[PATCH v5 02/15] drm/i915/display: Handle struct drm_plane_state.ignore_damage_clips

[Thomas Zimmermann <tzimmermann@suse.de>]

The mode-setting pipeline can disabled damage clippings for a commit
by setting ignore_damage_clips in struct drm_plane_state. The commit
will then do a full display update. Commit 35ed38d58257 ("drm: Allow
drivers to indicate the damage helpers to ignore damage clips") introduced
ignore_damage_clips to selectively ignore damage clipping in certain
framebuffer changes.

The i915 driver does not modify the flag, but DRM's damage iterator
will soon rely on it. Calling drm_atomic_helper_check_plane_damage()
right before drm_atomic_helper_damage_merged() guarantees that it
has the correct state. The i915 driver does not do this elsewhere
so far.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 35ed38d58257 ("drm: Allow drivers to indicate the damage helpers to ignore damage clips")
Cc: <stable@vger.kernel.org> # v6.4+
Cc: Javier Martinez Canillas <javierm@redhat.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Zack Rusin <zackr@vmware.com>
Cc: dri-devel@lists.freedesktop.org
Cc: <stable@vger.kernel.org> # v6.8+
---
 drivers/gpu/drm/i915/display/intel_psr.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index e138982dc91f..e4f43eb5bd72 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -3018,6 +3018,9 @@ int intel_psr2_sel_fetch_update(struct intel_atomic_state *state,
 		src = drm_plane_state_src(&new_plane_state->uapi);
 		drm_rect_fp_to_int(&src, &src);
 
+		/* Prepare plane-damage state before using it */
+		drm_atomic_helper_check_plane_damage(&state->base, &new_plane_state->uapi);
+
 		if (!drm_atomic_helper_damage_merged(&old_plane_state->uapi,
 						     &new_plane_state->uapi, &damaged_area))
 			continue;
-- 
2.54.0