linux-kernel - [PATCH v1 1/2] ASoC: dt-bindings: cirrus,cs35l41: Document the cirrus,subsystem-id property

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Message-ID: <20250912104612.361125-2-sbinding@opensource.cirrus.com>
Date: Fri, 12 Sep 2025 11:45:37 +0100
From: Stefan Binding <sbinding@...nsource.cirrus.com>
To: Mark Brown <broonie@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc: linux-sound@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, patches@...nsource.cirrus.com,
        Stefan Binding <sbinding@...nsource.cirrus.com>
Subject: [PATCH v1 1/2] ASoC: dt-bindings: cirrus,cs35l41: Document the cirrus,subsystem-id property

Add new property: cirrus,subsystem-id
This new property is used to uniquely identify the system if device
tree is used, to allow the driver to select the correct firmware and
tuning for the system.

Signed-off-by: Stefan Binding <sbinding@...nsource.cirrus.com>
---
 Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml b/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml
index 14dea1feefc5..a9eb9bd7ad9c 100644
--- a/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml
+++ b/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml
@@ -151,6 +151,12 @@ properties:
     minimum: 0
     maximum: 5
 
+  cirrus,subsystem-id:
+    description:
+      Subsystem ID. If this property is present, it sets the system name,
+      used to identify the firmware and tuning to load.
+    type: string
+
 required:
   - compatible
   - reg
-- 
2.43.0