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SubjectRe: [PATCH v2 1/3] dt-bindings: ASoC: Add TDA7802 amplifier
On Tue, Jul 30, 2019 at 01:09:35PM +0100, Thomas Preston wrote:
> Signed-off-by: Thomas Preston <thomas.preston@codethink.co.uk>
> Cc: Patrick Glaser <pglaser@tesla.com>
> Cc: Rob Duncan <rduncan@tesla.com>
> Cc: Nate Case <ncase@tesla.com>
> ---
> .../devicetree/bindings/sound/tda7802.txt | 26 +++++++++++++++++++
> 1 file changed, 26 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/sound/tda7802.txt
>
> diff --git a/Documentation/devicetree/bindings/sound/tda7802.txt b/Documentation/devicetree/bindings/sound/tda7802.txt
> new file mode 100644
> index 000000000000..f80aaf4f1ba0
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/tda7802.txt
> @@ -0,0 +1,26 @@
> +ST TDA7802 audio processor
> +
> +This device supports I2C only.
> +
> +Required properties:
> +
> +- compatible : "st,tda7802"
> +- reg : the I2C address of the device
> +- enable-supply : a regulator spec for the PLLen pin
> +
> +Optional properties:
> +
> +- st,gain-ch13 : gain for channels 1 and 3 (range: 1-4)
> +- st,gain-ch24 : gain for channels 2 and 3 (range: 1-4)

I wouldn't have expected the gains to be available as a device
tree setting.

> +- st,diagnostic-mode-ch13 : diagnotic mode for channels 1 and 3
> + values: "Speaker" (default), "Booster"
> +- st,diagnostic-mode-ch24 : diagnotic mode for channels 2 and 4
> + values: "Speaker" (default), "Booster"
> +
> +Example:
> +
> +amp: tda7802@6c {
> + compatible = "st,tda7802";
> + reg = <0x6c>;
> + enable-supply = <&amp_enable_reg>;
> +};
> --
> 2.21.0
>

Thanks,
Charles

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