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dt-bindings: soc: bcm: bcm2835-pm: Convert bindings to DT schema

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This converts the brcm,bcm2835-pm bindings from text to proper schema.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
This commit is contained in:
Nicolas Saenz Julienne 2022-06-25 13:36:09 +02:00 committed by Florian Fainelli
parent 935327a735
commit 520d0abe6a
2 changed files with 77 additions and 46 deletions
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46
Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.txt
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BCM2835 PM (Power domains, watchdog)
The PM block controls power domains and some reset lines, and includes
a watchdog timer. This binding supersedes the brcm,bcm2835-pm-wdt
binding which covered some of PM's register range and functionality.
Required properties:
- compatible: Should be "brcm,bcm2835-pm"
- reg: Specifies base physical address and size of the two
register ranges ("PM" and "ASYNC_BRIDGE" in that
order)
- clocks: a) v3d: The V3D clock from CPRMAN
b) peri_image: The PERI_IMAGE clock from CPRMAN
c) h264: The H264 clock from CPRMAN
d) isp: The ISP clock from CPRMAN
- #reset-cells: Should be 1. This property follows the reset controller
bindings[1].
- #power-domain-cells: Should be 1. This property follows the power domain
bindings[2].
Optional properties:
- timeout-sec: Contains the watchdog timeout in seconds
- system-power-controller: Whether the watchdog is controlling the
system power. This node follows the power controller bindings[3].
[1] Documentation/devicetree/bindings/reset/reset.txt
[2] Documentation/devicetree/bindings/power/power-domain.yaml
[3] Documentation/devicetree/bindings/power/power-controller.txt
Example:
pm {
compatible = "brcm,bcm2835-pm", "brcm,bcm2835-pm-wdt";
#power-domain-cells = <1>;
#reset-cells = <1>;
reg = <0x7e100000 0x114>,
<0x7e00a000 0x24>;
clocks = <&clocks BCM2835_CLOCK_V3D>,
<&clocks BCM2835_CLOCK_PERI_IMAGE>,
<&clocks BCM2835_CLOCK_H264>,
<&clocks BCM2835_CLOCK_ISP>;
clock-names = "v3d", "peri_image", "h264", "isp";
system-power-controller;
};

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Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.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/soc/bcm/brcm,bcm2835-pm.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: BCM2835 PM (Power domains, watchdog)
description: |
The PM block controls power domains and some reset lines, and includes a
watchdog timer.
maintainers:
- Nicolas Saenz Julienne <nsaenz@kernel.org>
allOf:
- $ref: ../../watchdog/watchdog.yaml#
properties:
compatible:
items:
- const: brcm,bcm2835-pm
- const: brcm,bcm2835-pm-wdt
reg:
items:
- description: PM registers
- description: ASB registers
"#power-domain-cells":
const: 1
"#reset-cells":
const: 1
clocks:
minItems: 4
maxItems: 4
clock-names:
items:
- const: v3d
- const: peri_image
- const: h264
- const: isp
system-power-controller:
type: boolean
timeout-sec: true
required:
- compatible
- reg
- "#power-domain-cells"
- "#reset-cells"
- clocks
additionalProperties: false
examples:
- |
#include <dt-bindings/clock/bcm2835.h>
watchdog@7e100000 {
compatible = "brcm,bcm2835-pm", "brcm,bcm2835-pm-wdt";
#power-domain-cells = <1>;
#reset-cells = <1>;
reg = <0x7e100000 0x114>,
<0x7e00a000 0x24>;
clocks = <&clocks BCM2835_CLOCK_V3D>,
<&clocks BCM2835_CLOCK_PERI_IMAGE>,
<&clocks BCM2835_CLOCK_H264>,
<&clocks BCM2835_CLOCK_ISP>;
clock-names = "v3d", "peri_image", "h264", "isp";
system-power-controller;
};