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

Ronald Claveau
2026-04-15T13:45:15Z

Hello Xianwei,

On 4/15/26 1:28 PM, Xianwei Zhao wrote:
>
>
> 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@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

I will change this, thank you for reminding me.

>> +                                       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@4080 {

--
Best regards,
Ronald