[Bug 90075] [BYT LPSS backlight] Acer Aspire Switch 10 backlight control

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90075

darlor at seznam.cz changed:

           What    |Removed                     |Added
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                 CC|                            |darlor at seznam.cz

--- Comment #3 from darlor at seznam.cz ---
Created attachment 122344
  --> https://bugs.freedesktop.org/attachment.cgi?id=122344&action=edit
vanilla kernel 4.5.0 with 3 lpss/pwm patches from Shobhit Kumar

Hello, another Linux user of Acer Switch 10 here. I was hoping that creator of
this bug will add needed info, but nothing happened for long time.

So I applied those patches:
https://patchwork.freedesktop.org/patch/70286/
https://patchwork.freedesktop.org/patch/70287/
https://patchwork.freedesktop.org/patch/70288/
I hope that those are patches that Jani Nikula was asking for. 

Dmesg from pure vanilla kernel is already attached. If there is anything else I
can do to make backlight work, Iam available for testing/more info providing.

cat dmesg_4.5_vanilla.txt | grep -i backlight
[    3.838230] [drm:pwm_setup_backlight [i915]] *ERROR* Failed to own the pwm
chip
cat dmesg_4.5_vanilla+lpss.txt | grep -i backlight
[    3.831272] [drm:pwm_setup_backlight [i915]] *ERROR* Failed to own the pwm
chip: pwm_lpss

Thank you for your work

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