drm/msm/mdp5: add atomic_print_state support

We subclass drm_plane_state, so add mdp5_plane_atomic_print_state() to
dump out our own driver specific plane state.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1478358492-30738-7-git-send-email-robdclark@gmail.com

2 files changed, 29 insertions, 1 deletions

diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h
index 03738927be10..c6fbcfad2d59 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h
@@ -114,6 +114,18 @@ static inline u32 mdp5_read(struct mdp5_kms *mdp5_kms, u32 reg)
         return msm_readl(mdp5_kms->mmio + reg);
 }
 
+static inline const char *stage2name(enum mdp_mixer_stage_id stage)
+{
+        static const char *names[] = {
+#define NAME(n) [n] = #n
+                NAME(STAGE_UNUSED), NAME(STAGE_BASE),
+                NAME(STAGE0), NAME(STAGE1), NAME(STAGE2),
+                NAME(STAGE3), NAME(STAGE4), NAME(STAGE6),
+#undef NAME
+        };
+        return names[stage];
+}
+
 static inline const char *pipe2name(enum mdp5_pipe pipe)
 {
         static const char *names[] = {
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c
index cf50d3ec8d1b..8bf55e3450c5 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c
@@ -16,6 +16,7 @@
  * this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <drm/drm_print.h>
 #include "mdp5_kms.h"
 
 struct mdp5_plane {
@@ -181,6 +182,20 @@ done:
 #undef SET_PROPERTY
 }
 
+static void
+mdp5_plane_atomic_print_state(struct drm_printer *p,
+                const struct drm_plane_state *state)
+{
+        struct mdp5_plane_state *pstate = to_mdp5_plane_state(state);
+
+        drm_printf(p, "\tpremultiplied=%u\n", pstate->premultiplied);
+        drm_printf(p, "\tzpos=%u\n", pstate->zpos);
+        drm_printf(p, "\talpha=%u\n", pstate->alpha);
+        drm_printf(p, "\tstage=%s\n", stage2name(pstate->stage));
+        drm_printf(p, "\tmode_changed=%u\n", pstate->mode_changed);
+        drm_printf(p, "\tpending=%u\n", pstate->pending);
+}
+
 static void mdp5_plane_reset(struct drm_plane *plane)
 {
         struct mdp5_plane_state *mdp5_state;
@@ -244,6 +259,7 @@ static const struct drm_plane_funcs mdp5_plane_funcs = {
                 .reset = mdp5_plane_reset,
                 .atomic_duplicate_state = mdp5_plane_duplicate_state,
                 .atomic_destroy_state = mdp5_plane_destroy_state,
+                .atomic_print_state = mdp5_plane_atomic_print_state,
 };
 
 static int mdp5_plane_prepare_fb(struct drm_plane *plane,
@@ -913,7 +929,7 @@ struct drm_plane *mdp5_plane_init(struct drm_device *dev,
         type = private_plane ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY;
         ret = drm_universal_plane_init(dev, plane, 0xff, &mdp5_plane_funcs,
                                  mdp5_plane->formats, mdp5_plane->nformats,
-                                 type, NULL);
+                                 type, "%s", mdp5_plane->name);
         if (ret)
                 goto fail;