[Bug 76211] [hsw BISECTED REGRESSION] i915 resume latency 1200ms

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=76211

Jani Nikula <jani.nikula at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO

--- Comment #2 from Jani Nikula <jani.nikula at intel.com> ---
(In reply to Len Brown from comment #0)
> if analyze_suspend.py is invoked with the -f argument, it also
> produces an ftrace that can show exactly where the time goes.
> In the case of 3.15-rc1 on the Dell XPS11:
> 
> intel_edp_panel_on takes > 1000ms
>   wait_panel_power_cycle takes 800ms
>   wait_panel_status takes 200ms

Please share these figures with the regressing commit reverted, with the time
hogs there.

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