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-rw-r--r--drivers/gpu/drm/vc4/vc4_kms.c1
-rw-r--r--drivers/gpu/drm/vc4/vc4_plane.c34
2 files changed, 34 insertions, 1 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_kms.c b/drivers/gpu/drm/vc4/vc4_kms.c
index 4256f294c346..ba60153dddb5 100644
--- a/drivers/gpu/drm/vc4/vc4_kms.c
+++ b/drivers/gpu/drm/vc4/vc4_kms.c
@@ -215,6 +215,7 @@ int vc4_kms_load(struct drm_device *dev)
dev->mode_config.funcs = &vc4_mode_funcs;
dev->mode_config.preferred_depth = 24;
dev->mode_config.async_page_flip = true;
+ dev->mode_config.allow_fb_modifiers = true;
drm_mode_config_reset(dev);
diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c
index 61ad955645a5..c4c7af11fec5 100644
--- a/drivers/gpu/drm/vc4/vc4_plane.c
+++ b/drivers/gpu/drm/vc4/vc4_plane.c
@@ -906,6 +906,32 @@ out:
ctx);
}
+static bool vc4_format_mod_supported(struct drm_plane *plane,
+ uint32_t format,
+ uint64_t modifier)
+{
+ /* Support T_TILING for RGB formats only. */
+ switch (format) {
+ case DRM_FORMAT_XRGB8888:
+ case DRM_FORMAT_ARGB8888:
+ case DRM_FORMAT_ABGR8888:
+ case DRM_FORMAT_XBGR8888:
+ case DRM_FORMAT_RGB565:
+ case DRM_FORMAT_BGR565:
+ case DRM_FORMAT_ARGB1555:
+ case DRM_FORMAT_XRGB1555:
+ return true;
+ case DRM_FORMAT_YUV422:
+ case DRM_FORMAT_YVU422:
+ case DRM_FORMAT_YUV420:
+ case DRM_FORMAT_YVU420:
+ case DRM_FORMAT_NV12:
+ case DRM_FORMAT_NV16:
+ default:
+ return (modifier == DRM_FORMAT_MOD_LINEAR);
+ }
+}
+
static const struct drm_plane_funcs vc4_plane_funcs = {
.update_plane = vc4_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
@@ -914,6 +940,7 @@ static const struct drm_plane_funcs vc4_plane_funcs = {
.reset = vc4_plane_reset,
.atomic_duplicate_state = vc4_plane_duplicate_state,
.atomic_destroy_state = vc4_plane_destroy_state,
+ .format_mod_supported = vc4_format_mod_supported,
};
struct drm_plane *vc4_plane_init(struct drm_device *dev,
@@ -925,6 +952,11 @@ struct drm_plane *vc4_plane_init(struct drm_device *dev,
u32 num_formats = 0;
int ret = 0;
unsigned i;
+ static const uint64_t modifiers[] = {
+ DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED,
+ DRM_FORMAT_MOD_LINEAR,
+ DRM_FORMAT_MOD_INVALID
+ };
vc4_plane = devm_kzalloc(dev->dev, sizeof(*vc4_plane),
GFP_KERNEL);
@@ -945,7 +977,7 @@ struct drm_plane *vc4_plane_init(struct drm_device *dev,
ret = drm_universal_plane_init(dev, plane, 0,
&vc4_plane_funcs,
formats, num_formats,
- NULL, type, NULL);
+ modifiers, type, NULL);
drm_plane_helper_add(plane, &vc4_plane_helper_funcs);