From: Pavel Machek <pavel@ucw.cz>
To: Sven Schuchmann <schuchmann@schleissheimer.de>
Cc: Dan Murphy <dmurphy@ti.com>, Rob Herring <robh+dt@kernel.org>,
"linux-leds@vger.kernel.org" <linux-leds@vger.kernel.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v1] leds: lp50xx: add setting of default intensity from DT
Date: Wed, 3 Feb 2021 18:25:08 +0100 [thread overview]
Message-ID: <20210203172508.GC23019@duo.ucw.cz> (raw)
In-Reply-To: <DB8P190MB0634880713B530F51F95CEE0D9B49@DB8P190MB0634.EURP190.PROD.OUTLOOK.COM>
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Hi!
> > Yes, sounds reasonable. Could we get default intensity of 100% on all
> > channels if nothing else is specified?
> >
> > Or maybe simply "if intensity is not specified, start with 100%, and
> > use explicit =0 if other color is expected".
> >
> Mh, if someone is already using the led driver and updates to a newer kernel
> we would then turn on all leds per default to the maximum intensity during boot
> until they are set the way they should be from userspace. I don't know if this
> is what we want? If yes, sure, we could set them to maximum per
> default.
Not really. If they don't have trigger configured, nothing will happen.
> Also if we want to use Percentage Values (%) for setting the intensity
> I think this should also be done for the userspace interfaces and
> not only from DT.
We don't want to use percentages in the API (but let me still use
percentages in discussion).
Best regards,
Pavel
--
http://www.livejournal.com/~pavelmachek
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next prev parent reply other threads:[~2021-02-03 17:27 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-19 10:53 [PATCH v1] leds: lp50xx: add setting of default intensity from DT Sven Schuchmann
2021-02-02 10:48 ` AW: " Sven Schuchmann
2021-02-02 18:24 ` Jacek Anaszewski
2021-02-03 14:29 ` Pavel Machek
2021-02-03 15:39 ` AW: " Sven Schuchmann
2021-02-03 16:35 ` Pavel Machek
2021-02-03 17:10 ` AW: " Sven Schuchmann
2021-02-03 17:25 ` Pavel Machek [this message]
2021-02-04 7:32 ` Sven Schuchmann
2021-02-03 17:21 ` Marek Behun
2021-02-03 17:23 ` Pavel Machek
2021-02-04 7:31 ` AW: " Sven Schuchmann
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