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Lin" , Singo Chang , Nancy Lin , Shawn Sung , , , , , , Nathan Lu Subject: [PATCH v6 1/2] drm/mediatek: Add ability to support dynamic connector selection Date: Mon, 10 Jul 2023 10:52:46 +0800 Message-ID: <20230710025247.20365-2-jason-jh.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20230710025247.20365-1-jason-jh.lin@mediatek.com> References: <20230710025247.20365-1-jason-jh.lin@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230709_203914_759035_6870DFAF X-CRM114-Status: GOOD ( 24.40 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org 1. Move output drm connector from each ddp_path array to connector array. 2. Add dynamic select available connector flow in crtc create and enable. Signed-off-by: Nancy Lin Signed-off-by: Nathan Lu Signed-off-by: Jason-JH.Lin --- drivers/gpu/drm/mediatek/mtk_disp_drv.h | 1 + drivers/gpu/drm/mediatek/mtk_dpi.c | 9 +++ drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 84 ++++++++++++++++++++- drivers/gpu/drm/mediatek/mtk_drm_crtc.h | 5 +- drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 26 +++++++ drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 8 ++ drivers/gpu/drm/mediatek/mtk_drm_drv.c | 37 +++++++-- drivers/gpu/drm/mediatek/mtk_drm_drv.h | 7 ++ 8 files changed, 168 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h index 2254038519e1..5f07037670e9 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h @@ -44,6 +44,7 @@ void mtk_dither_set_common(void __iomem *regs, struct cmdq_client_reg *cmdq_reg, void mtk_dpi_start(struct device *dev); void mtk_dpi_stop(struct device *dev); +unsigned int mtk_dpi_encoder_index(struct device *dev); void mtk_dsi_ddp_start(struct device *dev); void mtk_dsi_ddp_stop(struct device *dev); diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c index 948a53f1f4b3..e58783a9d92c 100644 --- a/drivers/gpu/drm/mediatek/mtk_dpi.c +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c @@ -782,6 +782,15 @@ void mtk_dpi_stop(struct device *dev) mtk_dpi_power_off(dpi); } +unsigned int mtk_dpi_encoder_index(struct device *dev) +{ + struct mtk_dpi *dpi = dev_get_drvdata(dev); + unsigned int encoder_index = drm_encoder_index(&dpi->encoder); + + dev_dbg(dev, "encoder index:%d", encoder_index); + return encoder_index; +} + static int mtk_dpi_bind(struct device *dev, struct device *master, void *data) { struct mtk_dpi *dpi = dev_get_drvdata(dev); diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c index d40142842f85..f0ce0e6d0241 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c @@ -60,8 +60,11 @@ struct mtk_drm_crtc { struct device *mmsys_dev; struct device *dma_dev; struct mtk_mutex *mutex; + unsigned int ddp_comp_nr_ori; unsigned int ddp_comp_nr; struct mtk_ddp_comp **ddp_comp; + unsigned int num_conn_routes; + const struct mtk_drm_route *conn_routes; /* lock for display hardware access */ struct mutex hw_lock; @@ -649,6 +652,65 @@ static void mtk_drm_crtc_disable_vblank(struct drm_crtc *crtc) mtk_ddp_comp_disable_vblank(comp); } +static int mtk_drm_crtc_update_output(struct drm_crtc *crtc, + struct drm_atomic_state *state) +{ + const struct mtk_drm_route *conn_routes; + int crtc_index = drm_crtc_index(crtc); + int i; + struct device *dev; + struct device_node *node; + struct drm_crtc_state *crtc_state = state->crtcs[crtc_index].new_state; + struct