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From: "Enrico Weigelt, metux IT consult" <lkml@metux.net>
To: Ed Wildgoose <lists@wildgooses.com>, linux-kernel@vger.kernel.org
Cc: fe@dev.tdt.de, "Enrico Weigelt,
	metux IT consult" <info@metux.net>,
	Darren Hart <dvhart@infradead.org>,
	Andy Shevchenko <andy@infradead.org>,
	platform-driver-x86@vger.kernel.org
Subject: Re: [PATCH 1/2] x86: Remove led/gpio setup from pcengines platform driver
Date: Mon, 12 Oct 2020 21:31:52 +0200	[thread overview]
Message-ID: <5f0efbd5-31ef-bf22-0f72-01db4118f144@metux.net> (raw)
In-Reply-To: <20200921215919.3072-1-lists@wildgooses.com>

On 21.09.20 23:59, Ed Wildgoose wrote:
> The pcengines bios/firmware includes ACPI tables (since 4.10.0.1) which
> will cause the kernel to automatically create led + gpio_key devices for
> the platform. This means that the platform setup now creates duplicates
> of all these led/key devices.

Absolutely not. This breaks a high number of machines in the field,
where FW upgrade is not an option.

> Anyone with a much older bios can use the 'leds-apu' driver to get the
> same set of led devices as created by the kernel with a modern bios.

No, this ancient and obsolete driver does not support more recent boards
and lacks lots of other important functionality, eg. keys, where
userland relies on. Never break userland.

--mtx

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Enrico Weigelt, metux IT consult
Free software and Linux embedded engineering
info@metux.net -- +49-151-27565287

      parent reply	other threads:[~2020-10-12 19:32 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-21 21:59 [PATCH 1/2] x86: Remove led/gpio setup from pcengines platform driver Ed Wildgoose
2020-09-21 21:59 ` [PATCH 2/2] x86: Support APU5 in PCEngines " Ed Wildgoose
2020-09-21 22:17 ` [PATCH 1/2] x86: Remove led/gpio setup from pcengines " Ed W
2020-10-12 19:39   ` Enrico Weigelt, metux IT consult
2020-10-13  8:48     ` Hans de Goede
2020-10-13 21:46       ` Ed W
2020-10-19 14:28         ` Enrico Weigelt, metux IT consult
2020-10-13 21:40     ` Ed W
2020-10-14  8:41       ` Hans de Goede
2020-10-14 11:21         ` Ed W
2020-10-14 11:29           ` Hans de Goede
2020-10-21 21:54             ` Ed W
2020-10-22 11:48               ` Enrico Weigelt, metux IT consult
2020-10-22 15:10                 ` Ed W
2020-10-22 19:30                   ` Enrico Weigelt, metux IT consult
2020-10-19 15:44         ` Enrico Weigelt, metux IT consult
2020-10-19 18:37           ` Hans de Goede
2020-10-21 12:18             ` Enrico Weigelt, metux IT consult
2020-10-21 21:41             ` [PATCH 1/2] x86: Conditional init of pcengines leds/keys gpios Ed Wildgoose
2020-10-21 21:41               ` [PATCH 2/2] x86: Support APU5 & APU6 in PCEngines platform driver Ed Wildgoose
2020-10-22  0:53               ` [PATCH 1/2] x86: Conditional init of pcengines leds/keys gpios kernel test robot
2020-10-22  9:22               ` Enrico Weigelt, metux IT consult
2020-10-22  9:38                 ` Ed W
2020-10-22 13:20                   ` Enrico Weigelt, metux IT consult
2020-10-22 12:23               ` kernel test robot
2020-10-22 12:23               ` [RFC PATCH] x86: cmp_version() can be static kernel test robot
2020-10-19 16:33       ` [PATCH 1/2] x86: Remove led/gpio setup from pcengines platform driver Enrico Weigelt, metux IT consult
2020-10-12 19:31 ` Enrico Weigelt, metux IT consult [this message]

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