drm/vc4: crtc: Copy assigned channel to the CRTC
Accessing the crtc->state pointer from outside the modesetting context is not allowed. We thus need to copy whatever we need from the KMS state to our structure in order to access it. In VC4, a number of users of that pointers have crept in over the years, and the previous commits removed them all but the HVS channel a CRTC has been assigned. Let's move this channel in struct vc4_crtc at atomic_begin() time, drop it from our private state structure, and remove our use of crtc->state from our vblank handler entirely. Link: https://lore.kernel.org/all/YWgteNaNeaS9uWDe@phenom.ffwll.local/ Link: https://lore.kernel.org/r/20211025141113.702757-4-maxime@cerno.tech Fixes: 87ebcd42 ("drm/vc4: crtc: Assign output to channel automatically") Acked-by:Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by:
Maxime Ripard <maxime@cerno.tech>
parent
0c250c15
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