Chromebook touchpads & touchscreen

[Scot Doyle]

On Tue, 6 Jan 2015, Scot Doyle wrote:

> On Tue, 6 Jan 2015, Chris J Arges wrote:
> > 
> > On 01/05/2015 01:15 PM, Scot Doyle wrote:
> > > Would it be possible to have the mainline patches enabling four Chromebook 
> > > touchpads and one touchscreen added to 3.16? The last four depend on the 
> > > first and they apply to drivers/platform/chrome/chromeos_laptop.c
> > > 
> > > da3b0ab75aadab63d1ffd5563100c9386e444dad  Acer C720
> > > 5ea9567f6126846f5dcfa8515d7ef2c238133c0d  HP Chromebook 14
> > > 0e1e5e590a457063c94d55c219b349bcf0d1f93a  Dell Chromebook 11
> > > 963cb6fa0f5f115986e970b9d97440e4906524fa  Toshiba CB35
> > > b90b3c4ae06af135e279c9a5aa1c640d22787fc4  Acer C720P
> > > 
> > 
> > Scot,
> > Yes this can be added to a stable release since it falls under hardware
> > enablement. It would be very helpful for you to open a bug and follow
> > our Stable Release Update procedure to make this easier to track:
> > https://wiki.ubuntu.com/KernelTeam/KernelUpdates
> > 
> > Once the bug is filed, please either send a new email or reply to this
> > one with that and the SRU justification.
> > 
> > Off the top of my head, are there any DTS files that need to be patched,
> > or any other support needed? In addition do you have a method of
> > verifying these particular patches once they are applied?
> > 
> > Thanks,
> > --chris j arges
> 
> Chris, thanks for the guidance.
> 
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1408105
> 
> The only other possible change would be ensuring CONFIG_CHROMEOS_LAPTOP=m. 
> Yes, I could test by recompiling the kernel. Which tree and branch?
> 
> -------
> SRU Justification:
> Impact: The Haswell-based Chromebooks have touchpads and a touchscreen 
> unsupported in the 3.16 kernels
> Fix: Upstream in 3.17
> Testcase: I've tested fixes by compiling and using upstream 3.17+
> 

I'd like these patches to flow downstream to Debian and derivatives 
(through the 3.16.y-ckt extended stable tree?). Am I following the correct 
procedure?