From: Pavel Machek <pavel-+ZI9xUNit7I@public.gmane.org>
To: Dan Murphy <dmurphy-l0cyMroinI0@public.gmane.org>
Cc: robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
mark.rutland-5wv7dgnIgG8@public.gmane.org,
rpurdie-Fm38FmjxZ/leoWH0uzbU5w@public.gmane.org,
jacek.anaszewski-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-leds-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH v4 4/6] dt: bindings: lp8860: Add trigger binding to the lp8860
Date: Fri, 15 Dec 2017 22:00:42 +0100 [thread overview]
Message-ID: <20171215210042.GC19442@amd> (raw)
In-Reply-To: <76329432-f96e-93ab-ed9b-ade22c8735c9-l0cyMroinI0@public.gmane.org>
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On Fri 2017-12-15 11:22:24, Dan Murphy wrote:
> Pavel
>
> On 12/15/2017 03:09 AM, Pavel Machek wrote:
> > Hi!
> >
> >> @@ -35,6 +37,7 @@ led-controller@2d {
> >> led@0 {
> >> reg = <0>;
> >> label = "white:display_cluster";
> >> + linux,default-trigger = "backlight";
> >> };
> >> }
> >
> > What is "display_cluster"? Is it display backlight?
> >
>
> This device can be configured to drive all 4 LED strings in display mode
> so that all 4 strings have the same brightness controlled either through PWM or
> through the brightness register
>
> or
>
> As cluster string where the brightness of individual strings or clustered strings
> can be controlled via independent brightness control registers. I am currently working
> on adding this support to the driver.
Ok; but I guess I'd like to keep this implementation detail away from
kernel, and just expose as display:white:backlight or something like that.
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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next prev parent reply other threads:[~2017-12-15 21:00 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-12 22:01 [PATCH v4 0/6] Updated LP8860 driver series Dan Murphy
2017-12-12 22:01 ` [PATCH v4 1/6] dt: bindings: lp8860: Update bindings for lp8860 Dan Murphy
2017-12-15 22:56 ` Rob Herring
2017-12-15 22:57 ` Rob Herring
2017-12-12 22:01 ` [PATCH v4 2/6] dt: bindings: lp8860: Update DT label binding Dan Murphy
[not found] ` <20171212220143.31210-3-dmurphy-l0cyMroinI0@public.gmane.org>
2017-12-15 22:59 ` Rob Herring
2017-12-18 13:08 ` Dan Murphy
2017-12-12 22:01 ` [PATCH v4 3/6] leds: lp8860: Update the dt parsing for LED labeling Dan Murphy
[not found] ` <20171212220143.31210-1-dmurphy-l0cyMroinI0@public.gmane.org>
2017-12-12 22:01 ` [PATCH v4 4/6] dt: bindings: lp8860: Add trigger binding to the lp8860 Dan Murphy
[not found] ` <20171212220143.31210-5-dmurphy-l0cyMroinI0@public.gmane.org>
2017-12-15 9:09 ` Pavel Machek
2017-12-15 17:22 ` Dan Murphy
[not found] ` <76329432-f96e-93ab-ed9b-ade22c8735c9-l0cyMroinI0@public.gmane.org>
2017-12-15 21:00 ` Pavel Machek [this message]
2017-12-12 22:01 ` [PATCH v4 5/6] leds: lp8860: Add DT parsing to retrieve the trigger node Dan Murphy
2017-12-12 22:01 ` [PATCH v4 6/6] leds: lp8860: Various fixes to align with LED framework Dan Murphy
2017-12-13 19:55 ` [PATCH v4 0/6] Updated LP8860 driver series Jacek Anaszewski
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