mtk_ddp_comp *comp; + struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc); + struct mtk_drm_private *priv = crtc->dev->dev_private; + unsigned int comp_id; + unsigned int encoder_mask = crtc_state->encoder_mask; + unsigned int route_index = 0; + + if (!mtk_crtc->num_conn_routes) + return 0; + + priv = priv->all_drm_private[crtc_index]; + dev = priv->dev; + + dev_dbg(dev, "connector change:%d, encoder mask0x%x for crtc%d", + crtc_state->connectors_changed, encoder_mask, crtc_index); + + if (!crtc_state->connectors_changed) + return 0; + + conn_routes = mtk_crtc->conn_routes; + if (conn_routes) { + for (i = 0; i < mtk_crtc->num_conn_routes; i++) { + comp_id = conn_routes[i].route_ddp; + if (priv->comp_node[comp_id]) { + if (encoder_mask & BIT(priv->ddp_comp[comp_id].encoder_index)) { + route_index = i; + break; + } + } + } + + comp_id = conn_routes[route_index].route_ddp; + node = priv->comp_node[comp_id]; + comp = &priv->ddp_comp[comp_id]; + if (!comp) { + dev_err(dev, "Component %pOF not initialized\n", node); + return -ENODEV; + } + + mtk_crtc->ddp_comp[mtk_crtc->ddp_comp_nr_ori] = comp; + dev_dbg(dev, "Add comp_id: %d at path index %d\n", + comp->id, mtk_crtc->ddp_comp_nr_ori); + + mtk_crtc->ddp_comp_nr = mtk_crtc->ddp_comp_nr_ori + 1; + dev_dbg(dev, "Update total comp num:%d", mtk_crtc->ddp_comp_nr); + } + + return 0; +} + int mtk_drm_crtc_plane_check(struct drm_crtc *crtc, struct drm_plane *plane, struct mtk_plane_state *state) { @@ -681,6 +743,12 @@ static void mtk_drm_crtc_atomic_enable(struct drm_crtc *crtc, DRM_DEBUG_DRIVER("%s %d\n", __func__, crtc->base.id); + ret = mtk_drm_crtc_update_output(crtc, state); + if (ret < 0) { + DRM_DEV_ERROR(comp->dev, "Failed to update crtc output: %d\n", ret); + return; + } + ret = pm_runtime_resume_and_get(comp->dev); if (ret < 0) { DRM_DEV_ERROR(comp->dev, "Failed to enable power domain: %d\n", ret); @@ -886,7 +954,8 @@ struct device *mtk_drm_crtc_dma_dev_get(struct drm_crtc *crtc) int mtk_drm_crtc_create(struct drm_device *drm_dev, const unsigned int *path, unsigned int path_len, - int priv_data_index) + int priv_data_index, const struct mtk_drm_route *conn_routes, + unsigned int num_conn_routes) { struct mtk_drm_private *priv = drm_dev->dev_private; struct device *dev = drm_dev->dev; @@ -937,6 +1006,19 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev, mtk_crtc->mmsys_dev = priv->mmsys_dev; mtk_crtc->ddp_comp_nr = path_len; + mtk_crtc->ddp_comp_nr_ori = path_len; + if (conn_routes) { + unsigned int comp_id; + + for (i = 0; i < num_conn_routes; i++) { + comp_id = conn_routes[i].route_ddp; + mtk_ddp_comp_encoder_index_set(&priv->ddp_comp[comp_id]); + } + + mtk_crtc->num_conn_routes = num_conn_routes; + mtk_crtc->conn_routes = conn_routes; + mtk_crtc->ddp_comp_nr++; + } mtk_crtc->ddp_comp = devm_kmalloc_array(dev, mtk_crtc->ddp_comp_nr, sizeof(*mtk_crtc->ddp_comp), GFP_KERNEL); diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h index 3e9046993d09..3c224595fa71 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h @@ -8,6 +8,7 @@ #include #include "mtk_drm_ddp_comp.h" +#include "mtk_drm_drv.h" #include "mtk_drm_plane.h" #define MTK_LUT_SIZE 512 @@ -18,7 +19,9 @@ void mtk_drm_crtc_commit(struct drm_crtc *crtc); int mtk_drm_crtc_create(struct drm_device *drm_dev, const unsigned int *path, unsigned int path_len, - int priv_data_index); + int