Commit 7ae8b2f5 authored by Simon Horman's avatar Simon Horman Committed by Rob Herring
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dt-bindings: rtc: rtc-sh: convert bindings to json-schema



Convert Real Time Clock for Renesas SH and ARM SoCs bindings documentation
to json-schema.  Also name bindings documentation file according to the
compat string being documented.

Also correct syntax error in interrupts field in example.

Signed-off-by: default avatarSimon Horman <horms+renesas@verge.net.au>
Reviewed-by: default avatarUlrich Hecht <uli+renesas@fpond.eu>
Acked-by: default avatarAlexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent 99e0b621
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# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/rtc/renesas,sh-rtc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Real Time Clock for Renesas SH and ARM SoCs

maintainers:
  - Chris Brandt <chris.brandt@renesas.com>
  - Geert Uytterhoeven <geert+renesas@glider.be>

properties:
  compatible:
    items:
      - const: renesas,r7s72100-rtc  # RZ/A1H
      - const: renesas,sh-rtc

  reg:
    maxItems: 1

  interrupts:
    maxItems: 3

  interrupt-names:
    items:
      - const: alarm
      - const: period
      - const: carry

  clocks:
    # The functional clock source for the RTC controller must be listed
    # first (if it exists). Additionally, potential clock counting sources
    # are to be listed.
    minItems: 1
    maxItems: 4

  clock-names:
    # The functional clock must be labeled as "fck". Other clocks
    # may be named in accordance to the SoC hardware manuals.
    minItems: 1
    maxItems: 4
    items:
      enum: [ fck, rtc_x1, rtc_x3, extal ]

required:
  - compatible
  - reg
  - interrupts
  - interrupt-names
  - clocks
  - clock-names

examples:
  - |
    #include <dt-bindings/clock/r7s72100-clock.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/interrupt-controller/irq.h>

    rtc: rtc@fcff1000 {
        compatible = "renesas,r7s72100-rtc", "renesas,sh-rtc";
        reg = <0xfcff1000 0x2e>;
        interrupts = <GIC_SPI 276 IRQ_TYPE_EDGE_RISING>,
                     <GIC_SPI 277 IRQ_TYPE_EDGE_RISING>,
                     <GIC_SPI 278 IRQ_TYPE_EDGE_RISING>;
        interrupt-names = "alarm", "period", "carry";
        clocks = <&mstp6_clks R7S72100_CLK_RTC>, <&rtc_x1_clk>,
                 <&rtc_x3_clk>, <&extal_clk>;
        clock-names = "fck", "rtc_x1", "rtc_x3", "extal";
    };
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* Real Time Clock for Renesas SH and ARM SoCs

Required properties:
- compatible: Should be "renesas,r7s72100-rtc" and "renesas,sh-rtc" as a
  fallback.
- reg: physical base address and length of memory mapped region.
- interrupts: 3 interrupts for alarm, period, and carry.
- interrupt-names: The interrupts should be labeled as "alarm", "period", and
  "carry".
- clocks: The functional clock source for the RTC controller must be listed
  first (if exists). Additionally, potential clock counting sources are to be
  listed.
- clock-names: The functional clock must be labeled as "fck". Other clocks
  may be named in accordance to the SoC hardware manuals.


Example:
rtc: rtc@fcff1000 {
	compatible = "renesas,r7s72100-rtc", "renesas,sh-rtc";
	reg = <0xfcff1000 0x2e>;
	interrupts = <GIC_SPI 276 IRQ_TYPE_EDGE_RISING
		      GIC_SPI 277 IRQ_TYPE_EDGE_RISING
		      GIC_SPI 278 IRQ_TYPE_EDGE_RISING>;
	interrupt-names = "alarm", "period", "carry";
	clocks = <&mstp6_clks R7S72100_CLK_RTC>, <&rtc_x1_clk>,
		 <&rtc_x3_clk>, <&extal_clk>;
	clock-names = "fck", "rtc_x1", "rtc_x3", "extal";
};