From: Stefan Binding <sbinding@opensource.cirrus.com>
To: Mark Brown <broonie@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>
Cc: linux-sound@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, patches@opensource.cirrus.com,
Stefan Binding <sbinding@opensource.cirrus.com>
Subject: [PATCH v2 1/2] ASoC: dt-bindings: cirrus,cs35l41: Document the cirrus,subsystem-id property
Date: Fri, 12 Sep 2025 16:47:44 +0100 [thread overview]
Message-ID: <20250912154759.279661-2-sbinding@opensource.cirrus.com> (raw)
In-Reply-To: <20250912154759.279661-1-sbinding@opensource.cirrus.com>
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@opensource.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..e6cf2ebcd777 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:
+ $ref: /schemas/types.yaml#/definitions/string
+ description:
+ Subsystem ID. If this property is present, it sets the system name,
+ used to identify the firmware and tuning to load.
+
required:
- compatible
- reg
--
2.43.0
next prev parent reply other threads:[~2025-09-12 15:48 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-12 15:47 [PATCH v2 0/2] Support reading Subsystem ID from Device Tree Stefan Binding
2025-09-12 15:47 ` Stefan Binding [this message]
2025-09-13 13:48 ` [PATCH v2 1/2] ASoC: dt-bindings: cirrus,cs35l41: Document the cirrus,subsystem-id property Krzysztof Kozlowski
2025-09-12 15:47 ` [PATCH v2 2/2] ASoC: cs35l41: Fallback to reading Subsystem ID property if not ACPI Stefan Binding
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