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drm/crtc_helper: NULL encoder->crtc when switching encoders

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- 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>
This commit is contained in:
Maarten Maathuis 2009-08-19 00:56:45 +02:00 committed by Dave Airlie
parent f380ef8691
commit ff846ab7f7
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/drm_crtc_helper.c
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@ -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;
}
}