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    Subject[PATCH 4.14 271/496] drm/tegra: Shutdown on driver unbind
    Date
    4.14-stable review patch.  If anyone has any objections, please let me know.

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

    From: Thierry Reding <treding@nvidia.com>

    [ 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 <treding@nvidia.com>
    Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    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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