From: Piotr Oniszczuk piotr.oniszczuk@gmail.com

Currently only linear formats are supported in sun4i-drm driver, but SoCs like H6 supports AFBC variant of some of them in multiple cores (GPU, VPU, DE3). Panfrost already implements AFBC compression and is sometimes confused what should be default choice (linear, AFBC) if DRM driver is not explicit about modifier support (MiniMyth2 distro with MythTV app).

After some discussion with Daniel Stone on #panfrost IRC, it was decided to make modifiers in sun4i-drm explicit, to avoid any kind of guessing, not just in panfrost, but everywhere. In fact, long term idea is to make modifier parameter in drm_universal_plane_init() mandatory (non NULL).

Signed-off-by: Piotr Oniszczuk piotr.oniszczuk@gmail.com Signed-off-by: Jernej Skrabec jernej.skrabec@gmail.com --- drivers/gpu/drm/sun4i/sun8i_ui_layer.c | 7 ++++++- drivers/gpu/drm/sun4i/sun8i_vi_layer.c | 8 +++++++- 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c index 0db164a774a1..e779855bcd6e 100644 --- a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c +++ b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c @@ -370,6 +370,11 @@ static const u32 sun8i_ui_layer_formats[] = { DRM_FORMAT_XRGB8888, };

+static const uint64_t sun8i_layer_modifiers[] = { + DRM_FORMAT_MOD_LINEAR, + DRM_FORMAT_MOD_INVALID +}; + struct sun8i_ui_layer *sun8i_ui_layer_init_one(struct drm_device *drm, struct sun8i_mixer *mixer, int index) @@ -392,7 +397,7 @@ struct sun8i_ui_layer *sun8i_ui_layer_init_one(struct drm_device *drm, &sun8i_ui_layer_funcs, sun8i_ui_layer_formats, ARRAY_SIZE(sun8i_ui_layer_formats), - NULL, type, NULL); + sun8i_layer_modifiers, type, NULL); if (ret) { dev_err(drm->dev, "Couldn't initialize layer\n"); return ERR_PTR(ret); diff --git a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c index 46420780db59..1c86c2dd0bbf 100644 --- a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c +++ b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c @@ -534,6 +534,11 @@ static const u32 sun8i_vi_layer_de3_formats[] = { DRM_FORMAT_YVU422, };

+static const uint64_t sun8i_layer_modifiers[] = { + DRM_FORMAT_MOD_LINEAR, + DRM_FORMAT_MOD_INVALID +}; + struct sun8i_vi_layer *sun8i_vi_layer_init_one(struct drm_device *drm, struct sun8i_mixer *mixer, int index) @@ -560,7 +565,8 @@ struct sun8i_vi_layer *sun8i_vi_layer_init_one(struct drm_device *drm, ret = drm_universal_plane_init(drm, &layer->plane, 0, &sun8i_vi_layer_funcs, formats, format_count, - NULL, DRM_PLANE_TYPE_OVERLAY, NULL); + sun8i_layer_modifiers, + DRM_PLANE_TYPE_OVERLAY, NULL); if (ret) { dev_err(drm->dev, "Couldn't initialize layer\n"); return ERR_PTR(ret);