priv_data_index, + const struct mtk_drm_route *conn_routes, + unsigned int num_conn_routes); int mtk_drm_crtc_plane_check(struct drm_crtc *crtc, struct drm_plane *plane, struct mtk_plane_state *state); void mtk_drm_crtc_async_update(struct drm_crtc *crtc, struct drm_plane *plane, diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c index f114da4d36a9..bc7b0a0c20db 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c @@ -304,6 +304,7 @@ static const struct mtk_ddp_comp_funcs ddp_dither = { static const struct mtk_ddp_comp_funcs ddp_dpi = { .start = mtk_dpi_start, .stop = mtk_dpi_stop, + .encoder_index = mtk_dpi_encoder_index, }; static const struct mtk_ddp_comp_funcs ddp_dsc = { @@ -507,6 +508,25 @@ static bool mtk_drm_find_comp_in_ddp(struct device *dev, return false; } +static int mtk_drm_find_comp_in_ddp_conn_path(struct device *dev, + const struct mtk_drm_route *routes, + unsigned int routes_num, + struct mtk_ddp_comp *ddp_comp) +{ + unsigned int i; + + if (!routes) + return 0; + + for (i = 0; i < routes_num; i++) + if (dev == ddp_comp[routes[i].route_ddp].dev) + return BIT(routes[i].crtc_id); + + DRM_INFO("Failed to find comp in ddp connector table\n"); + + return 0; +} + int mtk_ddp_comp_get_id(struct device_node *node, enum mtk_ddp_comp_type comp_type) { @@ -538,6 +558,12 @@ unsigned int mtk_drm_find_possible_crtc_by_comp(struct drm_device *drm, private->data->third_len, private->ddp_comp)) ret = BIT(2); else + ret = mtk_drm_find_comp_in_ddp_conn_path(dev, + private->data->conn_routes, + private->data->num_conn_routes, + private->ddp_comp); + + if (ret == 0) DRM_INFO("Failed to find comp in ddp table\n"); return ret; diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h index febcaeef16a1..8428baca70f4 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h @@ -80,6 +80,7 @@ struct mtk_ddp_comp_funcs { void (*disconnect)(struct device *dev, struct device *mmsys_dev, unsigned int next); void (*add)(struct device *dev, struct mtk_mutex *mutex); void (*remove)(struct device *dev, struct mtk_mutex *mutex); + unsigned int (*encoder_index)(struct device *dev); }; struct mtk_ddp_comp { @@ -87,6 +88,7 @@ struct mtk_ddp_comp { int irq; unsigned int id; const struct mtk_ddp_comp_funcs *funcs; + unsigned int encoder_index; }; static inline int mtk_ddp_comp_clk_enable(struct mtk_ddp_comp *comp) @@ -275,6 +277,12 @@ static inline bool mtk_ddp_comp_disconnect(struct mtk_ddp_comp *comp, struct dev return false; } +static inline void mtk_ddp_comp_encoder_index_set(struct mtk_ddp_comp *comp) +{ + if (comp->funcs && comp->funcs->encoder_index) + comp->encoder_index = comp->funcs->encoder_index(comp->dev); +} + int mtk_ddp_comp_get_id(struct device_node *node, enum mtk_ddp_comp_type comp_type); unsigned int mtk_drm_find_possible_crtc_by_comp(struct drm_device *drm, diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c index 6dcb4ba2466c..ecd113f9908c 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c @@ -185,7 +185,10 @@ static const unsigned int mt8188_mtk_ddp_main[] = { DDP_COMPONENT_GAMMA, DDP_COMPONENT_POSTMASK0, DDP_COMPONENT_DITHER0, - DDP_COMPONENT_DP_INTF0, +}; + +static const struct mtk_drm_route mt8188_mtk_ddp_main_routes[] = { + {0, DDP_COMPONENT_DP_INTF0}, }; static const unsigned int mt8192_mtk_ddp_main[] = { @@ -287,6 +290,9 @@ static const struct mtk_mmsys_driver_data mt8186_mmsys_driver_data = { static const struct mtk_mmsys_driver_data mt8188_vdosys0_driver_data = { .main_path = mt8188_mtk_ddp_main, .main_len = ARRAY_SIZE(mt8188_mtk_ddp_main), + .conn_routes = mt8188_mtk_ddp_main_routes, + .num_conn_routes = ARRAY_SIZE(mt8188_mtk_ddp_main_routes), + .mmsys_dev_num = 1, }; static const struct mtk_mmsys_driver_data mt8192_mmsys_driver_data = { @@ -350,6 +356,7 @@ static bool mtk_drm_get_all_drm_priv(struct device *dev) { struct mtk_drm_private *drm_priv = dev_get_drvdata(dev); struct mtk_drm_private *all_drm_priv[MAX_CRTC]; + struct mtk_drm_private *temp_drm_priv; struct device_node *phandle = dev->parent->of_node; const struct of_device_id *of_id; struct device_node *node; @@ -372,9 +379,18 @@ static bool mtk_drm_get_all_drm_priv(struct device *dev) if (!drm_dev || !dev_get_drvdata(drm_dev)) continue; - all_drm_priv[cnt] = dev_get_drvdata(drm_dev); - if (all_drm_priv[cnt] && all_drm_priv[cnt]->mtk_drm_bound) - cnt++; + temp_drm_priv = dev_get_drvdata(drm_dev); + if (temp_drm_priv) { + if (temp_drm_priv->mtk_drm_bound) + cnt++; + + if (temp_drm_priv->data->main_len) + all_drm_priv[0] = temp_drm_priv; + else if (temp_drm_priv->data->ext_len) + all_drm_priv[1] = temp_drm_priv; + else if (temp_drm_priv->data->third_len) + all_drm_priv[2] = temp_drm_priv; + } } if (drm_priv->data->mmsys_dev_num == cnt) { @@ -408,6 +424,11 @@ static bool mtk_drm_find_mmsys_comp(struct mtk_drm_private *private, int comp_id if (drv_data->third_path[i] == comp_id) return true; + if (drv_data->num_conn_routes) + for (i = 0; i < drv_data->num_conn_routes; i++) + if (drv_data->conn_routes[i].route_ddp == comp_id) + return true; + return false; } @@ -466,21 +487,23 @@ static int mtk_drm_kms_init(struct drm_device *drm) if (i == 0 && priv_n->data->main_len) { ret = mtk_drm_crtc_create(drm, priv_n->data->main_path, - priv_n->data->main_len, j); + priv_n->data->main_len, j, + priv_n->data->conn_routes, + priv_n->data->num_conn_routes); if (ret) goto err_component_unbind; continue; } else if (i == 1 && priv_n->data->ext_len) { ret = mtk_drm_crtc_create(drm, priv_n->data->ext_path, - priv_n->data->ext_len, j); + priv_n->data->ext_len, j, NULL, 0); if (ret) goto err_component_unbind; continue; } else if (i == 2 && priv_n->data->third_len) { ret = mtk_drm_crtc_create(drm, priv_n->data->third_path, - priv_n->data->third_len, j); + priv_n->data->third_len, j, NULL, 0); if (ret) goto err_component_unbind; diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.h b/drivers/gpu/drm/mediatek/mtk_drm_drv.h index eb2fd45941f0..39697a591046 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h @@ -22,6 +22,11 @@ struct drm_fb_helper; struct drm_property; struct regmap; +struct mtk_drm_route { + const unsigned int crtc_id; + const unsigned int route_ddp; +}; + struct mtk_mmsys_driver_data { const unsigned int *main_path; unsigned int main_len; @@ -29,6 +34,8 @@ struct mtk_mmsys_driver_data { unsigned int ext_len; const unsigned int *third_path; unsigned int third_len; + const struct mtk_drm_route *conn_routes; + unsigned int num_conn_routes; bool shadow_register; unsigned int mmsys_id; From patchwork Mon Jul 10 02:52:47 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?SmFzb24tSkggTGluICjmnpfnnb/npaUp?