Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 4c18d301 authored by Daniel Vetter's avatar Daniel Vetter
Browse files

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: default avatarMaarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@intel.com>
parent 3d51d2d2

drivers/gpu/drm/drm_atomic_helper.c

+20 −3
Original line number Diff line number Diff line
@@ -619,8 +619,22 @@ disable_outputs(struct drm_device *dev, struct drm_atomic_state *old_state) 
	}

}



static void

set_routing_links(struct drm_device *dev, struct drm_atomic_state *old_state)

/**

 * drm_atomic_helper_update_legacy_modeset_state - update legacy modeset state

 * @dev: DRM device

 * @old_state: atomic state object with old state structures

 *

 * This function updates all the various legacy modeset state pointers in

 * connectors, encoders and crtcs. It also updates the timestamping constants

 * used for precise vblank timestamps by calling

 * drm_calc_timestamping_constants().

 *

 * Drivers can use this for building their own atomic commit if they don't have

 * a pure helper-based modeset implementation.

 */

void

drm_atomic_helper_update_legacy_modeset_state(struct drm_device *dev,

					      struct drm_atomic_state *old_state)

{

	struct drm_connector *connector;

	struct drm_connector_state *old_conn_state;
@@ -663,6 +677,7 @@ set_routing_links(struct drm_device *dev, struct drm_atomic_state *old_state) 
							&crtc->state->adjusted_mode);

	}

}

EXPORT_SYMBOL(drm_atomic_helper_update_legacy_modeset_state);



static void

crtc_set_mode(struct drm_device *dev, struct drm_atomic_state *old_state)
@@ -741,7 +756,9 @@ void drm_atomic_helper_commit_modeset_disables(struct drm_device *dev, 
					       struct drm_atomic_state *old_state)

{

	disable_outputs(dev, old_state);

	set_routing_links(dev, old_state);



	drm_atomic_helper_update_legacy_modeset_state(dev, old_state);



	crtc_set_mode(dev, old_state);

}

EXPORT_SYMBOL(drm_atomic_helper_commit_modeset_disables);

include/drm/drm_atomic_helper.h

+4 −0
Original line number Diff line number Diff line
@@ -43,6 +43,10 @@ int drm_atomic_helper_commit(struct drm_device *dev, 
void drm_atomic_helper_wait_for_vblanks(struct drm_device *dev,

					struct drm_atomic_state *old_state);



void

drm_atomic_helper_update_legacy_modeset_state(struct drm_device *dev,

					      struct drm_atomic_state *old_state);



void drm_atomic_helper_commit_modeset_disables(struct drm_device *dev,

					       struct drm_atomic_state *state);

void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev,