[PATCH v2 01/16] drm/atomic: Add dev pointer to drm_private_obj

[Maxime Ripard <mripard@kernel.org>]

All the objects that need to implement some callbacks in KMS have a
pointer in there structure to the main drm_device.

However, it's not the case for drm_private_objs, which makes it harder
than it needs to be to implement some of its callbacks. Let's add that
pointer.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
 drivers/gpu/drm/drm_atomic.c | 1 +
 include/drm/drm_atomic.h     | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index ed5359a71f7e2cd8fa52b993e62ee65f8fed4537..39cb1479ac4d58cd71cf41d27d0d2a8a58ef5791 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -790,10 +790,11 @@ drm_atomic_private_obj_init(struct drm_device *dev,
 {
 	memset(obj, 0, sizeof(*obj));
 
 	drm_modeset_lock_init(&obj->lock);
 
+	obj->dev = dev;
 	obj->state = state;
 	obj->funcs = funcs;
 	list_add_tail(&obj->head, &dev->mode_config.privobj_list);
 
 	state->obj = obj;
diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
index 38636a593c9d98cadda85ccd67326cb152f0dd27..dac70f685361d8d29844acd1b0cc2f04f43a9499 100644
--- a/include/drm/drm_atomic.h
+++ b/include/drm/drm_atomic.h
@@ -282,10 +282,15 @@ struct drm_private_state_funcs {
  * commit to complete as the first step of
  * &drm_mode_config_helper_funcs.atomic_commit_tail, similar to
  * drm_atomic_helper_wait_for_dependencies().
  */
 struct drm_private_obj {
+	/**
+	 * @dev: parent DRM device
+	 */
+	struct drm_device *dev;
+
 	/**
 	 * @head: List entry used to attach a private object to a &drm_device
 	 * (queued to &drm_mode_config.privobj_list).
 	 */
 	struct list_head head;

-- 
2.51.0