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dt-bindings: sound: qcom,sm8250: allow TDM slot properties

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Allow standard dai-tdm-slot-* properties in the CPU and codec child
nodes of a DAI link.

The QCOM machine driver parses these child nodes to configure TDM slots
on the active CPU and codec DAIs.  The properties are already defined by
the common tdm-slot binding, but qcom,sm8250.yaml currently rejects them
because the CPU and codec child nodes set additionalProperties: false.

Permit dai-tdm-slot-num, dai-tdm-slot-width and dai-tdm-slot-[rt]x-mask
there so boards using TDM backends can describe the slot layout without
schema warnings.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Prasad Kumpatla <prasad.kumpatla@oss.qualcomm.com>
Link: https://patch.msgid.link/20260804070307.117119-6-prasad.kumpatla@oss.qualcomm.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Prasad Kumpatla 2026-08-04 12:33:05 +05:30 committed by Mark Brown
parent d6a4a2e190
commit 269b23d513
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1 changed files with 26 additions and 0 deletions
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26
Documentation/devicetree/bindings/sound/qcom,sm8250.yaml
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@ -95,6 +95,19 @@ patternProperties:
sound-dai:
maxItems: 1
dai-tdm-slot-num:
$ref: /schemas/types.yaml#/definitions/uint32
description: Number of slots in use
dai-tdm-slot-width:
$ref: /schemas/types.yaml#/definitions/uint32
description: Width, in bits, of each slot
patternProperties:
'^dai-tdm-slot-[rt]x-mask$':
$ref: /schemas/types.yaml#/definitions/uint32-array
description: Slot mask for active TDM slots
platform:
description: Holds subnode which indicates platform dai.
type: object
@ -114,6 +127,19 @@ patternProperties:
minItems: 1
maxItems: 8
dai-tdm-slot-num:
$ref: /schemas/types.yaml#/definitions/uint32
description: Number of slots in use
dai-tdm-slot-width:
$ref: /schemas/types.yaml#/definitions/uint32
description: Width, in bits, of each slot
patternProperties:
'^dai-tdm-slot-[rt]x-mask$':
$ref: /schemas/types.yaml#/definitions/uint32-array
description: Slot mask for active TDM slots
required:
- link-name
- cpu