linux-kernel - [PATCH 1/2] ASoC: dt-bindings: add regulator support to dmic codec

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Message-ID: <20250306171840.593443-2-olivier.moysan@foss.st.com>
Date: Thu, 6 Mar 2025 18:18:39 +0100
From: Olivier Moysan <olivier.moysan@...s.st.com>
To: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
        Rob
 Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor
 Dooley <conor+dt@...nel.org>,
        Arnaud Pouliquen <arnaud.pouliquen@...s.st.com>
CC: Olivier Moysan <olivier.moysan@...s.st.com>, <linux-sound@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/2] ASoC: dt-bindings: add regulator support to dmic codec

Add optional vref-supply property to describe the regulator supplying
the digital microphones.

Signed-off-by: Olivier Moysan <olivier.moysan@...s.st.com>
---
 Documentation/devicetree/bindings/sound/dmic-codec.yaml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/dmic-codec.yaml b/Documentation/devicetree/bindings/sound/dmic-codec.yaml
index 59ef0cf6b6e5..cc3c84dd4c26 100644
--- a/Documentation/devicetree/bindings/sound/dmic-codec.yaml
+++ b/Documentation/devicetree/bindings/sound/dmic-codec.yaml
@@ -19,6 +19,9 @@ properties:
   '#sound-dai-cells':
     const: 0
 
+  vref-supply:
+    description: Phandle to the digital microphone reference supply
+
   dmicen-gpios:
     description: GPIO specifier for DMIC to control start and stop
     maxItems: 1
-- 
2.25.1