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dt-bindings: rtc: Add Amlogic A4 and A5 RTC
Add documentation describing the Amlogic A4(A113L2) and A5(A113X2) RTC.
Signed-off-by: Yiting Deng <yiting.deng@amlogic.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
Link: https://lore.kernel.org/r/20241112-rtc-v6-1-a71b60d2f354@amlogic.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
authored by
Yiting Deng
and committed by
Alexandre Belloni
ce57cf73
82ee16cf
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Documentation/devicetree/bindings/rtc/amlogic,a4-rtc.yaml
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Documentation/devicetree/bindings/rtc/amlogic,a4-rtc.yaml
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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# Copyright (C) 2024 Amlogic, Inc. All rights reserved
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/rtc/amlogic,a4-rtc.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Amlogic A4 and A5 RTC
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maintainers:
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- Yiting Deng <yiting.deng@amlogic.com>
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- Xianwei Zhao <xianwei.zhao@amlogic.com>
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allOf:
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- $ref: rtc.yaml#
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properties:
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compatible:
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enum:
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- amlogic,a4-rtc
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- amlogic,a5-rtc
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reg:
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maxItems: 1
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clocks:
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items:
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- description: RTC clock source, available 24M or 32K crystal
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oscillator source. when using 24M, need to divide 24M into 32K.
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- description: RTC module accesses the clock of the apb bus.
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clock-names:
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items:
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- const: osc
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- const: sys
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interrupts:
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maxItems: 1
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required:
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- compatible
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- reg
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- clocks
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- clock-names
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- interrupts
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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apb {
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#address-cells = <2>;
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#size-cells = <2>;
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rtc@8e600 {
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compatible = "amlogic,a4-rtc";
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reg = <0x0 0x8e600 0x0 0x38>;
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clocks = <&xtal_32k>, <&clkc_periphs 1>;
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clock-names = "osc", "sys";
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interrupts = <GIC_SPI 131 IRQ_TYPE_EDGE_RISING>;
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};
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};