Bluetooth SCO Link are supported by Linux with a matching device tree binding.
Now that we have the DT validation in place, let's convert the device tree bindings for that driver over to a YAML schema.
The value expected for #sound-dai-cells wasn't documented though, and the users were inconsistent. The example didn't list it, and across the 4 users we have in tree: - 1 had a cells value of 1, but using only 0 as argument - 1 had a cells value of 0, - 2 didn't have this property at all, behaving as if it was 0,
It seems like the consensus seems to be that it should be 0, so let's enforce it.
Cc: alsa-devel@alsa-project.org Cc: devicetree@vger.kernel.org Cc: Liam Girdwood lgirdwood@gmail.com Cc: Mark Brown broonie@kernel.org Cc: Samuel Holland samuel@sholland.org Signed-off-by: Maxime Ripard maxime@cerno.tech --- .../devicetree/bindings/sound/bt-sco.txt | 13 ------- .../bindings/sound/linux,bt-sco.yaml | 34 +++++++++++++++++++ 2 files changed, 34 insertions(+), 13 deletions(-) delete mode 100644 Documentation/devicetree/bindings/sound/bt-sco.txt create mode 100644 Documentation/devicetree/bindings/sound/linux,bt-sco.yaml
diff --git a/Documentation/devicetree/bindings/sound/bt-sco.txt b/Documentation/devicetree/bindings/sound/bt-sco.txt deleted file mode 100644 index 641edf75e184..000000000000 --- a/Documentation/devicetree/bindings/sound/bt-sco.txt +++ /dev/null @@ -1,13 +0,0 @@ -Bluetooth-SCO audio CODEC - -This device support generic Bluetooth SCO link. - -Required properties: - - - compatible : "delta,dfbmcs320" or "linux,bt-sco" - -Example: - -codec: bt_sco { - compatible = "delta,dfbmcs320"; -}; diff --git a/Documentation/devicetree/bindings/sound/linux,bt-sco.yaml b/Documentation/devicetree/bindings/sound/linux,bt-sco.yaml new file mode 100644 index 000000000000..334b508205cd --- /dev/null +++ b/Documentation/devicetree/bindings/sound/linux,bt-sco.yaml @@ -0,0 +1,34 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/linux,bt-sco.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Bluetooth SCO Audio Codec Device Tree Bindings + +maintainers: + - Mark Brown broonie@kernel.org + +properties: + '#sound-dai-cells': + const: 0 + + compatible: + enum: + - delta,dfbmcs320 + - linux,bt-sco + +required: + - '#sound-dai-cells' + - compatible + +additionalProperties: false + +examples: + - | + codec { + #sound-dai-cells = <0>; + compatible = "linux,bt-sco"; + }; + +...