drm/i915: export a CPT mode set verification function
At the point where we check, we can't do much about the failure, but it can aid debugging. Note that the auto-train override bit will be reset as part of normal mode setting with this patch if a pipe ever does get stuck, but that's consistent with the workaround for CPT provided by the hardware team. This patch helped catch the fact that the pipe wasn't running in the !composite sync FDI case on my IVB SDV, so has already shown to be useful. Signed-off-by:Jesse Barnes <jbarnes@virtuousgeek.org> Tested-By:
Eugeni Dodonov <eugeni.dodonov@intel.com> Reviewed-By:
Eugeni Dodonov <eugeni.dodonov@intel.com> Signed-off-by:
Keith Packard <keithp@keithp.com>
parent
d64311ab
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