linux/Documentation/devicetree/bindings/sound/nvidia,tegra210-dmic.yaml
Rob Herring 5be478f9c2 dt-bindings: Another round of adding missing 'additionalProperties'
Another round of wack-a-mole. The json-schema default is additional
unknown properties are allowed, but for DT all properties should be
defined.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Baolin Wang <baolin.wang7@gmail.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-By: Vinod Koul <vkoul@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # for iio
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Mark Brown <broonie@kernel.org>
Reviewd-by: Corey Minyard <cminyard@mvista.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Sebastian Reichel <sre@kernel.org>
Link: https://lore.kernel.org/r/20201002234143.3570746-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2020-10-06 10:55:25 -05:00

85 lines
2.0 KiB
YAML

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/nvidia,tegra210-dmic.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Tegra210 DMIC Controller Device Tree Bindings
description: |
The Digital MIC (DMIC) Controller is used to interface with Pulse
Density Modulation (PDM) input devices. It converts PDM signals to
Pulse Coded Modulation (PCM) signals. DMIC can be viewed as a PDM
receiver.
maintainers:
- Jon Hunter <jonathanh@nvidia.com>
- Sameer Pujar <spujar@nvidia.com>
properties:
$nodename:
pattern: "^dmic@[0-9a-f]*$"
compatible:
oneOf:
- const: nvidia,tegra210-dmic
- items:
- enum:
- nvidia,tegra194-dmic
- nvidia,tegra186-dmic
- const: nvidia,tegra210-dmic
reg:
maxItems: 1
clocks:
maxItems: 1
clock-names:
const: dmic
assigned-clocks:
maxItems: 1
assigned-clock-parents:
maxItems: 1
assigned-clock-rates:
maxItems: 1
sound-name-prefix:
pattern: "^DMIC[1-9]$"
$ref: /schemas/types.yaml#/definitions/string
description:
used as prefix for sink/source names of the component. Must be a
unique string among multiple instances of the same component.
The name can be "DMIC1" or "DMIC2" ... "DMICx", where x depends
on the maximum available instances on a Tegra SoC.
required:
- compatible
- reg
- clocks
- clock-names
- assigned-clocks
- assigned-clock-parents
additionalProperties: false
examples:
- |
#include<dt-bindings/clock/tegra210-car.h>
dmic@702d4000 {
compatible = "nvidia,tegra210-dmic";
reg = <0x702d4000 0x100>;
clocks = <&tegra_car TEGRA210_CLK_DMIC1>;
clock-names = "dmic";
assigned-clocks = <&tegra_car TEGRA210_CLK_DMIC1>;
assigned-clock-parents = <&tegra_car TEGRA210_CLK_PLL_A_OUT0>;
assigned-clock-rates = <3072000>;
sound-name-prefix = "DMIC1";
};
...