From patchwork Tue Aug 21 12:24:09 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sravanthi Kollukuduru X-Patchwork-Id: 10571459 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0980A921 for ; Tue, 21 Aug 2018 12:24:32 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 013692A0F0 for ; Tue, 21 Aug 2018 12:24:32 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id F3B6F2A0F9; Tue, 21 Aug 2018 12:24:31 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 3D6812A0F1 for ; Tue, 21 Aug 2018 12:24:31 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D0CB889C2A; Tue, 21 Aug 2018 12:24:29 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from smtp.codeaurora.org (smtp.codeaurora.org [198.145.29.96]) by gabe.freedesktop.org (Postfix) with ESMTPS id 04D2A89C2A; Tue, 21 Aug 2018 12:24:29 +0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1000) id E577B6147F; Tue, 21 Aug 2018 12:24:28 +0000 (UTC) Received: from skolluku-linux.qualcomm.com (blr-c-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: skolluku@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 44B8D61474; Tue, 21 Aug 2018 12:24:24 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 44B8D61474 From: Sravanthi Kollukuduru To: dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org Subject: [PATCH 1/2] drm/msm/dpu: enable cursor plane on dpu Date: Tue, 21 Aug 2018 17:54:09 +0530 Message-Id: <20180821122410.17280-2-skolluku@codeaurora.org> X-Mailer: git-send-email 2.13.5 In-Reply-To: <20180821122410.17280-1-skolluku@codeaurora.org> References: <20180821122410.17280-1-skolluku@codeaurora.org> X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: sean@poorly.run, seanpaul@chromium.org, Sravanthi Kollukuduru MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Reserve DMA pipe for cursor plane and attach it to the crtc during the initialization. Signed-off-by: Sravanthi Kollukuduru Reviewed-by: Sean Paul --- drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 5 ++- drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h | 4 +- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 53 +++++++++++--------------- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 35 +++++++++++------ drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 9 +---- drivers/gpu/drm/msm/disp/dpu1/dpu_plane.h | 4 +- 6 files changed, 55 insertions(+), 55 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c index 80cbf75bc2ff..0cd9456a6c4c 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c @@ -2082,7 +2082,8 @@ static const struct drm_crtc_helper_funcs dpu_crtc_helper_funcs = { }; /* initialize crtc */ -struct drm_crtc *dpu_crtc_init(struct drm_device *dev, struct drm_plane *plane) +struct drm_crtc *dpu_crtc_init(struct drm_device *dev, struct drm_plane *plane, + struct drm_plane *cursor) { struct drm_crtc *crtc = NULL; struct dpu_crtc *dpu_crtc = NULL; @@ -2119,7 +2120,7 @@ struct drm_crtc *dpu_crtc_init(struct drm_device *dev, struct drm_plane *plane) dpu_crtc_frame_event_work); } - drm_crtc_init_with_planes(dev, crtc, plane, NULL, &dpu_crtc_funcs, + drm_crtc_init_with_planes(dev, crtc, plane, cursor, &dpu_crtc_funcs, NULL); drm_crtc_helper_add(crtc, &dpu_crtc_helper_funcs); diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h index e87109e608e9..a89679160237 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h @@ -375,9 +375,11 @@ void dpu_crtc_complete_commit(struct drm_crtc *crtc, * dpu_crtc_init - create a new crtc object * @dev: dpu device * @plane: base plane + * @cursor: cursor plane * @Return: new crtc object or error */ -struct drm_crtc *dpu_crtc_init(struct drm_device *dev, struct drm_plane *plane); +struct drm_crtc *dpu_crtc_init(struct drm_device *dev, struct drm_plane *plane, + struct