drm/atomic-helpers: Export drm_atomic_helper_update_legacy_modeset_state
This is useful for drivers which have their own modeset infrastructure but want to reuse most of the legacy state frobbery from the helpers. i915 wants this. v2: Add header declaration. Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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@ -619,8 +619,22 @@ disable_outputs(struct drm_device *dev, struct drm_atomic_state *old_state)
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}
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}
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static void
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set_routing_links(struct drm_device *dev, struct drm_atomic_state *old_state)
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/**
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* drm_atomic_helper_update_legacy_modeset_state - update legacy modeset state
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* @dev: DRM device
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* @old_state: atomic state object with old state structures
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*
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* This function updates all the various legacy modeset state pointers in
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* connectors, encoders and crtcs. It also updates the timestamping constants
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* used for precise vblank timestamps by calling
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* drm_calc_timestamping_constants().
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*
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* Drivers can use this for building their own atomic commit if they don't have
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* a pure helper-based modeset implementation.
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*/
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void
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drm_atomic_helper_update_legacy_modeset_state(struct drm_device *dev,
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struct drm_atomic_state *old_state)
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{
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struct drm_connector *connector;
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struct drm_connector_state *old_conn_state;
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@ -663,6 +677,7 @@ set_routing_links(struct drm_device *dev, struct drm_atomic_state *old_state)
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&crtc->state->adjusted_mode);
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}
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}
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EXPORT_SYMBOL(drm_atomic_helper_update_legacy_modeset_state);
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static void
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crtc_set_mode(struct drm_device *dev, struct drm_atomic_state *old_state)
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@ -741,7 +756,9 @@ void drm_atomic_helper_commit_modeset_disables(struct drm_device *dev,
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struct drm_atomic_state *old_state)
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{
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disable_outputs(dev, old_state);
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set_routing_links(dev, old_state);
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drm_atomic_helper_update_legacy_modeset_state(dev, old_state);
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crtc_set_mode(dev, old_state);
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}
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EXPORT_SYMBOL(drm_atomic_helper_commit_modeset_disables);
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@ -43,6 +43,10 @@ int drm_atomic_helper_commit(struct drm_device *dev,
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void drm_atomic_helper_wait_for_vblanks(struct drm_device *dev,
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struct drm_atomic_state *old_state);
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void
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drm_atomic_helper_update_legacy_modeset_state(struct drm_device *dev,
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struct drm_atomic_state *old_state);
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void drm_atomic_helper_commit_modeset_disables(struct drm_device *dev,
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struct drm_atomic_state *state);
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void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev,
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