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>
76 lines
1.9 KiB
YAML
76 lines
1.9 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
|
|
# Copyright 2019 BayLibre, SAS
|
|
%YAML 1.2
|
|
---
|
|
$id: "http://devicetree.org/schemas/serial/amlogic,meson-uart.yaml#"
|
|
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
|
|
|
|
title: Amlogic Meson SoC UART Serial Interface
|
|
|
|
maintainers:
|
|
- Neil Armstrong <narmstrong@baylibre.com>
|
|
|
|
description: |
|
|
The Amlogic Meson SoC UART Serial Interface is present on a large range
|
|
of SoCs, and can be present either in the "Always-On" power domain or the
|
|
"Everything-Else" power domain.
|
|
|
|
The particularity of the "Always-On" Serial Interface is that the hardware
|
|
is active since power-on and does not need any clock gating and is usable
|
|
as very early serial console.
|
|
|
|
properties:
|
|
compatible:
|
|
oneOf:
|
|
- description: Always-on power domain UART controller
|
|
items:
|
|
- enum:
|
|
- amlogic,meson6-uart
|
|
- amlogic,meson8-uart
|
|
- amlogic,meson8b-uart
|
|
- amlogic,meson-gx-uart
|
|
- const: amlogic,meson-ao-uart
|
|
- description: Everything-Else power domain UART controller
|
|
enum:
|
|
- amlogic,meson6-uart
|
|
- amlogic,meson8-uart
|
|
- amlogic,meson8b-uart
|
|
- amlogic,meson-gx-uart
|
|
|
|
reg:
|
|
maxItems: 1
|
|
|
|
interrupts:
|
|
maxItems: 1
|
|
|
|
clocks:
|
|
items:
|
|
- description: external xtal clock identifier
|
|
- description: the bus core clock, either the clk81 clock or the gate clock
|
|
- description: the source of the baudrate generator, can be either the xtal or the pclk
|
|
|
|
clock-names:
|
|
items:
|
|
- const: xtal
|
|
- const: pclk
|
|
- const: baud
|
|
|
|
required:
|
|
- compatible
|
|
- reg
|
|
- interrupts
|
|
- clocks
|
|
- clock-names
|
|
|
|
additionalProperties: false
|
|
|
|
examples:
|
|
- |
|
|
serial@84c0 {
|
|
compatible = "amlogic,meson-gx-uart";
|
|
reg = <0x84c0 0x14>;
|
|
interrupts = <26>;
|
|
clocks = <&xtal>, <&pclk>, <&xtal>;
|
|
clock-names = "xtal", "pclk", "baud";
|
|
};
|