drm/atomic: Add __drm_atomic_helper_connector_reset, v2.
This is useful for drivers that subclass connector_state, like tegra. Changes since v1: - Docbook updates. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1451908400-25147-2-git-send-email-maarten.lankhorst@linux.intel.com Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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@ -2605,6 +2605,28 @@ void drm_atomic_helper_plane_destroy_state(struct drm_plane *plane,
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}
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EXPORT_SYMBOL(drm_atomic_helper_plane_destroy_state);
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/**
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* __drm_atomic_helper_connector_reset - reset state on connector
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* @connector: drm connector
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* @conn_state: connector state to assign
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*
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* Initializes the newly allocated @conn_state and assigns it to
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* #connector ->state, usually required when initializing the drivers
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* or when called from the ->reset hook.
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*
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* This is useful for drivers that subclass the connector state.
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*/
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void
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__drm_atomic_helper_connector_reset(struct drm_connector *connector,
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struct drm_connector_state *conn_state)
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{
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if (conn_state)
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conn_state->connector = connector;
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connector->state = conn_state;
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}
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EXPORT_SYMBOL(__drm_atomic_helper_connector_reset);
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/**
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* drm_atomic_helper_connector_reset - default ->reset hook for connectors
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* @connector: drm connector
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@ -2615,11 +2637,11 @@ EXPORT_SYMBOL(drm_atomic_helper_plane_destroy_state);
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*/
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void drm_atomic_helper_connector_reset(struct drm_connector *connector)
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{
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kfree(connector->state);
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connector->state = kzalloc(sizeof(*connector->state), GFP_KERNEL);
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struct drm_connector_state *conn_state =
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kzalloc(sizeof(*conn_state), GFP_KERNEL);
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if (connector->state)
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connector->state->connector = connector;
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kfree(connector->state);
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__drm_atomic_helper_connector_reset(connector, conn_state);
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}
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EXPORT_SYMBOL(drm_atomic_helper_connector_reset);
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@ -126,6 +126,8 @@ void __drm_atomic_helper_plane_destroy_state(struct drm_plane *plane,
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void drm_atomic_helper_plane_destroy_state(struct drm_plane *plane,
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struct drm_plane_state *state);
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void __drm_atomic_helper_connector_reset(struct drm_connector *connector,
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struct drm_connector_state *conn_state);
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void drm_atomic_helper_connector_reset(struct drm_connector *connector);
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void
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__drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector,
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