diff options
| author | Nancy.Lin <nancy.lin@mediatek.com> | 2023-03-21 20:18:56 +0800 |
|---|---|---|
| committer | Chun-Kuang Hu <chunkuang.hu@kernel.org> | 2023-03-22 16:31:21 +0000 |
| commit | cb1d6bcca54261932948b9c55bd23daaae1606d4 (patch) | |
| tree | b8bcb39b0ea1937ad14063a208414481dec00067 /drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | |
| parent | 453c3364632a1f305db7d425dc9f8d6711cd3491 (diff) | |
drm/mediatek: Add dma dev get function
This is a preparation for adding support for the ovl_adaptor sub driver
Ovl_adaptor is a DRM sub driver, which doesn't have dma dev. Add
dma_dev_get function for getting representative dma dev in ovl_adaptor.
Signed-off-by: Nancy.Lin <nancy.lin@mediatek.com>
Reviewed-by: AngeloGioachino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20230321121859.2355-5-nancy.lin@mediatek.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h')
| -rw-r--r-- | drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h index 7f2e638cfdc2..1b03496b641a 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h @@ -71,6 +71,7 @@ struct mtk_ddp_comp_funcs { void (*bgclr_in_off)(struct device *dev); void (*ctm_set)(struct device *dev, struct drm_crtc_state *state); + struct device * (*dma_dev_get)(struct device *dev); const u32 *(*get_formats)(struct device *dev); size_t (*get_num_formats)(struct device *dev); }; @@ -205,6 +206,13 @@ static inline void mtk_ddp_ctm_set(struct mtk_ddp_comp *comp, comp->funcs->ctm_set(comp->dev, state); } +static inline struct device *mtk_ddp_comp_dma_dev_get(struct mtk_ddp_comp *comp) +{ + if (comp->funcs && comp->funcs->dma_dev_get) + return comp->funcs->dma_dev_get(comp->dev); + return comp->dev; +} + static inline const u32 *mtk_ddp_comp_get_formats(struct mtk_ddp_comp *comp) { |