Re: [PATCH RESEND 0/5] dt-bindings: support Ethernet devices as LED triggers

From: Ansuel Smith
Date: Thu May 05 2022 - 10:02:48 EST


On Thu, May 05, 2022 at 03:55:07PM +0200, Rafał Miłecki wrote:
> From: Rafał Miłecki <rafal@xxxxxxxxxx>
>
> Some LEDs are designed to represent a state of another device. That may
> be USB port, Ethernet interface, CPU, hard drive and more.
>
> We already have support for LEDs that are designed to indicate USB port
> (e.g. light on when USB device gets connected). There is DT binding for
> that and Linux implementation in USB trigger.
>
> This patchset adds support for describing LEDs that should react to
> Ethernet interface status. That is commonly used in routers. They often
> have LED to display state and activity of selected physical port. It's
> also common to have multiple LEDs, each reacting to a specific link
> speed.
>

I notice this is specific to ethernet speed... I wonder if we should
expand this also to other thing like duplex state or even rx/tx.

> Patch 5/5 is proof of concept and is not meant to be applied yet.
>
> Rafał Miłecki (5):
> dt-bindings: net: add bitfield defines for Ethernet speeds
> dt-bindings: net: allow Ethernet devices as LED triggers
> dt-bindings: leds: add Ethernet triggered LEDs to example
> ARM: dts: BCM5301X: Add triggers for Luxul XWR-1200 network LEDs
> leds: trigger: netdev: support DT "trigger-sources" property
>
> .../devicetree/bindings/leds/common.yaml | 21 +++++++++++++++
> .../bindings/net/ethernet-controller.yaml | 3 +++
> arch/arm/boot/dts/bcm47081-luxul-xwr-1200.dts | 22 +++++++++++----
> drivers/leds/trigger/ledtrig-netdev.c | 26 ++++++++++++++++++
> include/dt-bindings/net/eth.h | 27 +++++++++++++++++++
> 5 files changed, 94 insertions(+), 5 deletions(-)
> create mode 100644 include/dt-bindings/net/eth.h
>
> --
> 2.34.1
>

--
Ansuel