On Thu Jun 27, 2024 at 7:07 PM CEST, Andrew Davis wrote:
+ mikrobus_boards {
+ thermo_click: thermo-click {
+ compatible = "maxim,max31855k", "mikrobus-spi";
I might be missing something, but your solution cannot possibly be
to list every click board that could be connected (all 1500+ of them)
to every mikroBUS connector on every device's DT file..
Each click board should have a single DTSO overlay file to describe the
click board, one per click board total. And then that overlay should
apply cleanly to any device that has a mikroBUS interface.
Which means you have not completely solved the fundamental problem of
abstracting the mikroBUS connector in DT. Each of these click device child
nodes has to be under the parent connector node. Which means a phandle
to the parent node, which is not generically named. For instance
if my board has 2 connectors, I would have mikrobus0 and mikrobus1,
the click board's overlay would look like this:
/dts-v1/;
/plugin/;
&mikrobus0 {
status = "okay";
mikrobus_board {
thermo-click {
compatible = "maxim,max31855k", "mikrobus-spi";
spi-max-frequency = <1000000>;
pinctrl-apply = "spi_default";
};
};
};
If there should only be one DT overlay per click board, how would
you apply that to to different connectors?