| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.4 075/192] [PATCH 078/135] drm/atomic: Do not unset crtc when an encoder is stolen | Date | Mon, 12 Sep 2016 18:59:44 +0200 |
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4.4-stable review patch. If anyone has any objections, please let me know.
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[ Upstream commit 97a8df90875f72ba3b4c3320759fd93cea743261 ]
While we steal the encoder away from the connector the connector may be updated to use a different encoder.
Without this change if 2 connectors swap encoders one of them will end up without a crtc.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1452160762-30487-5-git-send-email-maarten.lankhorst@linux.intel.com Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/gpu/drm/drm_atomic_helper.c | 4 ---- 1 file changed, 4 deletions(-)
--- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -108,7 +108,6 @@ steal_encoder(struct drm_atomic_state *s struct drm_crtc_state *crtc_state; struct drm_connector *connector; struct drm_connector_state *connector_state; - int ret; /* * We can only steal an encoder coming from a connector, which means we @@ -139,9 +138,6 @@ steal_encoder(struct drm_atomic_state *s if (IS_ERR(connector_state)) return PTR_ERR(connector_state); - ret = drm_atomic_set_crtc_for_connector(connector_state, NULL); - if (ret) - return ret; connector_state->best_encoder = NULL; }
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