linux-kernel - Re: [PATCH 0/3] add dt configuration for dp83867 led modes

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Date:   Thu, 1 Dec 2022 10:26:09 -0800
From:   Tim Harvey <tharvey@...eworks.com>
To:     Ansuel Smith <ansuelsmth@...il.com>
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        devicetree@...r.kernel.org, netdev@...r.kernel.org,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Andrew Lunn <andrew@...n.ch>
Subject: Re: [PATCH 0/3] add dt configuration for dp83867 led modes

On Sun, Nov 20, 2022 at 3:35 PM Andrew Lunn <andrew@...n.ch> wrote:
>
> On Fri, Nov 18, 2022 at 11:57:00AM -0800, Tim Harvey wrote:
> > On Fri, Nov 18, 2022 at 5:11 AM Andrew Lunn <andrew@...n.ch> wrote:
> > >
> > > > Andrew,
> > > >
> > > > I completely agree with you but I haven't seen how that can be done
> > > > yet. What support exists for a PHY driver to expose their LED
> > > > configuration to be used that way? Can you point me to an example?
> > >
> > > Nobody has actually worked on this long enough to get code merged. e.g.
> > > https://lore.kernel.org/netdev/20201004095852.GB1104@bug/T/
> > > https://lists.archive.carbon60.com/linux/kernel/3396223
> > >
> > > This is probably the last attempt, which was not too far away from getting merged:
> > > https://patches.linaro.org/project/linux-leds/cover/20220503151633.18760-1-ansuelsmth@gmail.com/
> > >
> > > I seem to NACK a patch like yours every couple of months. If all that
> > > wasted time was actually spent on a common framework, this would of
> > > been solved years ago.
> > >
> > > How important is it to you to control these LEDs? Enough to finish
> > > this code and get it merged?
> > >
> >
> > Andrew,
> >
> > Thanks for the links - the most recent attempt does look promising.
> > For whatever reason I don't have that series in my mail history so
> > it's not clear how I can respond to it.
>
> apt-get install b4
>
> > Ansuel, are you planning on posting a v7 of 'Adds support for PHY LEDs
> > with offload triggers' [1]?
> >
> > I'm not all that familiar with netdev led triggers. Is there a way to
> > configure the default offload blink mode via dt with your series? I
> > didn't quite follow how the offload function/blink-mode gets set.
>
> The idea is that the PHY LEDs are just LEDs in the Linux LED
> framework. So read Documentation/devicetree/bindings/leds/common.yaml.
> The PHY should make use of these standard DT properties, including
> linux,default-trigger.
>
>         Andrew

Ansuel,

Are you planning on posting a v7 of 'Adds support for PHY LEDs with
offload triggers' [1]?

Best Regards,

Tim
[1] https://patches.linaro.org/project/linux-leds/list/?series=174704