On Thu, 14 Oct 2021 12:29:18 +0200 Pavel Machek <pavel@xxxxxx> wrote: > Hi! > > > Some RJ-45 connectors have LEDs wired in the following way: > > > > LED1 > > +--|>|--+ > > | | > > A---+--|<|--+---B > > LED2 > > > > With + on A and - on B, LED1 is ON and LED2 is OFF. Inverting the > > polarity turns LED1 OFF and LED2 ON. > > > > So these LEDs exclude each other. > > > > Add new `excludes` property to the LED binding. The property is a > > phandle-array to all the other LEDs that are excluded by this LED. > > I don't think this belongs to the LED binding. > > This is controller limitation, and the driver handling the controller > needs to know about it... so it does not need to learn that from the > LED binding. It's not necessarily a controller limitation, rather a limitation of the board (or ethernet connector, in the case of LEDs on an ethernet connector). But I guess we could instead document this property in the ethernet PHY controller binding for a given PHY. Marek
