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# SPDX-License-Identifier: GPL-2.0-only
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/cirrus,cs35l36.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Cirrus Logic CS35L36 Speaker Amplifier
maintainers:
- David Rhodes <drhodes@opensource.cirrus.com>
- patches@opensource.cirrus.com
description:
CS35L36 is a boosted mono Class D amplifier
allOf:
- $ref: dai-common.yaml#
properties:
compatible:
enum:
- cirrus,cs35l36
reg:
maxItems: 1
interrupts:
maxItems: 1
VA-supply:
description: Voltage regulator of analog internal section
VP-supply:
description: Voltage regulator of boost converter
reset-gpios:
maxItems: 1
cirrus,boost-ctl-millivolt:
description: Boost converter output voltage (step 50)
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 2550
maximum: 12000
cirrus,boost-peak-milliamp:
description: Boost-converter peak current limit (step 50)
$ref: /schemas/types.yaml#/definitions/uint32
default: 4500
minimum: 1600
maximum: 4500
cirrus,boost-ind-nanohenry:
description: Initial inductor estimation reference value (1000=1μH, 1200=1.2μH)
$ref: /schemas/types.yaml#/definitions/uint32
default: 1000
cirrus,multi-amp-mode:
description: Hi-Z ASP port when more than one amplifier in system
type: boolean
cirrus,boost-ctl-select:
description: Boost converter control source selection
$ref: /schemas/types.yaml#/definitions/uint32
default: 1
enum:
- 0 # Control Port
- 1 # Class
- 2 # Sync
cirrus,amp-pcm-inv:
description: Invert incoming PCM data when true
type: boolean
cirrus,imon-pol-inv:
description: Invert polarity of outbound IMON feedback when true
type: boolean
cirrus,vmon-pol-inv:
description: Invert polarity of outbound VMON feedback when true
type: boolean
cirrus,dcm-mode-enable:
description: Enable boost converter automatic Discontinuous Conduction Mode
type: boolean
cirrus,weak-fet-disable:
description: Reduce output driver strength in Weak-FET Drive Mode when true
type: boolean
cirrus,classh-wk-fet-delay-ms:
description: Weak-FET entry delay
default: 100
enum: [0, 5, 10, 50, 100, 200, 500, 1000]
cirrus,classh-weak-fet-thld-millivolt:
description: Weak-FET drive threshold
$ref: /schemas/types.yaml#/definitions/uint32
enum: [50, 100, 150, 200, 250, 300, 350, 400, 450, 500, 550, 600, 650, 700]
cirrus,temp-warn-threshold:
description: Overtemperature warning threshold
$ref: /schemas/types.yaml#/definitions/uint32
default: 2
enum:
- 0 # 105°C
- 1 # 115°C
- 2 # 125°C
- 3 # 135°C
cirrus,irq-drive-select:
description: Interrupt output driver type
$ref: /schemas/types.yaml#/definitions/uint32
default: 1
enum:
- 0 # open-drain
- 1 # push-pull
cirrus,irq-gpio-select:
description: Programmable IRQ pin selection
$ref: /schemas/types.yaml#/definitions/uint32
enum:
- 0 # PDM_DATA/SWIRE_SD/INT
- 1 # GPIO
cirrus,vpbr-config:
$ref: "#/$defs/vpbr-config"
$defs:
vpbr-config:
description: Brownout prevention configuration sub-node
type: object
additionalProperties: false
properties:
cirrus,vpbr-en:
description: VBST brownout prevention enable
$ref: /schemas/types.yaml#/definitions/uint32
default: 0
enum:
- 0 # disabled
- 1 # enabled
cirrus,vpbr-thld:
description: Initial VPBR threshold voltage
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 2
maximum: 31
cirrus,vpbr-atk-rate:
description: Attenuation attack step rate
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 7
cirrus,vpbr-atk-vol:
description: VP brownout prevention step size
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 7
cirrus,vpbr-max-attn:
description: Maximum attenuation during VP brownout prevention (dB)
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 15
cirrus,vpbr-wait:
description: Delay between brownout clearance and attenuation release (ms)
$ref: /schemas/types.yaml#/definitions/uint32
default: 1
enum:
- 0 # 10
- 1 # 100
- 2 # 250
- 3 # 500
cirrus,vpbr-rel-rate:
description: Attenuation release step rate
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 7
cirrus,vpbr-mute-en:
description: Mute audio if maximum attenuation reached
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 1
required:
- compatible
- reg
- interrupts
- VA-supply
- cirrus,boost-ctl-millivolt
- cirrus,boost-peak-milliamp
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
codec@40 {
compatible = "cirrus,cs35l36";
reg = <0x40>;
VA-supply = <&dummy_vreg>;
VP-supply = <&dummy_vreg>;
reset-gpios = <&gpio0 54 GPIO_ACTIVE_HIGH>;
interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
cirrus,boost-ind-nanohenry = <1000>;
cirrus,boost-ctl-millivolt = <10000>;
cirrus,boost-peak-milliamp = <4500>;
cirrus,boost-ctl-select = <0>;
cirrus,classh-wk-fet-delay-ms = <100>;
cirrus,classh-weak-fet-thld-millivolt = <100>;
cirrus,temp-warn-threshold = <1>;
cirrus,multi-amp-mode;
cirrus,irq-drive-select = <1>;
cirrus,irq-gpio-select = <1>;
cirrus,vpbr-config {
cirrus,vpbr-en = <0>;
cirrus,vpbr-thld = <5>;
cirrus,vpbr-atk-rate = <2>;
cirrus,vpbr-atk-vol = <1>;
cirrus,vpbr-max-attn = <9>;
cirrus,vpbr-wait = <1>;
cirrus,vpbr-rel-rate = <5>;
cirrus,vpbr-mute-en = <0>;
};
};
};
...
|
