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94352cf9a5
Passing in the old fb, having overwritten the current fb, leads to some neatly convoluted code. It's much simpler if we defer the crtc->fb update to the place that updates the hw, in pipe_set_base. This way we also don't need to restore anything in case something fails - we only update crtc->fb once things have succeeded. The real reason for this change is that now we keep the old fb assigned to crtc->fb, which allows us to finally move the crtc disable case into the common low-level set_mode function in the next patch. Also don't clobber crtc->x and crtc->y, we neatly pass these down the callchain already. Unfortunately we can't do the same with crtc->mode, because that one is being used in the mode_set callbacks. v2: Don't restore the drm_crtc object any more on failed modesets, since we've lose an fb reference otherwise. Also (and this is the reason this has been found), this totally confused the modeset state tracking, since it clobbers crtc->enabled. Issue reported by Paulo Zanoni. v3: Rip out the entire crtc saving into struct intel_set_config, not just the restoring part. Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch> |
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