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-rw-r--r--drivers/gpu/drm/drm_crtc_helper.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index a3837b3..205349e 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -823,6 +823,10 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
if (new_encoder != connector->encoder) {
DRM_DEBUG_KMS("encoder changed, full mode switch\n");
mode_changed = true;
+ /* If the encoder is reused for another connector, then
+ * the appropriate crtc will be set later.
+ */
+ connector->encoder->crtc = NULL;
connector->encoder = new_encoder;
}
}
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