From 4e617f0cb2dd9675a3b2707c10d89f0f5303ad1e Mon Sep 17 00:00:00 2001 From: Ricard Wanderlof Date: Fri, 7 Jun 2024 17:22:04 +0200 Subject: [PATCH] ASoC: dt-bindings: tlv320adc3xxx: Add MICBIAS-as-GPO properties 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 Reviewed-by: Krzysztof Kozlowski Link: https://msgid.link/r/20240607-tlv320adc3xxx-micbias-gpo-v3-1-59dbec8b98f4@axis.com Signed-off-by: Mark Brown --- .../bindings/sound/ti,tlv320adc3xxx.yaml | 24 +++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/ti,tlv320adc3xxx.yaml b/Documentation/devicetree/bindings/sound/ti,tlv320adc3xxx.yaml index 8ac741f4cd56a..66b76656229fc 100644 --- a/Documentation/devicetree/bindings/sound/ti,tlv320adc3xxx.yaml +++ b/Documentation/devicetree/bindings/sound/ti,tlv320adc3xxx.yaml @@ -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 -- 2.39.5