Re: [PATCH v4 1/2] arm64: dts: ti: k3-j7200-mcu-wakeup: Switch mcu_syscon to ti,j721e-system-controller

[Andrew Davis]

On 10/9/23 3:24 AM, Vaishnav Achath wrote:
> From: Nishanth Menon <nm@xxxxxx>
>
> Use ti,j721e-system-controller to be explicit about the syscon node we
> are using.
>
> Signed-off-by: Nishanth Menon <nm@xxxxxx>
> Signed-off-by: Vaishnav Achath <vaishnav.a@xxxxxx>
> ---
>
> No changes since V1.
>
>   arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
> index 6ffaf85fa63f..2ee6215e38a6 100644
> --- a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
> @@ -165,7 +165,7 @@
>   	};
>   
>   	mcu_conf: syscon@40f00000 {
> -		compatible = "syscon", "simple-mfd";
> +		compatible = "ti,j721e-system-controller", "syscon", "simple-mfd";

There is already a "ti,j721e-system-controller" in the main domain dtsi. And this
is not one of those. You are hiding a valid DT warning by adding an incorrect
compatible string that just so happens to not throw the warning.

This should be a "simple-bus" node.

Andrew

>   		reg = <0x00 0x40f00000 0x00 0x20000>;
>   		#address-cells = <1>;
>   		#size-cells = <1>;