[mutter] kms/crtc: Add debug logging of supported vs unsupported properties

[Marge Bot <marge-bot src gnome org>]

commit cc20584032faff174f2d924464617a68661516e4
Author: Daniel van Vugt <daniel van vugt canonical com>
Date:   Wed Apr 13 16:17:23 2022 +0800

    kms/crtc: Add debug logging of supported vs unsupported properties
    
    Unsupported properties are particularly common in an Nvidia/hybrid
    setup so we don't want to make it a warning that's always visible.
    
    Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2360>

 src/backends/native/meta-kms-crtc.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)
---
diff --git a/src/backends/native/meta-kms-crtc.c b/src/backends/native/meta-kms-crtc.c
index 6706e1656e..1ae3d8417d 100644
--- a/src/backends/native/meta-kms-crtc.c
+++ b/src/backends/native/meta-kms-crtc.c
@@ -369,6 +369,7 @@ init_properties (MetaKmsCrtc       *crtc,
   MetaKmsCrtcPropTable *prop_table = &crtc->prop_table;
   int fd;
   drmModeObjectProperties *drm_props;
+  int i;
 
   *prop_table = (MetaKmsCrtcPropTable) {
     .props = {
@@ -405,6 +406,17 @@ init_properties (MetaKmsCrtc       *crtc,
                                         crtc);
 
   drmModeFreeObjectProperties (drm_props);
+
+  for (i = 0; i < META_KMS_CRTC_N_PROPS; i++)
+    {
+      meta_topic (META_DEBUG_KMS,
+                  "%s (%s) CRTC %u property '%s' is %s",
+                  meta_kms_impl_device_get_path (impl_device),
+                  meta_kms_impl_device_get_driver_name (impl_device),
+                  drm_crtc->crtc_id,
+                  prop_table->props[i].name,
+                  prop_table->props[i].prop_id ? "supported" : "unsupported");
+    }
 }
 
 MetaKmsCrtc *