4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Thierry Reding <[email protected]>

[ Upstream commit 192b4af6cd28cdad9b42fd79c21a90a2aeb0bec7 ]

Since commit 846c7dfc1193 ("drm/atomic: Try to preserve the crtc enabled
state in drm_atomic_remove_fb, v2."), removing the last framebuffer will
no longer disable the corresponding pipeline, which causes the KMS core
to complain about leaked connectors on driver unbind.

Fix this by calling drm_atomic_helper_shutdown() on driver unbind, which
will cause all display pipelines to be shut down and therefore drop the
extra references on the connectors.

Signed-off-by: Thierry Reding <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
 drivers/gpu/drm/tegra/drm.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -250,6 +250,7 @@ static void tegra_drm_unload(struct drm_
 
        drm_kms_helper_poll_fini(drm);
        tegra_drm_fb_exit(drm);
+       drm_atomic_helper_shutdown(drm);
        drm_mode_config_cleanup(drm);
 
        err = host1x_device_exit(device);


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