drm_plane *cursor); /** * dpu_crtc_register_custom_event - api for enabling/disabling crtc event diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c index 44ee06398b1d..c04f3f3acae4 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c @@ -29,6 +29,9 @@ BIT(DPU_SSPP_TS_PREFILL) | BIT(DPU_SSPP_TS_PREFILL_REC1) |\ BIT(DPU_SSPP_CDP) | BIT(DPU_SSPP_EXCL_RECT)) +#define DMA_CURSOR_SDM845_MASK \ + (DMA_SDM845_MASK | BIT(DPU_SSPP_CURSOR)) + #define MIXER_SDM845_MASK \ (BIT(DPU_MIXER_SOURCESPLIT) | BIT(DPU_DIM_LAYER)) @@ -174,45 +177,35 @@ static const struct dpu_sspp_sub_blks sdm845_dma_sblk_1 = _DMA_SBLK("9", 2); static const struct dpu_sspp_sub_blks sdm845_dma_sblk_2 = _DMA_SBLK("10", 3); static const struct dpu_sspp_sub_blks sdm845_dma_sblk_3 = _DMA_SBLK("11", 4); -#define SSPP_VIG_BLK(_name, _id, _base, _sblk, _xinid, _clkctrl) \ - { \ - .name = _name, .id = _id, \ - .base = _base, .len = 0x1c8, \ - .features = VIG_SDM845_MASK, \ - .sblk = &_sblk, \ - .xin_id = _xinid, \ - .type = SSPP_TYPE_VIG, \ - .clk_ctrl = _clkctrl \ - } - -#define SSPP_DMA_BLK(_name, _id, _base, _sblk, _xinid, _clkctrl) \ +#define SSPP_BLK(_name, _id, _base, _features, \ + _sblk, _xinid, _type, _clkctrl) \ { \ .name = _name, .id = _id, \ .base = _base, .len = 0x1c8, \ - .features = DMA_SDM845_MASK, \ + .features = _features, \ .sblk = &_sblk, \ .xin_id = _xinid, \ - .type = SSPP_TYPE_DMA, \ + .type = _type, \ .clk_ctrl = _clkctrl \ } static struct dpu_sspp_cfg sdm845_sspp[] = { - SSPP_VIG_BLK("sspp_0", SSPP_VIG0, 0x4000, - sdm845_vig_sblk_0, 0, DPU_CLK_CTRL_VIG0), - SSPP_VIG_BLK("sspp_1", SSPP_VIG1, 0x6000, - sdm845_vig_sblk_1, 4, DPU_CLK_CTRL_VIG1), - SSPP_VIG_BLK("sspp_2", SSPP_VIG2, 0x8000, - sdm845_vig_sblk_2, 8, DPU_CLK_CTRL_VIG2), - SSPP_VIG_BLK("sspp_3", SSPP_VIG3, 0xa000, - sdm845_vig_sblk_3, 12, DPU_CLK_CTRL_VIG3), - SSPP_DMA_BLK("sspp_8", SSPP_DMA0, 0x24000, - sdm845_dma_sblk_0, 1, DPU_CLK_CTRL_DMA0), - SSPP_DMA_BLK("sspp_9", SSPP_DMA1, 0x26000, - sdm845_dma_sblk_1, 5, DPU_CLK_CTRL_DMA1), - SSPP_DMA_BLK("sspp_10", SSPP_DMA2, 0x28000, - sdm845_dma_sblk_2, 9, DPU_CLK_CTRL_CURSOR0), - SSPP_DMA_BLK("sspp_11", SSPP_DMA3, 0x2a000, - sdm845_dma_sblk_3, 13, DPU_CLK_CTRL_CURSOR1), + SSPP_BLK("sspp_0", SSPP_VIG0, 0x4000, VIG_SDM845_MASK, + sdm845_vig_sblk_0, 0, SSPP_TYPE_VIG, DPU_CLK_CTRL_VIG0), + SSPP_BLK("sspp_1", SSPP_VIG1, 0x6000, VIG_SDM845_MASK, + sdm845_vig_sblk_1, 4, SSPP_TYPE_VIG, DPU_CLK_CTRL_VIG1), + SSPP_BLK("sspp_2", SSPP_VIG2, 0x8000, VIG_SDM845_MASK, + sdm845_vig_sblk_2, 8, SSPP_TYPE_VIG, DPU_CLK_CTRL_VIG2), + SSPP_BLK("sspp_3", SSPP_VIG3, 0xa000, VIG_SDM845_MASK, + sdm845_vig_sblk_3, 12, SSPP_TYPE_VIG, DPU_CLK_CTRL_VIG3), + SSPP_BLK("sspp_8", SSPP_DMA0, 0x24000, DMA_SDM845_MASK, + sdm845_dma_sblk_0, 1, SSPP_TYPE_DMA, DPU_CLK_CTRL_DMA0), + SSPP_BLK("sspp_9", SSPP_DMA1, 0x26000, DMA_SDM845_MASK, + sdm845_dma_sblk_1, 5, SSPP_TYPE_DMA, DPU_CLK_CTRL_DMA1), + SSPP_BLK("sspp_10", SSPP_DMA2, 0x28000, DMA_CURSOR_SDM845_MASK, + sdm845_dma_sblk_2, 9, SSPP_TYPE_DMA, DPU_CLK_CTRL_CURSOR0), + SSPP_BLK("sspp_11", SSPP_DMA3, 0x2a000, DMA_CURSOR_SDM845_MASK, + sdm845_dma_sblk_3, 13, SSPP_TYPE_DMA, DPU_CLK_CTRL_CURSOR1), }; /************************************************************* diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c index 7dd6bd2d6d37..2dca6b14d602 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -531,12 +531,13 @@ static int _dpu_kms_drm_obj_init(struct dpu_kms *dpu_kms) { struct drm_device *dev; struct drm_plane *primary_planes[MAX_PLANES], *plane; + struct drm_plane *cursor_planes[MAX_PLANES] = { NULL }; struct drm_crtc *crtc; struct msm_drm_private *priv; struct dpu_mdss_cfg *catalog; - int primary_planes_idx = 0, i, ret; + int primary_planes_idx = 