linux/Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml
Rob Herring 6fdc6e23a7 dt-bindings: Add missing 'unevaluatedProperties'
This doesn't yet do anything in the tools, but make it explicit so we can
check either 'unevaluatedProperties' or 'additionalProperties' is present
in schemas.

'unevaluatedProperties' is appropriate when including another schema (via
'$ref') and all possible properties and/or child nodes are not
explicitly listed in the schema with the '$ref'.

This is in preparation to add a meta-schema to check for missing
'unevaluatedProperties' or 'additionalProperties'. This has been a
constant source of review issues.

Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Wolfram Sang <wsa@kernel.org>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-By: Vinod Koul <vkoul@kernel.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20201005183830.486085-2-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2020-10-07 11:26:41 -05:00

100 lines
2.0 KiB
YAML

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
# Copyright 2019 BayLibre, SAS
%YAML 1.2
---
$id: "http://devicetree.org/schemas/spi/amlogic,meson-gx-spicc.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Amlogic Meson SPI Communication Controller
maintainers:
- Neil Armstrong <narmstrong@baylibre.com>
allOf:
- $ref: "spi-controller.yaml#"
description: |
The Meson SPICC is a generic SPI controller for general purpose Full-Duplex
communications with dedicated 16 words RX/TX PIO FIFOs.
properties:
compatible:
enum:
- amlogic,meson-gx-spicc # SPICC controller on Amlogic GX and compatible SoCs
- amlogic,meson-axg-spicc # SPICC controller on Amlogic AXG and compatible SoCs
- amlogic,meson-g12a-spicc # SPICC controller on Amlogic G12A and compatible SoCs
interrupts:
maxItems: 1
reg:
maxItems: 1
resets:
maxItems: 1
clocks:
minItems: 1
maxItems: 2
items:
- description: controller register bus clock
- description: baud rate generator and delay control clock
clock-names:
minItems: 1
maxItems: 2
if:
properties:
compatible:
contains:
enum:
- amlogic,meson-g12a-spicc
then:
properties:
clocks:
minItems: 2
clock-names:
items:
- const: core
- const: pclk
else:
properties:
clocks:
maxItems: 1
clock-names:
items:
- const: core
required:
- compatible
- reg
- interrupts
- clocks
- clock-names
unevaluatedProperties: false
examples:
- |
spi@c1108d80 {
compatible = "amlogic,meson-gx-spicc";
reg = <0xc1108d80 0x80>;
interrupts = <112>;
clocks = <&clk81>;
clock-names = "core";
#address-cells = <1>;
#size-cells = <0>;
ethernet-switch@0 {
compatible = "micrel,ks8995m";
spi-max-frequency = <1000000>;
reg = <0>;
};
};