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>
---
 .../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 ede14ca2c07a..b7cae1c65e84 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-gpio: [ti,micbias1-vg]
+  ti,micbias2-gpio: [ti,micbias2-vg]
+
 required:
   - compatible
   - reg

-- 
2.30.2

On Fri, 07 Jun 2024 12:00:45 +0200, Ricard Wanderlof wrote:
> 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>
> ---
>  .../bindings/sound/ti,tlv320adc3xxx.yaml           | 24 ++++++++++++++++++++++
>  1 file changed, 24 insertions(+)
> 

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:
./Documentation/devicetree/bindings/sound/ti,tlv320adc3xxx.yaml:128:25: [warning] too few spaces after comma (commas)
./Documentation/devicetree/bindings/sound/ti,tlv320adc3xxx.yaml:129:25: [warning] too few spaces after comma (commas)

dtschema/dtc warnings/errors:

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20240607-tlv320adc3xxx-micbias-gpo-v2-1-b140a45ffffe@axis.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.