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dt-bindings: reset: Convert i.MX7 reset to json-schema

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

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This commit is contained in:
Anson Huang 2020-05-11 19:57:42 +08:00 committed by Philipp Zabel
parent 20c1b69965
commit 3b9164c0f1
2 changed files with 58 additions and 56 deletions
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56
Documentation/devicetree/bindings/reset/fsl,imx7-src.txt
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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

58
Documentation/devicetree/bindings/reset/fsl,imx7-src.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/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>;
};