drm/atomic: Print debug message on atomic check failure
Does what it says on the label, it's a little confusing debugging atomic
check failures otherwise.
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180411234302.2896-2-lyude@redhat.com
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index 7d25c42..0da8c5e 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -1702,11 +1702,15 @@ int drm_atomic_check_only(struct drm_atomic_state *state)
}
}
- if (config->funcs->atomic_check)
+ if (config->funcs->atomic_check) {
ret = config->funcs->atomic_check(state->dev, state);
- if (ret)
- return ret;
+ if (ret) {
+ DRM_DEBUG_ATOMIC("atomic driver check for %p failed: %d\n",
+ state, ret);
+ return ret;
+ }
+ }
if (!state->allow_modeset) {
for_each_new_crtc_in_state(state, crtc, crtc_state, i) {