[Bug 85977] [BYT] Backlight support for Dell Venue 8 Pro

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=85977

--- Comment #26 from Kit <nekit1000 at gmail.com> ---
(In reply to Shobhit from comment #23)
> Latest patch sets for trying out. Both panel enable and back-light
> enable/disable is supported. Last patch(9) is more of quick test. Once I fix
> that properly, back-light brightness control should also work - 
> 
> http://lists.freedesktop.org/archives/intel-gfx/2015-March/061908.html

Shobhit, I tried to apply your patch against 4.0 kernel. Unfortunately, I get
[    3.205922] crystal_cove_pwm: probe of crystal_cove_pwm failed with error
-22
on Acer Aspire Switch 10 with Intel Atom (BayTrail CR?) Z3735F. J-M B's hack
never worked for me no matter what kernel version. Is there any debug info I
can provide?

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