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[1/3] ASoC: dt-bindings: samsung,midas-audio: Add GPIO-based headset jack detection

Message ID 20240503-midas-wm1811-gpio-jack-v1-1-e8cddbd67cbf@gmail.com
State Superseded
Headers show
Series ASoC: samsung: midas-audio: Add GPIO-based headset jack detection | expand

Commit Message

Artur Weber May 3, 2024, 6:55 p.m. UTC
Some Samsung devices that share the midas-audio driver use a GPIO-based
approach to headset jack detection, as opposed to using the built-in
jack detection provided by the wm8994 driver.

Add DT configuration values that allow for describing these setups.

Signed-off-by: Artur Weber <aweber.kernel@gmail.com>
---
 .../bindings/sound/samsung,midas-audio.yaml        | 30 ++++++++++++++++++++++
 1 file changed, 30 insertions(+)

Comments

Krzysztof Kozlowski May 6, 2024, 6:28 a.m. UTC | #1
On 03/05/2024 20:55, Artur Weber wrote:
> Some Samsung devices that share the midas-audio driver use a GPIO-based
> approach to headset jack detection, as opposed to using the built-in
> jack detection provided by the wm8994 driver.
> 
> Add DT configuration values that allow for describing these setups.
> 
> Signed-off-by: Artur Weber <aweber.kernel@gmail.com>
> ---
>  .../bindings/sound/samsung,midas-audio.yaml        | 30 ++++++++++++++++++++++
>  1 file changed, 30 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/sound/samsung,midas-audio.yaml b/Documentation/devicetree/bindings/sound/samsung,midas-audio.yaml
> index 6ec80f529d84..9f521131f2b3 100644
> --- a/Documentation/devicetree/bindings/sound/samsung,midas-audio.yaml
> +++ b/Documentation/devicetree/bindings/sound/samsung,midas-audio.yaml
> @@ -61,6 +61,36 @@ properties:
>      maxItems: 1
>      description: GPIO pin for line out selection
>  
> +  headset-detect-gpios:
> +    maxItems: 1
> +    description: GPIO for detection of headset insertion
> +
> +  headset-key-gpios:
> +    maxItems: 1
> +    description: GPIO for detection of headset key press
> +
> +  io-channels:
> +    maxItems: 1
> +    description: IO channel to read micbias voltage for headset detection
> +
> +  io-channel-names:
> +    const: headset-detect
> +
> +  headset-4pole-threshold-microvolt:

You need vendor prefix for this and next property.

> +    minItems: 2
> +    maxItems: 2
> +    description: |

Do not need '|' unless you need to preserve formatting.



Best regards,
Krzysztof
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/sound/samsung,midas-audio.yaml b/Documentation/devicetree/bindings/sound/samsung,midas-audio.yaml
index 6ec80f529d84..9f521131f2b3 100644
--- a/Documentation/devicetree/bindings/sound/samsung,midas-audio.yaml
+++ b/Documentation/devicetree/bindings/sound/samsung,midas-audio.yaml
@@ -61,6 +61,36 @@  properties:
     maxItems: 1
     description: GPIO pin for line out selection
 
+  headset-detect-gpios:
+    maxItems: 1
+    description: GPIO for detection of headset insertion
+
+  headset-key-gpios:
+    maxItems: 1
+    description: GPIO for detection of headset key press
+
+  io-channels:
+    maxItems: 1
+    description: IO channel to read micbias voltage for headset detection
+
+  io-channel-names:
+    const: headset-detect
+
+  headset-4pole-threshold-microvolt:
+    minItems: 2
+    maxItems: 2
+    description: |
+      Array containing minimum and maximum IO channel value for 4-pole
+      (with microphone/button) headsets. If the IO channel value is
+      outside of this range, a 3-pole headset is assumed.
+
+  headset-button-threshold-microvolt:
+    minItems: 3
+    maxItems: 3
+    description: |
+      Array of minimum (inclusive) IO channel values for headset button
+      detection, in order: "Media", "Volume Up" and "Volume Down".
+
 required:
   - compatible
   - cpu