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Subject[PATCH v2 25/25] drm/mediatek: enable allow_fb_modifiers for mediatek drm
Date
From: Yongqiang Niu <yongqiang.niu@mediatek.com>

enable allow_fb_modifiers for mediatek drm

Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
---
drivers/gpu/drm/mediatek/mtk_drm_drv.c | 2 ++
drivers/gpu/drm/mediatek/mtk_drm_plane.c | 15 ++++++++++++++-
2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index 942789d..a45c7b4 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -277,6 +277,8 @@ static int mtk_drm_kms_init(struct drm_device *drm)
drm->mode_config.max_height = 4096;
drm->mode_config.funcs = &mtk_drm_mode_config_funcs;

+ drm->mode_config.allow_fb_modifiers = true;
+
ret = component_bind_all(drm->dev, drm);
if (ret)
goto err_config_cleanup;
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
index f7e6aa1..106939b 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
@@ -77,6 +77,13 @@ static void mtk_drm_plane_destroy_state(struct drm_plane *plane,
kfree(to_mtk_plane_state(state));
}

+static bool mtk_plane_format_mod_supported(struct drm_plane *plane,
+ uint32_t format,
+ uint64_t modifier)
+{
+ return (modifier == DRM_FORMAT_MOD_LINEAR);
+}
+
static const struct drm_plane_funcs mtk_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
@@ -84,6 +91,7 @@ static void mtk_drm_plane_destroy_state(struct drm_plane *plane,
.reset = mtk_plane_reset,
.atomic_duplicate_state = mtk_plane_duplicate_state,
.atomic_destroy_state = mtk_drm_plane_destroy_state,
+ .format_mod_supported = mtk_plane_format_mod_supported,
};

static int mtk_plane_atomic_check(struct drm_plane *plane,
@@ -163,10 +171,15 @@ int mtk_plane_init(struct drm_device *dev, struct drm_plane *plane,
unsigned long possible_crtcs, enum drm_plane_type type)
{
int err;
+ static const uint64_t modifiers[] = {
+ DRM_FORMAT_MOD_LINEAR,
+ DRM_FORMAT_MOD_INVALID
+ };

err = drm_universal_plane_init(dev, plane, possible_crtcs,
&mtk_plane_funcs, formats,
- ARRAY_SIZE(formats), NULL, type, NULL);
+ ARRAY_SIZE(formats), modifiers,
+ type, NULL);
if (err) {
DRM_ERROR("failed to initialize plane\n");
return err;
--
1.8.1.1.dirty
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