From patchwork Fri Oct 23 11:29:46 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yakir Yang X-Patchwork-Id: 7484621 Return-Path: X-Original-To: patchwork-dri-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 228A69F2F7 for ; Mon, 26 Oct 2015 01:38:57 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 1021620665 for ; Mon, 26 Oct 2015 01:38:56 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 763F62065D for ; Mon, 26 Oct 2015 01:38:54 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D390A6E23E; Sun, 25 Oct 2015 18:38:52 -0700 (PDT) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from lucky1.263xmail.com (lucky1.263xmail.com [211.157.147.131]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6B8026EFFB for ; Fri, 23 Oct 2015 04:30:12 -0700 (PDT) Received: from ykk?rock-chips.com (unknown [192.168.167.131]) by lucky1.263xmail.com (Postfix) with SMTP id 2932E8821E; Fri, 23 Oct 2015 19:30:07 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 1 X-MAIL-DELIVERY: 0 X-KSVirus-check: 0 X-ABS-CHECKED: 4 X-ADDR-CHECKED: 0 Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.263.net (Postfix) with ESMTP id 9F449435; Fri, 23 Oct 2015 19:30:01 +0800 (CST) X-RL-SENDER: ykk@rock-chips.com X-FST-TO: inki.dae@samsung.com X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: ykk@rock-chips.com X-UNIQUE-TAG: <6566b674ff9dd54483eeb9e37f71fe8d> X-ATTACHMENT-NUM: 0 X-SENDER: ykk@rock-chips.com X-DNS-TYPE: 0 Received: from localhost.localdomain (unknown [58.22.7.114]) by smtp.263.net (Postfix) whith ESMTP id 29701AHRIYT; Fri, 23 Oct 2015 19:30:05 +0800 (CST) From: Yakir Yang To: Inki Dae , Andrzej Hajda , Joonyoung Shim , Seung-Woo Kim , Kyungmin Park , Jingoo Han , Thierry Reding , Krzysztof Kozlowski , Rob Herring , joe@perches.com, Heiko Stuebner , Mark Yao Subject: [PATCH v7 01/17] drm: exynos: dp: convert to drm bridge mode Date: Fri, 23 Oct 2015 19:29:46 +0800 Message-Id: <1445599802-31568-1-git-send-email-ykk@rock-chips.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1445599415-30856-1-git-send-email-ykk@rock-chips.com> References: <1445599415-30856-1-git-send-email-ykk@rock-chips.com> X-Mailman-Approved-At: Sun, 25 Oct 2015 18:38:21 -0700 Cc: dianders@chromium.org, Gustavo Padovan , linux-samsung-soc@vger.kernel.org, Russell King , linux-rockchip@lists.infradead.org, Kishon Vijay Abraham I , javier@osg.samsung.com, Kukjin Kim , robherring2@gmail.com, devicetree@vger.kernel.org, Pawel Moll , Ian Campbell , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, emil.l.velikov@gmail.com, linux-kernel@vger.kernel.org, Kumar Gala , ajaynumb@gmail.com, Andy Yan X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP In order to move exynos dp code to bridge directory, we need to convert driver drm bridge mode first. As dp driver already have a ptn3460 bridge, so we need to move ptn bridge to the next bridge of dp bridge. Tested-by: Javier Martinez Canillas Signed-off-by: Yakir Yang --- Changes in v7: None Changes in v6: - Fix the wrong code in previous series, and test on Samsung snow Chromebook successfully, here are the detail changes: =============> - if (!dp->panel && !dp->bridge) { + if (!dp->panel && !dp->ptn_bridge) { ret = exynos_dp_dt_parse_panel(dp); if (ret) =============> + encoder->bridge = bridge; bridge->driver_private = dp; bridge->encoder = encoder; bridge->funcs = &exynos_dp_bridge_funcs; ret = drm_bridge_attach(drm_dev, bridge); Changes in v5: None Changes in v4: None Changes in v3: None Changes in v2: - Keep author name list no changed (Jingoo) drivers/gpu/drm/exynos/exynos_dp_core.c | 103 ++++++++++++++++++++++++-------- drivers/gpu/drm/exynos/exynos_dp_core.h | 1 + 2 files changed, 78 insertions(+), 26 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c index 124fb9a..aedd074 100644 --- a/drivers/gpu/drm/exynos/exynos_dp_core.c +++ b/drivers/gpu/drm/exynos/exynos_dp_core.c @@ -1009,9 +1009,9 @@ static int exynos_drm_attach_lcd_bridge(struct exynos_dp_device *dp, { int ret; - encoder->bridge = dp->bridge; - dp->bridge->encoder = encoder; - ret = drm_bridge_attach(encoder->dev, dp->bridge); + encoder->bridge->next = dp->ptn_bridge; + dp->ptn_bridge->encoder = encoder; + ret = drm_bridge_attach(encoder->dev, dp->ptn_bridge); if (ret) { DRM_ERROR("Failed to attach bridge to drm\n"); return ret; @@ -1020,14 +1020,15 @@ static int exynos_drm_attach_lcd_bridge(struct exynos_dp_device *dp, return 0; } -static int