linux-kernel - [PATCH 1/2] ASoC: dt-bindings: nau8821: Add single-ended input feature

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Date:   Wed, 23 Aug 2023 15:12:43 +0800
From:   Seven Lee <wtli@...oton.com>
To:     <broonie@...nel.org>
CC:     <lgirdwood@...il.com>, <alsa-devel@...a-project.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <robh+dt@...nel.org>, <conor+dt@...nel.org>,
        <YHCHuang@...oton.com>, <KCHSU0@...oton.com>, <CTLIN0@...oton.com>,
        <SJLIN0@...oton.com>, <scott6986@...il.com>,
        <supercraig0719@...il.com>, <dardar923@...il.com>,
        Seven Lee <wtli@...oton.com>
Subject: [PATCH 1/2] ASoC: dt-bindings: nau8821: Add single-ended input feature

Add input with single-ended control.

Signed-off-by: Seven Lee <wtli@...oton.com>
---
 .../devicetree/bindings/sound/nuvoton,nau8821.yaml         | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/nuvoton,nau8821.yaml b/Documentation/devicetree/bindings/sound/nuvoton,nau8821.yaml
index fc2f4ce4db88..3e54abd4ca74 100644
--- a/Documentation/devicetree/bindings/sound/nuvoton,nau8821.yaml
+++ b/Documentation/devicetree/bindings/sound/nuvoton,nau8821.yaml
@@ -89,6 +89,12 @@ properties:
     $ref: /schemas/types.yaml#/definitions/uint32
     default: 3072000
 
+  nuvoton,left-input-single-end:
+    description: Enable left input with single-ended settings if set.
+        For the headset mic application, the single-ended control is
+        just limited to the left adc for design demand.
+    type: boolean
+
   '#sound-dai-cells':
     const: 0
 
@@ -114,6 +120,7 @@ examples:
             nuvoton,jkdet-pull-enable;
             nuvoton,jkdet-pull-up;
             nuvoton,key-enable;
+            nuvoton,left-input-single-end;
             nuvoton,jkdet-polarity = <GPIO_ACTIVE_LOW>;
             nuvoton,micbias-voltage = <6>;
             nuvoton,vref-impedance = <2>;
-- 
2.25.1