[PATCH v6 01/10] drm/atomic: Print debug message on atomic check failure

From: Lyude Paul
Date: Wed Apr 11 2018 - 15:32:08 EST


Does what it says on the label, it's a little confusing debugging atomic
check failures otherwise.

Cc: Manasi Navare <manasi.d.navare@xxxxxxxxx>
Cc: Ville SyrjÃlà <ville.syrjala@xxxxxxxxxxxxxxx>
Signed-off-by: Lyude Paul <lyude@xxxxxxxxxx>
---
drivers/gpu/drm/drm_atomic.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index 7d25c42f22db..972a7e9634ab 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -1705,8 +1705,11 @@ int drm_atomic_check_only(struct drm_atomic_state *state)
if (config->funcs->atomic_check)
ret = config->funcs->atomic_check(state->dev, state);

- if (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) {
--
2.14.3