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|
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/cirrus,cs35l45.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Cirrus Logic CS35L45 Speaker Amplifier
maintainers:
- Ricardo Rivera-Matos <rriveram@opensource.cirrus.com>
- Richard Fitzgerald <rf@opensource.cirrus.com>
description: |
CS35L45 is a Boosted Mono Class D Amplifier with DSP
Speaker Protection and Adaptive Battery Management.
allOf:
- $ref: dai-common.yaml#
properties:
compatible:
enum:
- cirrus,cs35l45
reg:
maxItems: 1
'#sound-dai-cells':
const: 1
reset-gpios:
maxItems: 1
vdd-a-supply:
description: voltage regulator phandle for the VDD_A supply
vdd-batt-supply:
description: voltage regulator phandle for the VDD_BATT supply
spi-max-frequency:
maximum: 5000000
cirrus,asp-sdout-hiz-ctrl:
description:
Audio serial port SDOUT Hi-Z control. Sets the Hi-Z
configuration for SDOUT pin of amplifier. Logical OR of
CS35L45_ASP_TX_HIZ_xxx values.
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 3
default: 2
patternProperties:
"^cirrus,gpio-ctrl[1-3]$":
description:
GPIO pins configuration.
type: object
additionalProperties: false
properties:
gpio-dir:
description:
GPIO pin direction. Valid only when 'gpio-ctrl' is 1
0 = Output
1 = Input
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 1
default: 1
gpio-lvl:
description:
GPIO level. Valid only when 'gpio-ctrl' is 1 and 'gpio-dir' is 0
0 = Low
1 = High
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 1
default: 0
gpio-op-cfg:
description:
GPIO level. Valid only when 'gpio-ctrl' is 1 and 'gpio-dir' is 0
0 = CMOS
1 = Open Drain
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 1
default: 0
gpio-pol:
description:
GPIO output polarity select. Valid only when 'gpio-ctrl' is 1
and 'gpio-dir' is 0
0 = Non-inverted, Active High
1 = Inverted, Active Low
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 1
default: 0
gpio-ctrl:
description:
Defines the function of the GPIO pin.
GPIO1
0 = High impedance input
1 = Pin acts as a GPIO, direction controlled by 'gpio-dir'
2 = Pin acts as MDSYNC, direction controlled by MDSYNC
3-7 = Reserved
GPIO2
0 = High impedance input
1 = Pin acts as a GPIO, direction controlled by 'gpio-dir'
2 = Pin acts as open drain INT
3 = Reserved
4 = Pin acts as push-pull output INT. Active low.
5 = Pin acts as push-pull output INT. Active high.
6,7 = Reserved
GPIO3
0 = High impedance input
1 = Pin acts as a GPIO, direction controlled by 'gpio-dir'
2-7 = Reserved
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 7
default: 0
required:
- compatible
- reg
- "#sound-dai-cells"
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/sound/cs35l45.h>
spi {
#address-cells = <1>;
#size-cells = <0>;
cs35l45: cs35l45@2 {
#sound-dai-cells = <1>;
compatible = "cirrus,cs35l45";
reg = <2>;
spi-max-frequency = <5000000>;
vdd-a-supply = <&dummy_vreg>;
vdd-batt-supply = <&dummy_vreg>;
reset-gpios = <&gpio 110 0>;
cirrus,asp-sdout-hiz-ctrl = <(CS35L45_ASP_TX_HIZ_UNUSED |
CS35L45_ASP_TX_HIZ_DISABLED)>;
cirrus,gpio-ctrl1 {
gpio-ctrl = <0x2>;
};
cirrus,gpio-ctrl2 {
gpio-ctrl = <0x2>;
};
cirrus,gpio-ctrl3 {
gpio-ctrl = <0x1>;
gpio-dir = <0x1>;
};
};
};
|
