[PATCH 1/3] arm64: dts: amlogic: t7: Add uart_c pinctrl pins group

[Xianwei Zhao]

On 2026/4/15 19:16, Ronald Claveau wrote:
> Add the pin multiplexing configuration for UART C (TX, RX, CTS, RTS)
> in the T7 SoC pinctrl node, required to route the UART C signals
> through the correct pads before enabling the controller.
> 
> Signed-off-by: Ronald Claveau<linux-kernel-dev at aliel.fr>
> ---
>   arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi | 12 ++++++++++++
>   1 file changed, 12 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi b/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi
> index 7fe72c94ed623..531931cc1437c 100644
> --- a/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi
> @@ -553,6 +553,18 @@ mux {
>                                                  bias-pull-up;
>                                          };
>                                  };
> +
> +                               uart_c_pins: uart_c {
node name  uart-c
> +                                       mux {
> +                                               groups = "uart_c_tx",
> +                                                        "uart_c_rx",
> +                                                        "uart_c_cts",
> +                                                        "uart_c_rts";
> +                                               bias-pull-up;
> +                                               output-high;
> +                                               function = "uart_c";
> +                                       };
> +                               };
>                          };
> 
>                          gpio_intc: interrupt-controller at 4080 {