0, cursor_planes_idx = 0, i, ret; int max_crtc_count; if (!dpu_kms || !dpu_kms->dev || !dpu_kms->dev->dev) { @@ -556,16 +557,24 @@ static int _dpu_kms_drm_obj_init(struct dpu_kms *dpu_kms) max_crtc_count = min(catalog->mixer_count, priv->num_encoders); - /* Create the planes */ + /* Create the planes, keeping track of one primary/cursor per crtc */ for (i = 0; i < catalog->sspp_count; i++) { - bool primary = true; - - if (catalog->sspp[i].features & BIT(DPU_SSPP_CURSOR) - || primary_planes_idx >= max_crtc_count) - primary = false; - - plane = dpu_plane_init(dev, catalog->sspp[i].id, primary, - (1UL << max_crtc_count) - 1, 0); + enum drm_plane_type type; + + if ((catalog->sspp[i].features & BIT(DPU_SSPP_CURSOR)) + && cursor_planes_idx < max_crtc_count) + type = DRM_PLANE_TYPE_CURSOR; + else if (primary_planes_idx < max_crtc_count) + type = DRM_PLANE_TYPE_PRIMARY; + else + type = DRM_PLANE_TYPE_OVERLAY; + + DPU_DEBUG("Create plane type %d with features %lx (cur %lx)\n", + type, catalog->sspp[i].features, + catalog->sspp[i].features & BIT(DPU_SSPP_CURSOR)); + + plane = dpu_plane_init(dev, catalog->sspp[i].id, type, + (1UL << max_crtc_count) - 1, 0); if (IS_ERR(plane)) { DPU_ERROR("dpu_plane_init failed\n"); ret = PTR_ERR(plane); @@ -573,7 +582,9 @@ static int _dpu_kms_drm_obj_init(struct dpu_kms *dpu_kms) } priv->planes[priv->num_planes++] = plane; - if (primary) + if (type == DRM_PLANE_TYPE_CURSOR) + cursor_planes[cursor_planes_idx++] = plane; + else if (type == DRM_PLANE_TYPE_PRIMARY) primary_planes[primary_planes_idx++] = plane; } @@ -581,7 +592,7 @@ static int _dpu_kms_drm_obj_init(struct dpu_kms *dpu_kms) /* Create one CRTC per encoder */ for (i = 0; i < max_crtc_count; i++) { - crtc = dpu_crtc_init(dev, primary_planes[i]); + crtc = dpu_crtc_init(dev, primary_planes[i], cursor_planes[i]); if (IS_ERR(crtc)) { ret = PTR_ERR(crtc); goto fail; diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c index b640e39ebaca..efdf9b200dd9 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c @@ -1827,7 +1827,7 @@ bool is_dpu_plane_virtual(struct drm_plane *plane) /* initialize plane */ struct drm_plane *dpu_plane_init(struct drm_device *dev, - uint32_t pipe, bool primary_plane, + uint32_t pipe, enum drm_plane_type type, unsigned long possible_crtcs, u32 master_plane_id) { struct drm_plane *plane = NULL, *master_plane = NULL; @@ -1835,7 +1835,6 @@ struct drm_plane *dpu_plane_init(struct drm_device *dev, struct dpu_plane *pdpu; struct msm_drm_private *priv; struct dpu_kms *kms; - enum drm_plane_type type; int zpos_max = DPU_ZPOS_MAX; int ret = -EINVAL; @@ -1916,12 +1915,6 @@ struct drm_plane *dpu_plane_init(struct drm_device *dev, goto clean_sspp; } - if (pdpu->features & BIT(DPU_SSPP_CURSOR)) - type = DRM_PLANE_TYPE_CURSOR; - else if (primary_plane) - type = DRM_PLANE_TYPE_PRIMARY; - else - type = DRM_PLANE_TYPE_OVERLAY; ret = drm_universal_plane_init(dev, plane, 0xff, &dpu_plane_funcs, pdpu->formats, pdpu->nformats, NULL, type, NULL); diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.h index f6fe6ddc7a3a..7fed0b627708 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.h @@ -122,7 +122,7 @@ void dpu_plane_set_error(struct drm_plane *plane, bool error); * dpu_plane_init - create new dpu plane for the given pipe * @dev: Pointer to DRM device * @pipe: dpu hardware pipe identifier - * @primary_plane: true if this pipe is primary plane for crtc + * @type: Plane type - PRIMARY/OVERLAY/CURSOR * @possible_crtcs: bitmask of crtc that can be attached to the given pipe * @master_plane_id: primary plane id of a multirect pipe. 0 value passed for * a regular plane initialization. A non-zero primary plane @@ -130,7 +130,7 @@ void dpu_plane_set_error(struct drm_plane *plane, bool