[PATCH 07/22] drm/amd/display: Force full update in gpu reset

[Zaeem Mohamed]

From: Roman Li <Roman.Li at amd.com>

[Why]
While system undergoing gpu reset always do full update
to sync the dc state before and after reset.

[How]
Return true in should_reset_plane() if gpu reset detected

Cc: <stable at vger.kernel.org>

Reviewed-by: Aurabindo Pillai <aurabindo.pillai at amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello at amd.com>
Signed-off-by: Roman Li <Roman.Li at amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed at amd.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index dace1e42f412..46e0de6cc277 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -11122,6 +11122,9 @@ static bool should_reset_plane(struct drm_atomic_state *state,
 	    state->allow_modeset)
 		return true;
 
+	if (amdgpu_in_reset(adev) && state->allow_modeset)
+		return true;
+
 	/* Exit early if we know that we're adding or removing the plane. */
 	if (old_plane_state->crtc != new_plane_state->crtc)
 		return true;
-- 
2.34.1