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From: Jani Nikula <jani.nikula@linux.intel.com>
To: "C. B." <cbrookes@gmail.com>, intel-gfx@lists.freedesktop.org
Cc: Shobhit Kumar <shobhit.kumar@intel.com>
Subject: Re: LPSS backlight control (Dell Venue 8 Pro)
Date: Mon, 04 Jan 2016 11:42:35 +0200	[thread overview]
Message-ID: <8760z9adf8.fsf@intel.com> (raw)
In-Reply-To: <CAAzPvNxyE=wkxubPmnzAk0_XxrdOHo5jxLUC=OF4dMxvXW4HiQ@mail.gmail.com>

On Fri, 01 Jan 2016, "C. B." <cbrookes@gmail.com> 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
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
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  reply	other threads:[~2016-01-04  9:43 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-01 16:04 LPSS backlight control (Dell Venue 8 Pro) C. B.
2016-01-04  9:42 ` Jani Nikula [this message]
2016-01-04 11:50   ` Kumar, Shobhit
2016-01-05 21:07     ` C. B.

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