error); * */ struct drm_plane *dpu_plane_init(struct drm_device *dev, - uint32_t pipe, bool primary_plane, + uint32_t pipe, enum drm_plane_type type, unsigned long possible_crtcs, u32 master_plane_id); /** From patchwork Tue Aug 21 12:24:10 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sravanthi Kollukuduru X-Patchwork-Id: 10571463 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E4D621390 for ; Tue, 21 Aug 2018 12:24:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DD0552A0B0 for ; Tue, 21 Aug 2018 12:24:36 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DB8AD2A0F7; Tue, 21 Aug 2018 12:24:36 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 9C7E02A0F5 for ; Tue, 21 Aug 2018 12:24:36 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id EEBA46E2FF; Tue, 21 Aug 2018 12:24:34 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from smtp.codeaurora.org (smtp.codeaurora.org [198.145.29.96]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7905F6E2BF; Tue, 21 Aug 2018 12:24:33 +0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 5994C61481; Tue, 21 Aug 2018 12:24:32 +0000 (UTC) Received: from skolluku-linux.qualcomm.com (blr-c-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: skolluku@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 9405661406; Tue, 21 Aug 2018 12:24:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 9405661406 From: Sravanthi Kollukuduru To: dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org Subject: [PATCH 2/2] drm/msm/dpu: fix for cursor blend issue Date: Tue, 21 Aug 2018 17:54:10 +0530 Message-Id: <20180821122410.17280-3-skolluku@codeaurora.org> X-Mailer: git-send-email 2.13.5 In-Reply-To: <20180821122410.17280-1-skolluku@codeaurora.org> References: <20180821122410.17280-1-skolluku@codeaurora.org> X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: sean@poorly.run, seanpaul@chromium.org, Sravanthi Kollukuduru MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP The current driver has the opaque blend mode set as the default causing the black box effect around the cursor. The fix enables choosing a different blend mode for alpha enabled formats. Signed-off-by: Sravanthi Kollukuduru --- drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 26 +++++++++++++++++++++----- 1 file changed, 21 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c index 0cd9456a6c4c..fc6200c74614 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c @@ -297,14 +297,29 @@ static void dpu_crtc_destroy(struct drm_crtc *crtc) } static void _dpu_crtc_setup_blend_cfg(struct dpu_crtc_mixer *mixer, - struct dpu_plane_state *pstate) + struct dpu_plane_state *pstate, struct dpu_format *format) { struct dpu_hw_mixer *lm = mixer->hw_lm; + uint32_t blend_op; /* default to opaque blending */ - lm->ops.setup_blend_config(lm, pstate->stage, 0XFF, 0, - DPU_BLEND_FG_ALPHA_FG_CONST | - DPU_BLEND_BG_ALPHA_BG_CONST); + blend_op = DPU_BLEND_FG_ALPHA_FG_CONST | + DPU_BLEND_BG_ALPHA_BG_CONST; + + if (format->alpha_enable) { + /* coverage blending */ + blend_op = DPU_BLEND_FG_ALPHA_FG_PIXEL | + DPU_BLEND_BG_ALPHA_FG_PIXEL | + DPU_BLEND_BG_INV_ALPHA; + } + + lm->ops.setup_blend_config(lm, pstate->stage, + 0xFF, 0, blend_op); + + DPU_DEBUG( + "format:%4.4s, alpha_en(%u) blend_op:0x%x\n", + (char *) &format->base.pixel_format, + format->alpha_enable, blend_op); } static void _dpu_crtc_program_lm_output_roi(struct drm_crtc *crtc) @@ -401,7 +416,8 @@ static void _dpu_crtc_blend_setup_mixer(struct drm_crtc *crtc, /* blend config update */ for (lm_idx = 0; lm_idx < dpu_crtc->num_mixers; lm_idx++) { - _dpu_crtc_setup_blend_cfg(mixer + lm_idx, pstate); + _dpu_crtc_setup_blend_cfg(mixer + lm_idx, + pstate, format); mixer[lm_idx].flush_mask |= flush_mask;