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- To: Herve Codina <herve.codina@xxxxxxxxxxx>, Lee Jones <lee@xxxxxxxxxx>, Rob Herring <robh+dt@xxxxxxxxxx>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@xxxxxxxxxx>, Liam Girdwood <lgirdwood@xxxxxxxxx>, Mark Brown <broonie@xxxxxxxxxx>, Jaroslav Kysela <perex@xxxxxxxx>, Takashi Iwai <tiwai@xxxxxxxx>
- Subject: [PATCH v3 4/6] dt-bindings: sound: Add support for the Lantiq PEF2256 codec
- From: Herve Codina <herve.codina@xxxxxxxxxxx>
- Date: Wed, 22 Mar 2023 14:46:52 +0100
- Cc: linux-kernel@xxxxxxxxxxxxxxx, devicetree@xxxxxxxxxxxxxxx, alsa-devel@xxxxxxxxxxxxxxxx, Christophe Leroy <christophe.leroy@xxxxxxxxxx>, Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxx>
- In-reply-to: <20230322134654.219957-1-herve.codina@bootlin.com>
- References: <20230322134654.219957-1-herve.codina@bootlin.com>
The Lantiq PEF2256 is a framer and line interface component designed to fulfill all required interfacing between an analog E1/T1/J1 line and the digital PCM system highway/H.100 bus. The codec support allows to use some of the PCM system highway time-slots as audio channels to transport audio data over the E1/T1/J1 lines. Signed-off-by: Herve Codina <herve.codina@xxxxxxxxxxx> --- .../bindings/sound/lantiq,pef2256-codec.yaml | 54 +++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/lantiq,pef2256-codec.yaml diff --git a/Documentation/devicetree/bindings/sound/lantiq,pef2256-codec.yaml b/Documentation/devicetree/bindings/sound/lantiq,pef2256-codec.yaml new file mode 100644 index 000000000000..da35b70cda99 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/lantiq,pef2256-codec.yaml @@ -0,0 +1,54 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/lantiq,pef2256-codec.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Lantiq PEF2256 codec + +maintainers: + - Herve Codina <herve.codina@xxxxxxxxxxx> + +description: | + Codec support for PEF2256. + + The Lantiq PEF2256, also known as Infineon PEF2256 or FALC56, is a framer and + line interface component designed to fulfill all required interfacing between + an analog E1/T1/J1 line and the digital PCM system highway/H.100 bus. + + The codec support allows to use some of the PCM system highway time-slots as + audio channels to transport audio data over the E1/T1/J1 lines. + + The time-slots used by the codec must be set and so, the properties + 'dai-tdm-slot-num', 'dai-tdm-slot-width', 'dai-tdm-slot-tx-mask' and + 'dai-tdm-slot-rx-mask' must be present in the ALSA sound card node for + sub-nodes that involve the codec. The codec uses 8bit time-slots. + 'dai-tdm-tdm-slot-with' must be set to 8. + The tx and rx masks define the PEF2256 time-slots assigned to the codec. + + The PEF2256 codec node should be a child of a PEF2256 node. + Refer to the bindings described in + Documentation/devicetree/bindings/mfd/lantiq,pef2256.yaml + +allOf: + - $ref: dai-common.yaml# + +properties: + compatible: + const: lantiq,pef2256-codec + + '#sound-dai-cells': + const: 0 + +required: + - compatible + - '#sound-dai-cells' + +unevaluatedProperties: false + +examples: + - | + codec { + compatible = "lantiq,pef2256-codec"; + #sound-dai-cells = <0>; + }; -- 2.39.2
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