Re: [PATCH 0/2] net: phy: dp83867: Configure LED modes via device tree

[Andrew Lunn <andrew@lunn.ch>]

On Fri, Mar 19, 2021 at 04:57:08PM +0100, Michael Tretter wrote:
> Hello,
> 
> The dp83867 has 4 LED pins, which can be multiplexed with different functions
> of the phy.
> 
> This series adds a device tree binding to describe the multiplexing of the
> functions to the LEDs and implements the binding for the dp83867 phy.
> 
> I found existing bindings for configuring the LED modes for other phys:
> 
> In Documentation/devicetree/bindings/net/micrel.txt, the binding is not
> flexible enough for the use case in the dp83867, because there is a value for
> each LED configuration, which would be a lot of values for the dp83867.
> 
> In Documentation/devicetree/bindings/net/mscc-phy-vsc8532.txt, there is a
> separate property for each LED, which would work, but I found rather
> unintuitive compared to how clock bindings etc. work.
> 
> The new binding defines two properties: one for the led names and another
> property for the modes of the LEDs with defined values in the same order.
> Currently, the binding is specific to the dp83867, but I guess that the
> binding could be made more generic and used for other phys, too.

There is some work going on to manage PHY LEDs just like other LEDs in
Linux, using /sys/class/leds.

Please try to help out with that work, rather than adding yet another
DT binding.

   Andrew