drm/atomic: Make mode_fixup() optional for check_modeset()
So the i915 driver can use the same logic for setting mode and active changed flags, without having to implement encoder helpers and the mode_fixup() callback. Cc: dri-devel@lists.freedestkop.org Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Acked-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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@ -280,6 +280,8 @@ mode_fixup(struct drm_atomic_state *state)
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*/
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encoder = conn_state->best_encoder;
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funcs = encoder->helper_private;
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if (!funcs)
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continue;
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if (encoder->bridge && encoder->bridge->funcs->mode_fixup) {
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ret = encoder->bridge->funcs->mode_fixup(
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@ -317,6 +319,9 @@ mode_fixup(struct drm_atomic_state *state)
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continue;
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funcs = crtc->helper_private;
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if (!funcs->mode_fixup)
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continue;
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ret = funcs->mode_fixup(crtc, &crtc_state->mode,
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&crtc_state->adjusted_mode);
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if (!ret) {
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