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ASoC: dt-bindings: tlv320adc3xxx: Add MICBIAS-as-GPO properties

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Add properties for configuring the MICBIAS pins as general purpose
outputs, with some limitations: The voltage on the pin when activated
may be set using another property to 2.0 V, 2.5 V or AVDD.
When deactivated the pin will float.

Signed-off-by: Ricard Wanderlof <ricard.wanderlof@axis.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://msgid.link/r/20240607-tlv320adc3xxx-micbias-gpo-v3-1-59dbec8b98f4@axis.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Ricard Wanderlof
2024-06-07 17:22:04 +02:00
committed by Mark Brown
parent 195815c275
commit 4e617f0cb2
1 changed files with 24 additions and 0 deletions
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24
Documentation/devicetree/bindings/sound/ti,tlv320adc3xxx.yaml
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@@ -82,6 +82,26 @@ properties:
Note that there is currently no support for reading the GPIO pins as
inputs.
ti,micbias1-gpo:
type: boolean
description: |
When set, the MICBIAS1 pin may be controlled via the GPIO framework,
as pin number 3 on the device.
In this mode, when the pin is activated, it will be set to the voltage
specified by the ti,micbias1-vg property. When deactivated, the pin will
float.
ti,micbias2-gpo:
type: boolean
description: |
When set, the MICBIAS2 pin may be controlled via the GPIO framework,
as pin number 4 on the device.
In this mode, when the pin is activated, it will be set to the voltage
specified by the ti,micbias2-vg property. When deactivated, the pin will
float.
ti,micbias1-vg:
$ref: /schemas/types.yaml#/definitions/uint32
enum:
@@ -104,6 +124,10 @@ properties:
description: |
Mic bias voltage output on MICBIAS2 pin
dependencies:
ti,micbias1-gpo: ['ti,micbias1-vg']
ti,micbias2-gpo: ['ti,micbias2-vg']
required:
- compatible
- reg