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From: Pavel Machek <pavel@ucw.cz>
To: "Guido Günther" <agx@sigxcpu.org>
Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com>,
	Dan Murphy <dmurphy@ti.com>, Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	linux-leds@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 0/9] leds: lm3692x: Allow to set ovp and brigthness mode
Date: Tue, 25 Feb 2020 11:19:35 +0100	[thread overview]
Message-ID: <20200225101935.GA16252@amd> (raw)
In-Reply-To: <20200106094443.GB13043@bogon.m.sigxcpu.org>

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Hi!

> > > Patches are against next-20191220.
> > 
> > I applied everything but the "exponential" changes and the last
> > one. I'll apply the last one if I get version that applies on top of
> > leds tree.
> 
> Thanks! Can I do anything to get the exponential part in? Is it because
> you want the exponential mode to move to the backlight binding?

You'd have to do some serious convincing, explaining why we absolutely
need the exponential stuff.

Most devices today use linear brightness, and userspace needs to know
the relation, especially for RGB stuff.

You can set bigger max-brightness, and then do in-driver conversion to
use full dynamic brightness range...?

Best regards,

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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      reply	other threads:[~2020-02-25 10:19 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-04 10:54 Guido Günther
2020-01-04 10:54 ` [PATCH v3 1/9] dt: bindings: lm3692x: Add ti,ovp-microvolt property Guido Günther
2020-01-04 21:11   ` Rob Herring
2020-01-04 10:54 ` [PATCH v3 2/9] leds: lm3692x: Allow to configure over voltage protection Guido Günther
2020-01-04 10:54 ` [PATCH v3 3/9] dt: bindings: lm3692x: Add ti,brightness-mapping-exponential property Guido Günther
2020-01-04 21:11   ` Rob Herring
2020-01-04 10:54 ` [PATCH v3 4/9] leds: lm3692x: Allow to configure brigthness mode Guido Günther
2020-01-04 10:54 ` [PATCH v3 5/9] dt: bindings: lm3692x: Add led-max-microamp property Guido Günther
2020-01-04 21:11   ` Rob Herring
2020-01-04 10:54 ` [PATCH v3 6/9] leds: lm3692x: Make sure we don't exceed the maximum led current Guido Günther
2020-01-04 10:54 ` [PATCH v3 7/9] leds: lm3692x: Move lm3692x_init and rename to lm3692x_leds_enable Guido Günther
2020-01-04 10:54 ` [PATCH v3 8/9] leds: lm3692x: Split out lm3692x_leds_disable Guido Günther
2020-01-04 10:54 ` [PATCH v3 9/9] leds: lm3692x: Disable chip on brightness 0 Guido Günther
2020-01-05 23:47 ` [PATCH v3 0/9] leds: lm3692x: Allow to set ovp and brigthness mode Pavel Machek
2020-01-06  9:44   ` Guido Günther
2020-02-25 10:19     ` Pavel Machek [this message]

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