On Mon, Dec 24, 2018 at 6:52 PM Yongqiang Niu
<yongqiang....@mediatek.com> wrote:
>
> This patch add ovl0/ovl0_2l usecase
>
> Signed-off-by: Yongqiang Niu <yongqiang....@mediatek.com>
> ---
> drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 38
> ++++++++++++++++++++++++++++++---
> 1 file changed, 35 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> index a5af4be..25cf063 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> @@ -283,6 +283,15 @@ static int mtk_crtc_ddp_hw_init(struct mtk_drm_crtc
> *mtk_crtc)
>
> for (i = 0; i < mtk_crtc->ddp_comp_nr; i++) {
> struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[i];
> + enum mtk_ddp_comp_id prev = DDP_COMPONENT_ID_MAX;
> +
> + if (i > 0) {
> + struct mtk_ddp_comp *comp_prev;
> +
> + comp_prev = mtk_crtc->ddp_comp[i - 1];
> + prev = comp_prev->id;
Just
if (i > 0)
prev = mtk_crtc->ddp_comp[i - 1]->id;
else
prev = DDP_COMPONENT_ID_MAX;
> + }
> + mtk_ddp_comp_connect(comp, prev);
>
> mtk_ddp_comp_config(comp, width, height, vrefresh, bpc);
> mtk_ddp_comp_start(comp);
> @@ -292,10 +301,19 @@ static int mtk_crtc_ddp_hw_init(struct mtk_drm_crtc
> *mtk_crtc)
> for (i = 0; i < mtk_crtc->layer_nr; i++) {
> struct drm_plane *plane = &mtk_crtc->planes[i];
> struct mtk_plane_state *plane_state;
> + struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[0];
> + unsigned int comp_layer_nr = mtk_ddp_comp_layer_nr(comp);
> + unsigned int local_layer = 0;
No need to init to 0.
>
> plane_state = to_mtk_plane_state(plane->state);
> - mtk_ddp_comp_layer_config(mtk_crtc->ddp_comp[0], i,
> - plane_state);
> +
> + if (i >= comp_layer_nr) {
> + comp = mtk_crtc->ddp_comp[1];
> + local_layer = i - comp_layer_nr;
> + } else {
> + local_layer = i;
> + }
> + mtk_ddp_comp_layer_config(comp, local_layer, plane_state);
> }
>
> return 0;
> @@ -340,6 +358,8 @@ static void mtk_crtc_ddp_config(struct drm_crtc *crtc)
> struct mtk_crtc_state *state =
> to_mtk_crtc_state(mtk_crtc->base.state);
> struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[0];
> unsigned int i;
> + unsigned int comp_layer_nr = mtk_ddp_comp_layer_nr(comp);
> + unsigned int local_layer = 0;
ditto, don't init to 0.
>
> /*
> * TODO: instead of updating the registers here, we should prepare
> @@ -362,7 +382,15 @@ static void mtk_crtc_ddp_config(struct drm_crtc *crtc)
> plane_state = to_mtk_plane_state(plane->state);
>
> if (plane_state->pending.config) {
> - mtk_ddp_comp_layer_config(comp, i,
> plane_state);
> + if (i >= comp_layer_nr) {
> + comp = mtk_crtc->ddp_comp[1];
> + local_layer = i - comp_layer_nr;
> + } else {
> + local_layer = i;
> + }
> +
> + mtk_ddp_comp_layer_config(comp, local_layer,
> + plane_state);
> plane_state->pending.config = false;
> }
> }
> @@ -604,6 +632,10 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev,
> }
>
> mtk_crtc->layer_nr = mtk_ddp_comp_layer_nr(mtk_crtc->ddp_comp[0]);
> + if (mtk_crtc->ddp_comp_nr > 1 &&
> + mtk_ddp_comp_get_type(mtk_crtc->ddp_comp[1]->id) == MTK_DISP_OVL)
> + mtk_crtc->layer_nr +=
> + mtk_ddp_comp_layer_nr(mtk_crtc->ddp_comp[1]);
> mtk_crtc->planes = devm_kcalloc(dev, mtk_crtc->layer_nr,
> sizeof(struct drm_plane),
> GFP_KERNEL);
> --
> 1.8.1.1.dirty
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