2019-09-08 12:47:37

by Pavel Machek

[permalink] [raw]
Subject: Status of led-backlight driver

Hi!

I don't see the LED-backlight driver in -next. Could it be pushed? It
is one of last pieces to get working backlight on Motorola Droid 4...

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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2019-09-10 00:20:37

by Jean-Jacques Hiblot

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Subject: Re: Status of led-backlight driver

Hi Daniel,

On 09/09/2019 13:14, Daniel Thompson wrote:
> On Sat, Sep 07, 2019 at 12:07:27PM +0200, Pavel Machek wrote:
>> Hi!
>>
>> I don't see the LED-backlight driver in -next. Could it be pushed? It
>> is one of last pieces to get working backlight on Motorola Droid 4...
> Sorry, I dropped the ball on this and was therefore rather late
> reviewing this patchset.
>
> Assuming I have read the code correctly I think there are some
> problems with the max_brightness handling in the backlight code.

Can you comment this? I'll be happy to fix the problem.

Reading the v4 again, I noticed that that I still had not removed the
brightness scaling. Is that the problem ?

JJ

>
> Daniel.
>
>

2019-09-10 06:58:36

by Daniel Thompson

[permalink] [raw]
Subject: Re: Status of led-backlight driver

On Sat, Sep 07, 2019 at 12:07:27PM +0200, Pavel Machek wrote:
> Hi!
>
> I don't see the LED-backlight driver in -next. Could it be pushed? It
> is one of last pieces to get working backlight on Motorola Droid 4...

Sorry, I dropped the ball on this and was therefore rather late
reviewing this patchset.

Assuming I have read the code correctly I think there are some
problems with the max_brightness handling in the backlight code.


Daniel.


2019-09-10 20:10:34

by Daniel Thompson

[permalink] [raw]
Subject: Re: Status of led-backlight driver

On Mon, Sep 09, 2019 at 01:46:39PM +0200, Jean-Jacques Hiblot wrote:
> Hi Daniel,
>
> On 09/09/2019 13:14, Daniel Thompson wrote:
> > On Sat, Sep 07, 2019 at 12:07:27PM +0200, Pavel Machek wrote:
> > > Hi!
> > >
> > > I don't see the LED-backlight driver in -next. Could it be pushed? It
> > > is one of last pieces to get working backlight on Motorola Droid 4...
> > Sorry, I dropped the ball on this and was therefore rather late
> > reviewing this patchset.
> >
> > Assuming I have read the code correctly I think there are some
> > problems with the max_brightness handling in the backlight code.
>
> Can you comment this? I'll be happy to fix the problem.

I did that before replying to the nudges. See:
https://lore.kernel.org/linux-leds/[email protected]/


> Reading the v4 again, I noticed that that I still had not removed the
> brightness scaling. Is that the problem ?

Yes (plus a couple of nits).


Daniel.