Re: LPSS backlight control (Dell Venue 8 Pro)

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On Fri, 01 Jan 2016, "C. B." <cbrookes@xxxxxxxxx> wrote:
> Hello All,
>
> Re: http://lists.freedesktop.org/archives/intel-gfx/2015-April/065313.html
>
>>Recently I noticed another device Dell Venue 8 Pro (BYT-CR) which
>>should be using LPSS backlight control. There is already a LPSS PWM
>>chip driver in upstream kernel which should be used in this case. That
>>patch is for another day
>
> I would like to humbly register my interest in seeing this support
> added in. I have a Dell Venue 8 Pro running Linux and I'd like to be
> able to adjust the backlight.

Shobhit, any thoughts or news on LPSS backlight?

> I also noticed vbetool dpms control doesn't work either; not sure
> whether that's related?

It's expected vbetool does not work with i915. vbetool bypasses the
driver to access hardware registers owned by i915. It's also unrelated
to LPSS.

BR,
Jani.


-- 
Jani Nikula, Intel Open Source Technology Center
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