Rob Herring 7f464532b0 dt-bindings: Add missing 'additionalProperties: false'
Setting 'additionalProperties: false' is frequently omitted, but is
important in order to check that there aren't extra undocumented
properties in a binding.

Ideally, we'd just add this automatically and make this the default, but
there's some cases where it doesn't work. For example, if a common
schema is referenced, then properties in the common schema aren't part
of what's considered for 'additionalProperties'. Also, sometimes there
are bus specific properties such as 'spi-max-frequency' that go into
bus child nodes, but aren't defined in the child node's schema.

So let's stick with the json-schema defined default and add
'additionalProperties: false' where needed. This will be a continual
review comment and game of wack-a-mole.

Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Reviewed-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Acked-by: Stephen Boyd <sboyd@kernel.org> # clock
Acked-by: Lee Jones <lee.jones@linaro.org>
2020-03-31 09:03:17 -06:00

69 lines
1.8 KiB
YAML

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/hwmon/adi,adm1177.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Analog Devices ADM1177 Hot Swap Controller and Digital Power Monitor
maintainers:
- Michael Hennerich <michael.hennerich@analog.com>
- Beniamin Bia <beniamin.bia@analog.com>
description: |
Analog Devices ADM1177 Hot Swap Controller and Digital Power Monitor
https://www.analog.com/media/en/technical-documentation/data-sheets/ADM1177.pdf
properties:
compatible:
enum:
- adi,adm1177
reg:
maxItems: 1
avcc-supply:
description:
Phandle to the Avcc power supply
shunt-resistor-micro-ohms:
description:
The value of curent sense resistor in microohms. If not provided,
the current reading and overcurrent alert is disabled.
adi,shutdown-threshold-microamp:
description:
Specifies the current level at which an over current alert occurs.
If not provided, the overcurrent alert is configured to max ADC range
based on shunt-resistor-micro-ohms.
adi,vrange-high-enable:
description:
Specifies which internal voltage divider to be used. A 1 selects
a 7:2 voltage divider while a 0 selects a 14:1 voltage divider.
type: boolean
required:
- compatible
- reg
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
i2c0 {
#address-cells = <1>;
#size-cells = <0>;
pwmon@5a {
compatible = "adi,adm1177";
reg = <0x5a>;
shunt-resistor-micro-ohms = <50000>; /* 50 mOhm */
adi,shutdown-threshold-microamp = <1059000>; /* 1.059 A */
adi,vrange-high-enable;
};
};
...