On Mon, Jan 20, 2025 at 10:02:46AM +0100, Marek Vasut wrote:
> In case a PHY supports only one LED in total, like ADIN1300, and this LED
> is described in DT, it is currently necessary to include unit address in
> the LED node name and the address-cells have to be set to 1:
>
> leds {
> #address-cells = <1>;
> ...
> led@0 {
> reg = <0>;
> ...
> };
> };
>
> For a single LED PHY, this should not be necessary and plain 'led' node
> without unit should be acceptable as well:
>
> leds {
> ...
> led {
> ...
> };
> };
So how do other subsystems handle this? SPI with only a single chip
select line? Standalone LED controllers with a single LED? A PWM with
a single output?
> drivers/net/phy/phy_device.c | 15 +++++++++++++--
What about the device tree binding? Does it already have the reg
property as optional?
Andrew
