Re: [PATCH v2 2/3] arm64: dts: ti: Add support for Variscite VAR-SOM-AM62P

[Krzysztof Kozlowski <krzk@kernel.org>]

On 10/07/2025 00:07, Stefano Radaelli wrote:
> +&main_spi0 {
> +	status = "okay";
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_spi0>;
> +	ti,pindir-d0-out-d1-in;
> +
> +	/* Resistive touch controller */

Drop comment, it should be redundant with proper node naming.

> +	ads7846@0 {

Node names should be generic. See also an explanation and list of
examples (not exhaustive) in DT specification:
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation


> +		compatible = "ti,ads7846";
> +		reg = <0>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_restouch>;
> +		interrupt-parent = <&main_gpio0>;
> +		interrupts = <48 IRQ_TYPE_EDGE_FALLING>;
> +		spi-max-frequency = <1500000>;
> +		pendown-gpio = <&main_gpio0 48 GPIO_ACTIVE_LOW>;
> +		ti,x-min = /bits/ 16 <125>;
> +		ti,x-max = /bits/ 16 <4008>;
> +		ti,y-min = /bits/ 16 <282>;
> +		ti,y-max = /bits/ 16 <3864>;
> +		ti,x-plate-ohms = /bits/ 16 <180>;
> +		ti,pressure-max = /bits/ 16 <255>;
> +		ti,debounce-max = /bits/ 16 <10>;
> +		ti,debounce-tol = /bits/ 16 <3>;
> +		ti,debounce-rep = /bits/ 16 <1>;
> +		ti,settle-delay-usec = /bits/ 16 <150>;
> +		ti,keep-vref-on;
> +		wakeup-source;
> +		status = "okay";

Why? Is it disabled anywhere?


Best regards,
Krzysztof