Commit 3b9164c0 authored by Anson Huang's avatar Anson Huang Committed by Philipp Zabel
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dt-bindings: reset: Convert i.MX7 reset to json-schema



Convert the i.MX7 reset binding to DT schema format using json-schema.

Signed-off-by: default avatarAnson Huang <Anson.Huang@nxp.com>
Reviewed-by: default avatarDong Aisheng <aisheng.dong@nxp.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarPhilipp Zabel <p.zabel@pengutronix.de>
parent 20c1b699
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Freescale i.MX7 System Reset Controller
======================================

Please also refer to reset.txt in this directory for common reset
controller binding usage.

Required properties:
- compatible:
	- For i.MX7 SoCs should be "fsl,imx7d-src", "syscon"
	- For i.MX8MQ SoCs should be "fsl,imx8mq-src", "syscon"
	- For i.MX8MM SoCs should be "fsl,imx8mm-src", "fsl,imx8mq-src", "syscon"
	- For i.MX8MN SoCs should be "fsl,imx8mn-src", "fsl,imx8mq-src", "syscon"
	- For i.MX8MP SoCs should be "fsl,imx8mp-src", "syscon"
- reg: should be register base and length as documented in the
  datasheet
- interrupts: Should contain SRC interrupt
- #reset-cells: 1, see below

example:

src: reset-controller@30390000 {
     compatible = "fsl,imx7d-src", "syscon";
     reg = <0x30390000 0x2000>;
     interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
     #reset-cells = <1>;
};


Specifying reset lines connected to IP modules
==============================================

The system reset controller can be used to reset various set of
peripherals. Device nodes that need access to reset lines should
specify them as a reset phandle in their corresponding node as
specified in reset.txt.

Example:

	pcie: pcie@33800000 {

		...

		resets = <&src IMX7_RESET_PCIEPHY>,
			 <&src IMX7_RESET_PCIE_CTRL_APPS_EN>;
		reset-names = "pciephy", "apps";

		...
        };


For list of all valid reset indices see
<dt-bindings/reset/imx7-reset.h> for i.MX7,
<dt-bindings/reset/imx8mq-reset.h> for i.MX8MQ and
<dt-bindings/reset/imx8mq-reset.h> for i.MX8MM and
<dt-bindings/reset/imx8mq-reset.h> for i.MX8MN and
<dt-bindings/reset/imx8mp-reset.h> for i.MX8MP
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/reset/fsl,imx7-src.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Freescale i.MX7 System Reset Controller

maintainers:
  - Andrey Smirnov <andrew.smirnov@gmail.com>

description: |
  The system reset controller can be used to reset various set of
  peripherals. Device nodes that need access to reset lines should
  specify them as a reset phandle in their corresponding node as
  specified in reset.txt.

  For list of all valid reset indices see
    <dt-bindings/reset/imx7-reset.h> for i.MX7,
    <dt-bindings/reset/imx8mq-reset.h> for i.MX8MQ, i.MX8MM and i.MX8MN,
    <dt-bindings/reset/imx8mp-reset.h> for i.MX8MP.

properties:
  compatible:
    items:
      - enum:
        - fsl,imx7d-src
        - fsl,imx8mq-src
        - fsl,imx8mp-src
      - const: syscon

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  '#reset-cells':
    const: 1

required:
  - compatible
  - reg
  - interrupts
  - '#reset-cells'

additionalProperties: false

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

    reset-controller@30390000 {
        compatible = "fsl,imx7d-src", "syscon";
        reg = <0x30390000 0x2000>;
        interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
        #reset-cells = <1>;
    };