ab527efc2f
17 ms is eerily close to 60 Hz ^-1 Unfortunately this goes back to the original DP enabling for ilk, and unfortunately does not come with a reason for it's existance attached. Some closer inspection of the code and DP specs shows that we set the idle link pattern before we disable the port. And it seems like that the DP spec (or at least our hw) only switch to the idle pattern on the next vblank. Hence a vblank wait at this spot makes _much_ more sense than a really long wait. v2: Rebase fixup. v3: Add comment requested by Paulo Zanoni saying that we don't really know what this wait is for. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> |
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