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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-11-18 18:46:48 +0100 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2015-11-19 17:11:13 +0200 |
| commit | 5481c8fb1da2a573861095fbea078f30c664d0bd (patch) | |
| tree | a4cecbec6c186055d530adf546c2bfe3548bd490 /drivers/gpu/drm/drm_atomic_helper.c | |
| parent | 83926117273cd6d9ffa1b5ff0cc566ad38648b70 (diff) | |
| download | lwn-5481c8fb1da2a573861095fbea078f30c664d0bd.tar.gz lwn-5481c8fb1da2a573861095fbea078f30c664d0bd.zip | |
drm/atomic-helper: Check encoder/crtc constraints
This was totally lost when I originally created the atomic helpers.
We probably should also check possible_clones in the helpers, but
since the legacy ones didn't do that this is for a separate patch.
Reported-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Daniel Stone <daniels@collabora.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Tested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1447868808-10266-1-git-send-email-daniel.vetter@ffwll.ch
Diffstat (limited to 'drivers/gpu/drm/drm_atomic_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_atomic_helper.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index cd398a245d2e..e5aec45bf985 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -210,6 +210,14 @@ update_connector_routing(struct drm_atomic_state *state, int conn_idx) return -EINVAL; } + if (!drm_encoder_crtc_ok(new_encoder, connector_state->crtc)) { + DRM_DEBUG_ATOMIC("[ENCODER:%d:%s] incompatible with [CRTC:%d]\n", + new_encoder->base.id, + new_encoder->name, + connector_state->crtc->base.id); + return -EINVAL; + } + if (new_encoder == connector_state->best_encoder) { DRM_DEBUG_ATOMIC("[CONNECTOR:%d:%s] keeps [ENCODER:%d:%s], now on [CRTC:%d]\n", connector->base.id, |