[PATCH v2 1/3] mips: dts: ralink: mt7621: associate uart1_pins with serial0

[AngeloGioacchino Del Regno]

Il 07/03/24 20:04, Justin Swartz ha scritto:
> Add missing pinctrl-name and pinctrl-0 properties to declare
> that the uart1_pins group is associated with serial0.
> 
> Signed-off-by: Justin Swartz <justin.swartz at risingedge.co.za>
> ---
>   arch/mips/boot/dts/ralink/mt7621.dtsi | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/arch/mips/boot/dts/ralink/mt7621.dtsi b/arch/mips/boot/dts/ralink/mt7621.dtsi
> index 35a10258f..dca415fdd 100644
> --- a/arch/mips/boot/dts/ralink/mt7621.dtsi
> +++ b/arch/mips/boot/dts/ralink/mt7621.dtsi
> @@ -123,6 +123,9 @@ serial0: serial at c00 {
>   			reg-shift = <2>;
>   			reg-io-width = <4>;
>   			no-loopback-test;
> +
> +			pinctrl-names = "default";
> +			pinctrl-0 = <&uart1_pins>;
>   		};
>   
>   		spi0: spi at b00 {

The pins are muxed and can be either UART, or some other function that
is supported by the mux: this means that the pinctrl-xxx properties shall
*not* go into the SoC dtsi file, but in board dts files instead.

Said differently: the usage of the UART pins is board-specific, not SoC-wide.

Regards,
Angelo