[Bug 98141] [SKL] Can not choose correct refresh rate when using docking station

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98141

--- Comment #7 from Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com> ---
As Ville pointed out, the TU size is definitely incorrect here.

Not just that, there is simply not enough bandwidth for that mode with the
config that is being setup.

The stream bandwidth for 4k @60Hz, 24 bpp is 1599.75 MBps whereas with just 2
lanes and link clock at 540MHz, we can support only 1080 MBps. This
configuration should have been rejected.

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