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7f464532b0
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>
71 lines
1.7 KiB
YAML
71 lines
1.7 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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# Copyright 2019 Bootlin
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%YAML 1.2
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---
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$id: "http://devicetree.org/schemas/gpio/xylon,logicvc-gpio.yaml#"
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$schema: "http://devicetree.org/meta-schemas/core.yaml#"
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title: Xylon LogiCVC GPIO controller
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maintainers:
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- Paul Kocialkowski <paul.kocialkowski@bootlin.com>
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description: |
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The LogiCVC GPIO describes the GPIO block included in the LogiCVC display
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controller. These are meant to be used for controlling display-related
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signals.
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The controller exposes GPIOs from the display and power control registers,
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which are mapped by the driver as follows:
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- GPIO[4:0] (display control) mapped to index 0-4
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- EN_BLIGHT (power control) mapped to index 5
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- EN_VDD (power control) mapped to index 6
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- EN_VEE (power control) mapped to index 7
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- V_EN (power control) mapped to index 8
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properties:
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$nodename:
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pattern: "^gpio@[0-9a-f]+$"
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compatible:
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enum:
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- xylon,logicvc-3.02.a-gpio
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reg:
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maxItems: 1
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"#gpio-cells":
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const: 2
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gpio-controller: true
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gpio-line-names:
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minItems: 1
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maxItems: 9
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required:
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- compatible
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- reg
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- "#gpio-cells"
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- gpio-controller
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additionalProperties: false
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examples:
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- |
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logicvc: logicvc@43c00000 {
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compatible = "xylon,logicvc-3.02.a", "syscon", "simple-mfd";
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reg = <0x43c00000 0x6000>;
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#address-cells = <1>;
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#size-cells = <1>;
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logicvc_gpio: gpio@40 {
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compatible = "xylon,logicvc-3.02.a-gpio";
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reg = <0x40 0x40>;
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gpio-controller;
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#gpio-cells = <2>;
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gpio-line-names = "GPIO0", "GPIO1", "GPIO2", "GPIO3", "GPIO4",
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"EN_BLIGHT", "EN_VDD", "EN_VEE", "V_EN";
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};
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};
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