diff options
| author | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2016-01-04 12:53:16 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-01-05 09:40:58 +0100 |
| commit | 4cd39917ddb2fb5691e05b13b13f1f2398343b3e (patch) | |
| tree | 52c3576c292b9130493b98452e18836322668fe4 | |
| parent | drm/i915: Set connector_state->connector using the helper. (diff) | |
| download | linux-4cd39917ddb2fb5691e05b13b13f1f2398343b3e.tar.xz linux-4cd39917ddb2fb5691e05b13b13f1f2398343b3e.zip | |
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>
| -rw-r--r-- | drivers/gpu/drm/drm_atomic_helper.c | 30 | ||||
| -rw-r--r-- | include/drm/drm_atomic_helper.h | 2 |
2 files changed, 28 insertions, 4 deletions
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index 268d37f26960..26d258d0618b 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -2606,6 +2606,28 @@ void drm_atomic_helper_plane_destroy_state(struct drm_plane *plane, EXPORT_SYMBOL(drm_atomic_helper_plane_destroy_state); /** + * __drm_atomic_helper_connector_reset - reset state on connector + * @connector: drm connector + * @conn_state: connector state to assign + * + * Initializes the newly allocated @conn_state and assigns it to + * #connector ->state, usually required when initializing the drivers + * or when called from the ->reset hook. + * + * This is useful for drivers that subclass the connector state. + */ +void +__drm_atomic_helper_connector_reset(struct drm_connector *connector, + struct drm_connector_state *conn_state) +{ + if (conn_state) + conn_state->connector = connector; + + connector->state = conn_state; +} +EXPORT_SYMBOL(__drm_atomic_helper_connector_reset); + +/** * drm_atomic_helper_connector_reset - default ->reset hook for connectors * @connector: drm connector * @@ -2615,11 +2637,11 @@ EXPORT_SYMBOL(drm_atomic_helper_plane_destroy_state); */ void drm_atomic_helper_connector_reset(struct drm_connector *connector) { - kfree(connector->state); - connector->state = kzalloc(sizeof(*connector->state), GFP_KERNEL); + struct drm_connector_state *conn_state = + kzalloc(sizeof(*conn_state), GFP_KERNEL); - if (connector->state) - connector->state->connector = connector; + kfree(connector->state); + __drm_atomic_helper_connector_reset(connector, conn_state); } EXPORT_SYMBOL(drm_atomic_helper_connector_reset); diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h index a286cce98720..89d008dc08e2 100644 --- a/include/drm/drm_atomic_helper.h +++ b/include/drm/drm_atomic_helper.h @@ -126,6 +126,8 @@ void __drm_atomic_helper_plane_destroy_state(struct drm_plane *plane, void drm_atomic_helper_plane_destroy_state(struct drm_plane *plane, struct drm_plane_state *state); +void __drm_atomic_helper_connector_reset(struct drm_connector *connector, + struct drm_connector_state *conn_state); void drm_atomic_helper_connector_reset(struct drm_connector *connector); void __drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector, |