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authorMaarten Maathuis <madman2003@gmail.com>2009-08-19 00:56:45 +0200
committerDave Airlie <airlied@redhat.com>2009-08-31 09:09:29 +1000
commitff846ab7f76ffecba4f0bef026163d2a2364d7d0 (patch)
tree5a38ce7d88bf6996598360cf348489aec8b6a2b4 /drivers/gpu/drm/drm_crtc_helper.c
parentf380ef86916904e4b79f7bec599deb51057b2d0c (diff)
downloadblackbird-op-linux-ff846ab7f76ffecba4f0bef026163d2a2364d7d0.tar.gz
blackbird-op-linux-ff846ab7f76ffecba4f0bef026163d2a2364d7d0.zip
drm/crtc_helper: NULL encoder->crtc when switching encoders
- Previously the old encoder would be called during modeset and without a connector bad things happened. Signed-off-by: Maarten Maathuis <madman2003@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/drm_crtc_helper.c')
-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 a3837b39bb8f..205349ea1075 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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