linux-kernel - Re: [PATCH v2] leds: apu: extend support for PC Engines APU1 with newer firmware

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Date:   Tue, 23 Feb 2021 22:13:10 +0100
From:   Zbyněk Kocur <zbynek.kocur@....cvut.cz>
To:     "Enrico Weigelt, metux IT consult" <info@...ux.net>
Cc:     Petr Štetiar <ynezz@...e.cz>,
        Andreas Eberlein <foodeas@...erlein.de>,
        Pavel Machek <pavel@....cz>, linux-leds@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] leds: apu: extend support for PC Engines APU1 with
 newer firmware

Hello,

I checked my stock and I have following models:

- apu2e2
- apu2e4
- apu3d4
- apu4c4

The bios in all models can be upgraded from version 4.0.6 to higher. The latest is 4.13.0.3.

Zbyněk
---
email: zbynek.kocur@....cvut.cz
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Department of Telecommunications Engineering
Faculty of Electrical Engineering

> On 23. 2. 2021, at 21:02, Enrico Weigelt, metux IT consult <info@...ux.net> wrote:
> 
> On 19.02.21 21:51, Zbyněk Kocur wrote:
> 
> Hi Zbyněk,
> 
>> Thanks for adding to the discussion. I tested the proposed modification on APU1 with different versions of bios.
>> The LED subsystem now behaves the same as the APU2 and higher. If it needs more tests on various boards
>>  from PCengines, I'm available.
> 
> Do you also happen to have different apu2/3/4 boards (various hw revs
> and bios versions) for testing ? I've still got some open issues, eg.
> regarding pcie reset lines, etc.
> 
> 
> --mtx
> 
> -- 
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> Enrico Weigelt, metux IT consult
> Free software and Linux embedded engineering
> info@...ux.net -- +49-151-27565287