exynos_dp_create_connector(struct drm_encoder *encoder) +static int exynos_dp_bridge_attach(struct drm_bridge *bridge) { - struct exynos_dp_device *dp = encoder_to_dp(encoder); + struct exynos_dp_device *dp = bridge->driver_private; + struct drm_encoder *encoder = &dp->encoder; struct drm_connector *connector = &dp->connector; int ret; /* Pre-empt DP connector creation if there's a bridge */ - if (dp->bridge) { + if (dp->ptn_bridge) { ret = exynos_drm_attach_lcd_bridge(dp, encoder); if (!ret) return 0; @@ -1052,22 +1053,9 @@ static int exynos_dp_create_connector(struct drm_encoder *encoder) return ret; } -static bool exynos_dp_mode_fixup(struct drm_encoder *encoder, - const struct drm_display_mode *mode, - struct drm_display_mode *adjusted_mode) -{ - return true; -} - -static void exynos_dp_mode_set(struct drm_encoder *encoder, - struct drm_display_mode *mode, - struct drm_display_mode *adjusted_mode) -{ -} - -static void exynos_dp_enable(struct drm_encoder *encoder) +static void exynos_dp_bridge_enable(struct drm_bridge *bridge) { - struct exynos_dp_device *dp = encoder_to_dp(encoder); + struct exynos_dp_device *dp = bridge->driver_private; struct exynos_drm_crtc *crtc = dp_to_crtc(dp); if (dp->dpms_mode == DRM_MODE_DPMS_ON) @@ -1092,9 +1080,9 @@ static void exynos_dp_enable(struct drm_encoder *encoder) dp->dpms_mode = DRM_MODE_DPMS_ON; } -static void exynos_dp_disable(struct drm_encoder *encoder) +static void exynos_dp_bridge_disable(struct drm_bridge *bridge) { - struct exynos_dp_device *dp = encoder_to_dp(encoder); + struct exynos_dp_device *dp = bridge->driver_private; struct exynos_drm_crtc *crtc = dp_to_crtc(dp); if (dp->dpms_mode != DRM_MODE_DPMS_ON) @@ -1123,6 +1111,69 @@ static void exynos_dp_disable(struct drm_encoder *encoder) dp->dpms_mode = DRM_MODE_DPMS_OFF; } +static void exynos_dp_bridge_nop(struct drm_bridge *bridge) +{ + /* do nothing */ +} + +static const struct drm_bridge_funcs exynos_dp_bridge_funcs = { + .enable = exynos_dp_bridge_enable, + .disable = exynos_dp_bridge_disable, + .pre_enable = exynos_dp_bridge_nop, + .post_disable = exynos_dp_bridge_nop, + .attach = exynos_dp_bridge_attach, +}; + +static int exynos_dp_create_connector(struct drm_encoder *encoder) +{ + struct exynos_dp_device *dp = encoder_to_dp(encoder); + struct drm_device *drm_dev = dp->drm_dev; + struct drm_bridge *bridge; + int ret; + + bridge = devm_kzalloc(drm_dev->dev, sizeof(*bridge), GFP_KERNEL); + if (!bridge) { + DRM_ERROR("failed to allocate for drm bridge\n"); + return -ENOMEM; + } + + dp->bridge = bridge; + + encoder->bridge = bridge; + bridge->driver_private = dp; + bridge->encoder = encoder; + bridge->funcs = &exynos_dp_bridge_funcs; + + ret = drm_bridge_attach(drm_dev, bridge); + if (ret) { + DRM_ERROR("failed to attach drm bridge\n"); + return -EINVAL; + } + + return 0; +} + +static bool exynos_dp_mode_fixup(struct drm_encoder *encoder, + const struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + return true; +} + +static void exynos_dp_mode_set(struct drm_encoder *encoder, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ +} + +static void exynos_dp_enable(struct drm_encoder *encoder) +{ +} + +static void exynos_dp_disable(struct drm_encoder *encoder) +{ +} + static struct drm_encoder_helper_funcs exynos_dp_encoder_helper_funcs = { .mode_fixup = exynos_dp_mode_fixup, .mode_set = exynos_dp_mode_set, @@ -1238,7 +1289,7 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data) } } - if (!dp->panel && !dp->bridge) { + if (!dp->panel && !dp->ptn_bridge) { ret = exynos_dp_dt_parse_panel(dp); if (ret) return ret; @@ -1365,9 +1416,9 @@ static int exynos_dp_probe(struct platform_device *pdev) if (endpoint) { bridge_node = of_graph_get_remote_port_parent(endpoint); if (bridge_node) { - dp->bridge = of_drm_find_bridge(bridge_node); + dp->ptn_bridge = of_drm_find_bridge(bridge_node); of_node_put(bridge_node); - if (!dp->bridge) + if (!dp->ptn_bridge) return -EPROBE_DEFER; } else return -EPROBE_DEFER; diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.h b/drivers/gpu/drm/exynos/exynos_dp_core.h index e413b6f..66eec4b 100644 --- a/drivers/gpu/drm/exynos/exynos_dp_core.h +++ b/drivers/gpu/drm/exynos/exynos_dp_core.h @@ -153,6 +153,7 @@ struct exynos_dp_device { struct drm_connector connector; struct drm_panel *panel; struct drm_bridge *bridge; + struct drm_bridge *ptn_bridge; struct clk *clock; unsigned int irq; void __iomem *reg_base;