[PATCH v5 1/7] dt-bindings: connector: Add mikrobus-connector

[Ayush Singh]

>> But here you can have subnodes, no? These could then be just
>> enumerated as usual.
>>
>> &mikrobus_board {
>> 	mikrobus_gpio: gpio {
>> 		gpio-controller;
>> 		#gpio-cells = <1>;
>> 	};
>>
>> 	spi {
>> 		cs-gpios = <&mikrobus_gpio 1>;
>>
>> 		spi at 0 {
>> 			compatible = "mydevice";
>> 			reg = <0>;
>> 		};
>> 	};
>> };
>>

Hi, I am now working on an approach for mikroBUS based on the apprach 
described here: [1]


I am thinking of the gpio-controller approach you seem to have used 
here. So I wanted to inquire if there already exists a gpio-controller 
driver that can create a proxy controller that forwards stuff to the 
underlying actual controller. So something like the following:


&mikrobus_gpio: gpio {

     gpio-controller;

     #gpio-cells = <2>;

     gpios = <&gpio1 0>, <&gpi2 1>;

};


spi {

     cs-gpios = <&mikrobus_gpio 1 GPIO_ACTIVE_HIGH>;

};


There does exist gpio0-virtio, but that seems to be for vm context.


[1]: 
https://lore.kernel.org/linux-arm-kernel/20240702164403.29067-1-afd@ti.com/


Ayush Singh