drm/sun4i: Add a few formats

The planes can do more than what was previously exposed. Add support for
them.

Since we still have the issue that the primary plane cannot have any alpha
component, we will expose only the non-alpha formats in the primary
formats, and the alpha formats will be exposed in the overlays.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>

2 files changed, 26 insertions, 0 deletions

diff --git a/drivers/gpu/drm/sun4i/sun4i_backend.c b/drivers/gpu/drm/sun4i/sun4i_backend.c
index 6e6c59a661b6..7eb2a965f83d 100644
--- a/drivers/gpu/drm/sun4i/sun4i_backend.c
+++ b/drivers/gpu/drm/sun4i/sun4i_backend.c
@@ -95,6 +95,22 @@ static int sun4i_backend_drm_format_to_layer(struct drm_plane *plane,
                 *mode = SUN4I_BACKEND_LAY_FBFMT_ARGB8888;
                 break;
 
+        case DRM_FORMAT_ARGB4444:
+                *mode = SUN4I_BACKEND_LAY_FBFMT_ARGB4444;
+                break;
+
+        case DRM_FORMAT_ARGB1555:
+                *mode = SUN4I_BACKEND_LAY_FBFMT_ARGB1555;
+                break;
+
+        case DRM_FORMAT_RGBA5551:
+                *mode = SUN4I_BACKEND_LAY_FBFMT_RGBA5551;
+                break;
+
+        case DRM_FORMAT_RGBA4444:
+                *mode = SUN4I_BACKEND_LAY_FBFMT_RGBA4444;
+                break;
+
         case DRM_FORMAT_XRGB8888:
                 *mode = SUN4I_BACKEND_LAY_FBFMT_XRGB8888;
                 break;
@@ -103,6 +119,10 @@ static int sun4i_backend_drm_format_to_layer(struct drm_plane *plane,
                 *mode = SUN4I_BACKEND_LAY_FBFMT_RGB888;
                 break;
 
+        case DRM_FORMAT_RGB565:
+                *mode = SUN4I_BACKEND_LAY_FBFMT_RGB565;
+                break;
+
         default:
                 return -EINVAL;
         }
diff --git a/drivers/gpu/drm/sun4i/sun4i_layer.c b/drivers/gpu/drm/sun4i/sun4i_layer.c
index f0035bf5efea..5d53c977bca5 100644
--- a/drivers/gpu/drm/sun4i/sun4i_layer.c
+++ b/drivers/gpu/drm/sun4i/sun4i_layer.c
@@ -73,12 +73,18 @@ static const struct drm_plane_funcs sun4i_backend_layer_funcs = {
 static const uint32_t sun4i_backend_layer_formats_primary[] = {
         DRM_FORMAT_ARGB8888,
         DRM_FORMAT_RGB888,
+        DRM_FORMAT_RGB565,
         DRM_FORMAT_XRGB8888,
 };
 
 static const uint32_t sun4i_backend_layer_formats_overlay[] = {
         DRM_FORMAT_ARGB8888,
+        DRM_FORMAT_ARGB4444,
+        DRM_FORMAT_ARGB1555,
+        DRM_FORMAT_RGBA5551,
+        DRM_FORMAT_RGBA4444,
         DRM_FORMAT_RGB888,
+        DRM_FORMAT_RGB565,
         DRM_FORMAT_XRGB8888,
 };