,meson6-rtc";
reg = <0x740 0x14>;
interrupts = <GIC_SPI 72 IRQ_TYPE_EDGE_RISING>;
clocks = <&rtc32k_xtal>;
vdd-supply = <&rtc_vdd>;
resets = <&reset_rtc>;
#address-cells = <1>;
#size-cells = <1>;
mac@0 {
reg = <0 6>;
};
};

35
Documentation/devicetree/bindings/rtc/rtc-meson.txt
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* Amlogic Meson6, Meson8, Meson8b and Meson8m2 RTC
Required properties:
- compatible: should be one of the following describing the hardware:
* "amlogic,meson6-rtc"
* "amlogic,meson8-rtc"
* "amlogic,meson8b-rtc"
* "amlogic,meson8m2-rtc"
- reg: physical register space for the controller's memory mapped registers.
- interrupts: the interrupt line of the RTC block.
- clocks: reference to the external 32.768kHz crystal oscillator.
- vdd-supply: reference to the power supply of the RTC block.
- resets: reset controller reference to allow reset of the controller
Optional properties for the battery-backed non-volatile memory:
- #address-cells: should be 1 to address the battery-backed non-volatile memory
- #size-cells: should be 1 to reference the battery-backed non-volatile memory
Optional child nodes:
- see ../nvmem/nvmem.txt
Example:
rtc: rtc@740 {
compatible = "amlogic,meson6-rtc";
reg = <0x740 0x14>;
interrupts = <GIC_SPI 72 IRQ_TYPE_EDGE_RISING>;
clocks = <&rtc32k_xtal>;
vdd-supply = <&rtc_vdd>;
resets = <&reset RESET_RTC>;
#address-cells = <1>;
#size-cells = <1>;
};