[Bug 81202] [BSW]CallTrace "WARNING: CPU: 0 PID: 1237 at drivers/gpu/drm/i915/intel_pm.c:5955 check_power_well_state+0x69/0x6f [i915]()" after boot

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=81202

Imre Deak <imre.deak at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO
                 CC|                            |ville.syrjala at linux.intel.c
                   |                            |om

--- Comment #5 from Imre Deak <imre.deak at gmail.com> ---
Could you provide a full dmesg log starting from boot? The attached one is
truncated.

>From what I can see, we try to enable some power well (the log shows at least
TX-C-23) but the HW doesn't actually enable it. So it's either a punit problem,
or that we don't use the proper HW knobs for the failing wells. Ville even had
somewhere a comment that the mapping of TX power wells needs to be clarified
against a HW with a working Punit and/or proper documentation. So I think we
need to wait with a proper fix until we get a working CHV.

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