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

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Convert the i.MX 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>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This commit is contained in:
Anson Huang 2020-05-19 11:42:27 +08:00 committed by Philipp Zabel
parent a9701376ed
commit 20c1b69965
2 changed files with 82 additions and 49 deletions
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49
Documentation/devicetree/bindings/reset/fsl,imx-src.txt
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@ -1,49 +0,0 @@
Freescale i.MX System Reset Controller
======================================
Please also refer to reset.txt in this directory for common reset
controller binding usage.
Required properties:
- compatible: Should be "fsl,<chip>-src"
- reg: should be register base and length as documented in the
datasheet
- interrupts: Should contain SRC interrupt and CPU WDOG interrupt,
in this order.
- #reset-cells: 1, see below
example:
src: src@20d8000 {
compatible = "fsl,imx6q-src";
reg = <0x020d8000 0x4000>;
interrupts = <0 91 0x04 0 96 0x04>;
#reset-cells = <1>;
};
Specifying reset lines connected to IP modules
==============================================
The system reset controller can be used to reset the GPU, VPU,
IPU, and OpenVG IP modules on i.MX5 and i.MX6 ICs. Those device
nodes should specify the reset line on the SRC in their resets
property, containing a phandle to the SRC device node and a
RESET_INDEX specifying which module to reset, as described in
reset.txt
example:
ipu1: ipu@2400000 {
resets = <&src 2>;
};
ipu2: ipu@2800000 {
resets = <&src 4>;
};
The following RESET_INDEX values are valid for i.MX5:
GPU_RESET 0
VPU_RESET 1
IPU1_RESET 2
OPEN_VG_RESET 3
The following additional RESET_INDEX value is valid for i.MX6:
IPU2_RESET 4

82
Documentation/devicetree/bindings/reset/fsl,imx-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,imx-src.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Freescale i.MX System Reset Controller
maintainers:
- Philipp Zabel <p.zabel@pengutronix.de>
description: |
The system reset controller can be used to reset the GPU, VPU,
IPU, and OpenVG IP modules on i.MX5 and i.MX6 ICs. Those device
nodes should specify the reset line on the SRC in their resets
property, containing a phandle to the SRC device node and a
RESET_INDEX specifying which module to reset, as described in
reset.txt
The following RESET_INDEX values are valid for i.MX5:
GPU_RESET 0
VPU_RESET 1
IPU1_RESET 2
OPEN_VG_RESET 3
The following additional RESET_INDEX value is valid for i.MX6:
IPU2_RESET 4
properties:
compatible:
oneOf:
- const: "fsl,imx51-src"
- items:
- const: "fsl,imx50-src"
- const: "fsl,imx51-src"
- items:
- const: "fsl,imx53-src"
- const: "fsl,imx51-src"
- items:
- const: "fsl,imx6q-src"
- const: "fsl,imx51-src"
- items:
- const: "fsl,imx6sx-src"
- const: "fsl,imx51-src"
- items:
- const: "fsl,imx6sl-src"
- const: "fsl,imx51-src"
- items:
- const: "fsl,imx6ul-src"
- const: "fsl,imx51-src"
- items:
- const: "fsl,imx6sll-src"
- const: "fsl,imx51-src"
reg:
maxItems: 1
interrupts:
items:
- description: SRC interrupt
- description: CPU WDOG interrupts out of SRC
minItems: 1
maxItems: 2
'#reset-cells':
const: 1
required:
- compatible
- reg
- interrupts
- '#reset-cells'
additionalProperties: false
examples:
- |
reset-controller@73fd0000 {
compatible = "fsl,imx51-src";
reg = <0x73fd0000 0x4000>;
interrupts = <75>;
#reset-cells = <1>;
};