drm/i915: Give meaningful names to all the planes

Let's name our planes in a way that makes sense wrt. the spec:
- skl+ -> "plane 1A", "plane 2A", "plane 1C", "cursor A" etc.
- g4x+ -> "primary A", "primary B", "sprite A", "cursor C" etc.
- pre-g4x -> "plane A", "cursor B" etc.

v2: Rebase on top of the fixed/cleaned error paths
    Use a local 'name' variable to make things easier
v3: Pass the name as a function argument to drm_universal_plane_init() (Jani)
v3: Pass the printf style string to drm_universal_plane_init()

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1464371966-15190-6-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>

2 files changed, 32 insertions, 9 deletions

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index ada0198510d7..888fc3ff8d6b 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -14233,10 +14233,24 @@ static struct drm_plane *intel_primary_plane_create(struct drm_device *dev,
                 primary->disable_plane = i9xx_disable_primary_plane;
         }
 
-        ret = drm_universal_plane_init(dev, &primary->base, 0,
-                                       &intel_plane_funcs,
-                                       intel_primary_formats, num_formats,
-                                       DRM_PLANE_TYPE_PRIMARY, NULL);
+        if (INTEL_INFO(dev)->gen >= 9)
+                ret = drm_universal_plane_init(dev, &primary->base, 0,
+                                               &intel_plane_funcs,
+                                               intel_primary_formats, num_formats,
+                                               DRM_PLANE_TYPE_PRIMARY,
+                                               "plane 1%c", pipe_name(pipe));
+        else if (INTEL_INFO(dev)->gen >= 5 || IS_G4X(dev))
+                ret = drm_universal_plane_init(dev, &primary->base, 0,
+                                               &intel_plane_funcs,
+                                               intel_primary_formats, num_formats,
+                                               DRM_PLANE_TYPE_PRIMARY,
+                                               "primary %c", pipe_name(pipe));
+        else
+                ret = drm_universal_plane_init(dev, &primary->base, 0,
+                                               &intel_plane_funcs,
+                                               intel_primary_formats, num_formats,
+                                               DRM_PLANE_TYPE_PRIMARY,
+                                               "plane %c", plane_name(primary->plane));
         if (ret)
                 goto fail;
 
@@ -14394,7 +14408,8 @@ static struct drm_plane *intel_cursor_plane_create(struct drm_device *dev,
                                        &intel_plane_funcs,
                                        intel_cursor_formats,
                                        ARRAY_SIZE(intel_cursor_formats),
-                                       DRM_PLANE_TYPE_CURSOR, NULL);
+                                       DRM_PLANE_TYPE_CURSOR,
+                                       "cursor %c", pipe_name(pipe));
         if (ret)
                 goto fail;
 
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index 97b1a54eb09f..324ccb06397d 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -1114,10 +1114,18 @@ intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane)
 
         possible_crtcs = (1 << pipe);
 
-        ret = drm_universal_plane_init(dev, &intel_plane->base, possible_crtcs,
-                                       &intel_plane_funcs,
-                                       plane_formats, num_plane_formats,
-                                       DRM_PLANE_TYPE_OVERLAY, NULL);
+        if (INTEL_INFO(dev)->gen >= 9)
+                ret = drm_universal_plane_init(dev, &intel_plane->base, possible_crtcs,
+                                               &intel_plane_funcs,
+                                               plane_formats, num_plane_formats,
+                                               DRM_PLANE_TYPE_OVERLAY,
+                                               "plane %d%c", plane + 2, pipe_name(pipe));
+        else
+                ret = drm_universal_plane_init(dev, &intel_plane->base, possible_crtcs,
+                                               &intel_plane_funcs,
+                                               plane_formats, num_plane_formats,
+                                               DRM_PLANE_TYPE_OVERLAY,
+                                               "sprite %c", sprite_name(pipe, plane));
         if (ret)
                 goto fail;