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2960bc9cce
Userspace can pass a mode with an unspecified vsync/hsync polarity setting. All encoders in the Intel driver take this to mean a negative polarity setting. The HW readout/state checker code on the other hand needs these flags to be explicitly set, otherwise the state checker will WARN about the mismatch. Get rid of the WARN by making the polarity setting explicit in the adjusted mode flags based on the requested mode flags. This will keep the existing behavior otherwise. Note that we could guess from the other timing parameters whether the user wanted a VESA or other standard mode and set the polarity accordingly. This is what the NV driver does (drivers/gpu/drm/nouveau/dispnv04/crtc.c), but I think that's not very exact and would change the existing behavior of the Intel driver. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=65442 Signed-off-by: Imre Deak <imre.deak@intel.com> Tested-by: cancan,feng <cancan.feng@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> |
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