[Bug 97929] [BAT][SKL] igt/kms_*: [drm:skl_set_cdclk] *ERROR* failed to inform PCU about cdclk change

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97929

--- Comment #3 from Jari Tahvanainen <jari.tahvanainen at intel.com> ---
Propability of this failure on fi-skl-6770hq is less than 10% (based on last
100 igt -t basic runs for CI_DRM:
CI_DRM_1646/fi-skl-6770hq/html/fi-skl-6770hq at CI_DRM_1646/igt at kms_pipe_crc_basic@read-crc-pipe-c
[  588.952203] [drm:skl_set_cdclk] *ERROR* failed to inform PCU about cdclk
change
CI_DRM_1654/fi-skl-6770hq/html/fi-skl-6770hq at CI_DRM_1654/igt at kms_pipe_crc_basic@nonblocking-crc-pipe-a
[  519.129401] [drm:skl_set_cdclk] *ERROR* failed to inform PCU about cdclk
change
CI_DRM_1655/fi-skl-6770hq/html/fi-skl-6770hq at CI_DRM_1655/igt at kms_pipe_crc_basic@read-crc-pipe-b
[  540.991991] [drm:skl_set_cdclk] *ERROR* failed to inform PCU about cdclk
change
CI_DRM_1666/fi-skl-6770hq/html/fi-skl-6770hq at CI_DRM_1666/igt at pm_rpm@basic-pci-d3-state
[  609.849498] [drm:skl_set_cdclk] *ERROR* failed to inform PCU about cdclk
change
CI_DRM_1693/fi-skl-6770hq/dmesg-during-piglit-run-1.log:
[  506.406787] [drm:skl_set_cdclk [i915]] *ERROR* failed to inform PCU about
cdclk change

Note that with this sample every time it is different test case getting dmesg,
and on CI_DRM_1693 none of the igt cases gets the dmesg-fail even though it
does happen.

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