diff options
author | Sean Paul <seanpaul@chromium.org> | 2019-11-06 00:10:18 +0300 |
---|---|---|
committer | CK Hu <ck.hu@mediatek.com> | 2019-11-06 11:00:44 +0300 |
commit | 31c5558dae0513bd2bae33ea37543f584c6c35a5 (patch) | |
tree | adf7cf65a43edc7d2a56aa4e05b44c7c6c791250 /drivers/gpu/drm/mediatek | |
parent | ed24d5d05e5d6cdae1358c71278041d75ef51051 (diff) | |
download | linux-31c5558dae0513bd2bae33ea37543f584c6c35a5.tar.xz |
drm/mediatek: Refactor plane init
Add a couple of functions which enumerate the number of planes for a
component and initialize the planes for a component.
No functional changes in this patch, but it will allow us to selectively
support rotation if the component supports it.
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: CK Hu <ck.hu@mediatek.com>
Diffstat (limited to 'drivers/gpu/drm/mediatek')
-rw-r--r-- | drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 77 |
1 files changed, 59 insertions, 18 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c index b841d3706d8b..7d0f50da8e40 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c @@ -543,14 +543,63 @@ void mtk_crtc_ddp_irq(struct drm_crtc *crtc, struct mtk_ddp_comp *comp) mtk_drm_finish_page_flip(mtk_crtc); } +static int mtk_drm_crtc_num_comp_planes(struct mtk_drm_crtc *mtk_crtc, + int comp_idx) +{ + struct mtk_ddp_comp *comp; + + if (comp_idx > 1) + return 0; + + comp = mtk_crtc->ddp_comp[comp_idx]; + if (!comp->funcs) + return 0; + + if (comp_idx == 1 && !comp->funcs->bgclr_in_on) + return 0; + + return mtk_ddp_comp_layer_nr(comp); +} + +static inline +enum drm_plane_type mtk_drm_crtc_plane_type(unsigned int plane_idx) +{ + if (plane_idx == 0) + return DRM_PLANE_TYPE_PRIMARY; + else if (plane_idx == 1) + return DRM_PLANE_TYPE_CURSOR; + else + return DRM_PLANE_TYPE_OVERLAY; + +} + +static int mtk_drm_crtc_init_comp_planes(struct drm_device *drm_dev, + struct mtk_drm_crtc *mtk_crtc, + int comp_idx, int pipe) +{ + int num_planes = mtk_drm_crtc_num_comp_planes(mtk_crtc, comp_idx); + int i, ret; + + for (i = 0; i < num_planes; i++) { + ret = mtk_plane_init(drm_dev, + &mtk_crtc->planes[mtk_crtc->layer_nr], + BIT(pipe), + mtk_drm_crtc_plane_type(mtk_crtc->layer_nr)); + if (ret) + return ret; + + mtk_crtc->layer_nr++; + } + return 0; +} + int mtk_drm_crtc_create(struct drm_device *drm_dev, const enum mtk_ddp_comp_id *path, unsigned int path_len) { struct mtk_drm_private *priv = drm_dev->dev_private; struct device *dev = drm_dev->dev; struct mtk_drm_crtc *mtk_crtc; - enum drm_plane_type type; - unsigned int zpos; + unsigned int num_comp_planes = 0; int pipe = priv->num_pipes; int ret; int i; @@ -606,23 +655,15 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev, mtk_crtc->ddp_comp[i] = comp; } - mtk_crtc->layer_nr = mtk_ddp_comp_layer_nr(mtk_crtc->ddp_comp[0]); - if (mtk_crtc->ddp_comp_nr > 1) { - struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[1]; + for (i = 0; i < mtk_crtc->ddp_comp_nr; i++) + num_comp_planes += mtk_drm_crtc_num_comp_planes(mtk_crtc, i); + + mtk_crtc->planes = devm_kcalloc(dev, num_comp_planes, + sizeof(struct drm_plane), GFP_KERNEL); - if (comp->funcs->bgclr_in_on) - mtk_crtc->layer_nr += mtk_ddp_comp_layer_nr(comp); - } - mtk_crtc->planes = devm_kcalloc(dev, mtk_crtc->layer_nr, - sizeof(struct drm_plane), - GFP_KERNEL); - - for (zpos = 0; zpos < mtk_crtc->layer_nr; zpos++) { - type = (zpos == 0) ? DRM_PLANE_TYPE_PRIMARY : - (zpos == 1) ? DRM_PLANE_TYPE_CURSOR : - DRM_PLANE_TYPE_OVERLAY; - ret = mtk_plane_init(drm_dev, &mtk_crtc->planes[zpos], - BIT(pipe), type); + for (i = 0; i < mtk_crtc->ddp_comp_nr; i++) { + ret = mtk_drm_crtc_init_comp_planes(drm_dev, mtk_crtc, i, + pipe); if (ret) return ret; } |