linux-kernel - Re: [GIT PULL v2] LM3532 backlight support improvements and relocation

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Message-ID: <20190409145649.GE2839@atomide.com>
Date:   Tue, 9 Apr 2019 07:56:49 -0700
From:   Tony Lindgren <tony@...mide.com>
To:     Dan Murphy <dmurphy@...com>
Cc:     Pavel Machek <pavel@....cz>,
        Jacek Anaszewski <jacek.anaszewski@...il.com>, robh@...nel.org,
        lee.jones@...aro.org, linux-leds@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [GIT PULL v2] LM3532 backlight support improvements and
 relocation

* Dan Murphy <dmurphy@...com> [190408 20:04]:
> Tony
> 
> On 4/8/19 2:30 PM, Tony Lindgren wrote:
> > * Dan Murphy <dmurphy@...com> [190408 15:54]:
> > > On 4/7/19 5:17 PM, Pavel Machek wrote:
> > > > Plus, I'd kind of expect ALS enabled/disabled to be runtime controled,
> > > > not from the device tree.
> > > We can always add runtime override control to the driver.
> > Yeah that sounds good to me :) Sounds like this can be done
> > with follow up patches though.
> > 
> > > Just need to see if there is a common interface from input or IIO we can adopt.
> > Hmm can the lm3532 registers actually show the value
> > for the ALS sensors?
> 
> 
> No it can only report the current configured ALS zone not the LUX value.

Sounds like it should be just enable/disable or auto/manual
type toggle then in /sys somewhere for the users.

Not sure if ledtrig-backlight-auto vs ledtrig-backlight would
make sense?

Regards,

Tony