linux-kernel - Re: [PATCH] platform: x86: dell-laptop: Add support for keyboard backlight

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Message-ID: <20150226060616.GA7331@fury.dvhart.com>
Date:	Wed, 25 Feb 2015 22:06:16 -0800
From:	Darren Hart <dvhart@...radead.org>
To:	Pali Rohár <pali.rohar@...il.com>
Cc:	Gabriele Mazzotta <gabriele.mzt@...il.com>, mjg59@...f.ucam.org,
	linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org,
	A.Sloman@...bham.ac.uk, computersforpeace@...il.com,
	dan.carpenter@...cle.com
Subject: Re: [PATCH] platform: x86: dell-laptop: Add support for keyboard
 backlight

On Sun, Feb 22, 2015 at 12:04:23PM +0100, Pali Rohár wrote:
> On Thursday 19 February 2015 11:58:29 Gabriele Mazzotta wrote:
> > This patch adds the support for the configuration of the
> > keyboard backlight on supported Dell laptops.
> > 
> > With this patch it is possible to set:
> > * keyboard backlight level
> > * timeout after which the backlight will be automatically
> > turned off * input activity triggers (keyboard, touchpad,
> > mouse) that enable the backlight * ambient light settings
> > 
> > The settings are exposed via
> > /sys/class/leds/dell::kbd_backlight/
> > 
> > The code is based on the newly released documentation by Dell
> > in the libsmbios project.
> > 
> > Signed-off-by: Pali Rohár <pali.rohar@...il.com>
> > Signed-off-by: Gabriele Mazzotta <gabriele.mzt@...il.com>
> > Cc: Dan Carpenter <dan.carpenter@...cle.com>
> > ---
> >  .../ABI/testing/sysfs-platform-dell-laptop         |   69 ++
> >  drivers/platform/x86/dell-laptop.c                 | 1089
> > +++++++++++++++++++- 2 files changed, 1152 insertions(+), 6
> > deletions(-)
> >  create mode 100644
> > Documentation/ABI/testing/sysfs-platform-dell-laptop
> > 
> 
> This patch is same as combination of previous, just contains all 
> changes in single patch file. Difference between v3.19-rc5 and 
> current version is just als code was moved to separate functions 
> and als backlight can be enabled via new sysfs attribute (like in 
> second patch which was sent).
> 
> I tested this patch on top of linus tree (commit 79513d0) and 
> keyboard backlight works fine.
> 
> Darren, what do you think, can be this patch which brings 
> keyboard backlight support finally moved to mainline kernel?

So sorry for the delay folks, bad week :( This landed too late for 3.20... her
durr 4.0, but should make 4.1. Expect to see it in next in the next few days.

-- 
Darren Hart
Intel Open Source Technology Center
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