linux-kernel - Re: [PATCH v2 2/4] leds: simatic-ipc-leds: add new driver for Siemens Industial PCs

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Message-ID: <e2c6bec5-1f8e-c69a-9219-5c0a9f63ba56@metux.net>
Date:   Thu, 18 Mar 2021 11:27:51 +0100
From:   "Enrico Weigelt, metux IT consult" <lkml@...ux.net>
To:     Andy Shevchenko <andy.shevchenko@...il.com>,
        Henning Schild <henning.schild@...mens.com>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux LED Subsystem <linux-leds@...r.kernel.org>,
        Platform Driver <platform-driver-x86@...r.kernel.org>,
        linux-watchdog@...r.kernel.org,
        Srikanth Krishnakar <skrishnakar@...il.com>,
        Jan Kiszka <jan.kiszka@...mens.com>,
        Gerd Haeussler <gerd.haeussler.ext@...mens.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Mark Gross <mgross@...ux.intel.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Pavel Machek <pavel@....cz>
Subject: Re: [PATCH v2 2/4] leds: simatic-ipc-leds: add new driver for Siemens
 Industial PCs

On 15.03.21 11:48, Andy Shevchenko wrote:

Hi,

> I have a question, why we can't provide a GPIO driver which is already
> in the kernel and, with use of the patch series I sent, to convert
> this all magic to GPIO LEDs as it's done for all normal cases?

Do we alread have a generic led driver that for cases that just
set/clear bits in some mem/io location ? If not, that would be really
great to have.


--mtx

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