= X-Patchwork-Id: 13306205 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 75088EB64DC for ; Mon, 10 Jul 2023 03:39:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; 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Sun, 09 Jul 2023 20:39:09 -0700 Received: from mtkmbs13n2.mediatek.inc (172.21.101.108) by MTKMBS14N1.mediatek.inc (172.21.101.75) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Mon, 10 Jul 2023 11:39:07 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Mon, 10 Jul 2023 11:39:07 +0800 From: Jason-JH.Lin To: Chun-Kuang Hu , AngeloGioacchino Del Regno , Alexandre Mergnat CC: Matthias Brugger , Jason-ch Chen , Johnson Wang , "Jason-JH . Lin" , Singo Chang , Nancy Lin , Shawn Sung , , , , , , Nathan Lu Subject: [PATCH v6 2/2] drm/mediatek: Add DSI support for mt8188 vdosys0 Date: Mon, 10 Jul 2023 10:52:47 +0800 Message-ID: <20230710025247.20365-3-jason-jh.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20230710025247.20365-1-jason-jh.lin@mediatek.com> References: <20230710025247.20365-1-jason-jh.lin@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230709_203914_757249_ECCB550C X-CRM114-Status: GOOD ( 11.88 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Add DSI as main display output for mt8188 vdosys0. Signed-off-by: Nathan Lu Signed-off-by: Jason-JH.Lin Reviewed-by: Matthias Brugger --- drivers/gpu/drm/mediatek/mtk_disp_drv.h | 1 + drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 1 + drivers/gpu/drm/mediatek/mtk_drm_drv.c | 1 + drivers/gpu/drm/mediatek/mtk_dsi.c | 9 +++++++++ 4 files changed, 12 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h index 5f07037670e9..fdaa21b6a9da 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h @@ -48,6 +48,7 @@ unsigned int mtk_dpi_encoder_index(struct device *dev); void mtk_dsi_ddp_start(struct device *dev); void mtk_dsi_ddp_stop(struct device *dev); +unsigned int mtk_dsi_encoder_index(struct device *dev); int mtk_gamma_clk_enable(struct device *dev); void mtk_gamma_clk_disable(struct device *dev); diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c index bc7b0a0c20db..e6a7a0b9de6c 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c @@ -318,6 +318,7 @@ static const struct mtk_ddp_comp_funcs ddp_dsc = { static const struct mtk_ddp_comp_funcs ddp_dsi = { .start = mtk_dsi_ddp_start, .stop = mtk_dsi_ddp_stop, + .encoder_index = mtk_dsi_encoder_index, }; static const struct mtk_ddp_comp_funcs ddp_gamma = { diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c index ecd113f9908c..9b7ca8d35f71 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c @@ -189,6 +189,7 @@ static const unsigned int mt8188_mtk_ddp_main[] = { static const struct mtk_drm_route mt8188_mtk_ddp_main_routes[] = { {0, DDP_COMPONENT_DP_INTF0}, + {0, DDP_COMPONENT_DSI0}, }; static const unsigned int mt8192_mtk_ddp_main[] = { diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c index 7d5250351193..62d5362916a5 100644 --- a/drivers/gpu/drm/mediatek/mtk_dsi.c +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c @@ -865,6 +865,15 @@ static int mtk_dsi_encoder_init(struct drm_device *drm, struct mtk_dsi *dsi) return ret; } +unsigned int mtk_dsi_encoder_index(struct device *dev) +{ + struct mtk_dsi *dsi = dev_get_drvdata(dev); + unsigned int encoder_index = drm_encoder_index(&dsi->encoder); + + dev_dbg(dev, "encoder index:%d", encoder_index); + return encoder_index; +} + static int mtk_dsi_bind(struct device *dev, struct device *master, void *data) { int ret;