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linux-next/Documentation/devicetree/bindings/sound/tas2770.yaml
Rob Herring 0499220d6d dt-bindings: Add missing array size constraints
DT properties which can have multiple entries need to specify what the
entries are and define how many entries there can be. In the case of
only a single entry, just 'maxItems: 1' is sufficient.

Add the missing entry constraints. These were found with a modified
meta-schema. Unfortunately, there are a few cases where the size
constraints are not defined such as common bindings, so the meta-schema
can't be part of the normal checks.

Cc: Jens Axboe <axboe@kernel.dk>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
Cc: Chanwoo Choi <cw00.choi@samsung.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Ohad Ben-Cohen <ohad@wizery.com>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Sebastian Reichel <sre@kernel.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> #for-iio
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Suman Anna <s-anna@ti.com>
Acked-by: Paul Cercueil <paul@crapouillou.net>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210104230253.2805217-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2021-01-11 17:42:25 -06:00

84 lines
1.9 KiB
YAML

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
# Copyright (C) 2019-20 Texas Instruments Incorporated
%YAML 1.2
---
$id: "http://devicetree.org/schemas/sound/tas2770.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Texas Instruments TAS2770 Smart PA
maintainers:
- Shi Fu <shifu0704@thundersoft.com>
description: |
The TAS2770 is a mono, digital input Class-D audio amplifier optimized for
efficiently driving high peak power into small loudspeakers.
Integrated speaker voltage and current sense provides for
real time monitoring of loudspeaker behavior.
properties:
compatible:
enum:
- ti,tas2770
reg:
maxItems: 1
description: |
I2C address of the device can be between 0x41 to 0x48.
reset-gpio:
maxItems: 1
description: GPIO used to reset the device.
shutdown-gpios:
maxItems: 1
description: GPIO used to control the state of the device.
interrupts:
maxItems: 1
ti,imon-slot-no:
$ref: /schemas/types.yaml#/definitions/uint32
description: TDM TX current sense time slot.
ti,vmon-slot-no:
$ref: /schemas/types.yaml#/definitions/uint32
description: TDM TX voltage sense time slot.
ti,asi-format:
deprecated: true
$ref: /schemas/types.yaml#/definitions/uint32
description: Sets TDM RX capture edge.
enum:
- 0 # Rising edge
- 1 # Falling edge
'#sound-dai-cells':
const: 1
required:
- compatible
- reg
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
i2c0 {
#address-cells = <1>;
#size-cells = <0>;
codec: codec@41 {
compatible = "ti,tas2770";
reg = <0x41>;
#sound-dai-cells = <1>;
interrupt-parent = <&gpio1>;
interrupts = <14>;
reset-gpio = <&gpio1 15 0>;
shutdown-gpios = <&gpio1 14 0>;
ti,imon-slot-no = <0>;
ti,vmon-slot-no = <2>;
};
};