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Wed, 9 Oct 2019 17:29:39 +0800 Message-ID: <1570613382.7713.9.camel@mtksdaap41> Subject: Re: [PATCH v5, 22/32] drm/mediatek: add ovl0/ovl_2l0 usecase From: CK Hu To: Date: Wed, 9 Oct 2019 17:29:42 +0800 In-Reply-To: <1567090254-15566-23-git-send-email-yongqiang.niu@mediatek.com> References: <1567090254-15566-1-git-send-email-yongqiang.niu@mediatek.com> <1567090254-15566-23-git-send-email-yongqiang.niu@mediatek.com> X-Mailer: Evolution 3.10.4-0ubuntu2 MIME-Version: 1.0 X-TM-SNTS-SMTP: 77BACC5CC9D874289777AB391FF8CC187BFEDC531C1268C70D3E6665E44BA75F2000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191009_025122_289241_CD5895E6 X-CRM114-Status: GOOD ( 18.88 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Philipp Zabel , David Airlie , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Rob Herring , linux-mediatek@lists.infradead.org, Daniel Vetter , Matthias Brugger , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi, Yongqiang: On Thu, 2019-08-29 at 22:50 +0800, yongqiang.niu@mediatek.com wrote: > From: Yongqiang Niu > > This patch add ovl0/ovl_2l0 usecase > in ovl->ovl_2l0 direct link usecase: > 1. the crtc support layer number will 4+2 > 2. ovl_2l0 background color input select ovl0 when crtc init > and disable it when crtc finish > 3. config ovl_2l0 layer, if crtc config layer number is > bigger than ovl0 support layers(max is 4) > Applied to mediatek-drm-next-5.5 [1] with some modification by my comment, thanks. [1] https://github.com/ckhu-mediatek/linux.git-tags/commits/mediatek-drm-next-5.5 Regards, CK > Signed-off-by: Yongqiang Niu > --- > drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 38 +++++++++++++++++++++++++++++++-- > 1 file changed, 36 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c > index c63ff2b..b55970a 100644 > --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c > +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c > @@ -270,6 +270,15 @@ 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; > + > + if (i > 0) > + prev = mtk_crtc->ddp_comp[i - 1]->id; > + else > + prev = DDP_COMPONENT_ID_MAX; > + > + if (prev == DDP_COMPONENT_OVL0) > + mtk_ddp_comp_bgclr_in_on(comp); > > mtk_ddp_comp_config(comp, width, height, vrefresh, bpc); > mtk_ddp_comp_start(comp); > @@ -279,9 +288,18 @@ 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; > > plane_state = to_mtk_plane_state(plane->state); > - mtk_ddp_comp_layer_config(mtk_crtc->ddp_comp[0], i, > + > + 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); > } > > @@ -307,6 +325,7 @@ static void mtk_crtc_ddp_hw_fini(struct mtk_drm_crtc *mtk_crtc) > mtk_crtc->ddp_comp[i]->id); > mtk_disp_mutex_disable(mtk_crtc->mutex); > for (i = 0; i < mtk_crtc->ddp_comp_nr - 1; i++) { > + mtk_ddp_comp_bgclr_in_off(mtk_crtc->ddp_comp[i]); > mtk_ddp_remove_comp_from_path(mtk_crtc->config_regs, > mtk_crtc->mmsys_reg_data, > mtk_crtc->ddp_comp[i]->id, > @@ -327,6 +346,8 @@ 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; > > /* > * TODO: instead of updating the registers here, we should prepare > @@ -349,7 +370,14 @@ 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; > } > } > @@ -572,6 +600,12 @@ 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) { > + struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[1]; > + > + 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); _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel