[PATCH v3 4/4] arm64: dts: allwinner: a523: enable IR on the Avaota A1

[Chen-Yu Tsai]

On Thu, Jul 23, 2026 at 7:36 AM Justin Suess <utilityemal77 at gmail.com> wrote:
>
> From: Andre Przywara <andre.przywara at arm.com>
>
> The Avaota A1 board has an IR receiver chip on the PCB (next to the
> Ethernet jacks), wired to the PI8 pin on the SoC.
>
> Add the pin description to the PIO DT node, and enable the CIR receiver
> in the main power domain.
>
> Tested on the board with evtest and some random TV remote control.
>
> Signed-off-by: Andre Przywara <andre.przywara at arm.com>

You need to add your own Signed-off-by, since you are resending other
people's work.

ChenYu


> ---
>  arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi          | 7 +++++++
>  arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts | 6 ++++++
>  2 files changed, 13 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
> index c2de662140ce..219fd76a4710 100644
> --- a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
> @@ -155,6 +155,13 @@ i2s2_pi_pins: i2s2-pi-pins {
>                                 bias-disable;
>                         };
>
> +                       /omit-if-no-ref/
> +                       ir_rx_pin: ir-rx-pin {
> +                               pins = "PI8";
> +                               allwinner,pinmux = <3>;
> +                               function = "cir_rx";
> +                       };
> +

This hunk should be in the .dtsi patch. And there are two pin mux
possibilities for ir-rx. Please name it accordingly, like "ir-rx-pi-pin".

ChenYu

>                         /omit-if-no-ref/
>                         ledc_ph_pin: ledc-ph-pin {
>                                 pins = "PH19";
> diff --git a/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts b/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts
> index 474354fbfcec..994f1e4f0ce7 100644
> --- a/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts
> +++ b/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts
> @@ -100,6 +100,12 @@ &gpu {
>         status = "okay";
>  };
>
> +&ir {
> +       pinctrl-names = "default";
> +       pinctrl-0 = <&ir_rx_pin>;
> +       status = "okay";
> +};
> +
>  &ledc {
>         pinctrl-names = "default";
>         pinctrl-0 = <&ledc_ph_pin>;
> --
> 2.54.0
>