linux/Documentation/devicetree/bindings/regulator/st,stm32-vrefbuf.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

55 lines
1.1 KiB
YAML

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/regulator/st,stm32-vrefbuf.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: STMicroelectronics STM32 Voltage reference buffer bindings
description: |
Some STM32 devices embed a voltage reference buffer which can be used as
voltage reference for ADCs, DACs and also as voltage reference for external
components through the dedicated VREF+ pin.
maintainers:
- Fabrice Gasnier <fabrice.gasnier@st.com>
allOf:
- $ref: "regulator.yaml#"
properties:
compatible:
const: st,stm32-vrefbuf
reg:
maxItems: 1
clocks:
maxItems: 1
vdda-supply:
description: phandle to the vdda input analog voltage.
required:
- compatible
- reg
- clocks
- vdda-supply
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/clock/stm32mp1-clks.h>
vrefbuf@50025000 {
compatible = "st,stm32-vrefbuf";
reg = <0x50025000 0x8>;
regulator-min-microvolt = <1500000>;
regulator-max-microvolt = <2500000>;
clocks = <&rcc VREF>;
vdda-supply = <&vdda>;
};
...