[PATCH v4 7/7] arm64: dts: amlogic: gx: add AUDIN node

[Jerome Brunet]

On Thu 01 Oct 2026 at 18:06, Valerio Setti <vsetti at baylibre.com> wrote:

> AUDIN provides audio input support to Amlogic GXBB/GXL SoCs.
>
> What's missing after this to get capture support working is to connect a
> capture capable codec to the SoC. For example to test these changes an
> NXP SGTL5000 chip has been connected to an OdroidC2 (GXBB) board using a
> custom hat board.
>
> The following additions/overlay are required on top of
> 'amlogic/meson-gxbb-odroidc2.dts' to make that hat board to work:
>
>     &sound {
>             audio-routing = "AUDIN I2S Formatter", "AIU I2S Encoder Capture";
>
>             dai-link-1 {
>                     codec-1 {
>                             sound-dai = <&sgtl5000>;
>                     };
>             };
>
>             dai-link-3 {
>                     sound-dai = <&audin 0>;
>             };
>     };
>
>     &audin {
>             status = "okay";
>     };
>
> Then, from userspace:
>
>     $ amixer sset 'AUDIN FIFO0 SRC SEL' 'I2S'
>     $ arecord -l  # find the "FIFO Capture" device
>     $ arecord -D hw:0,<N> -f S16_LE -r 48000 -c 2 /tmp/in.wav
>
> Signed-off-by: Valerio Setti <vsetti at baylibre.com>

Reviewed-by: Jerome Brunet <jbrunet at baylibre.com>