From patchwork Wed Apr 11 01:16:08 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chandan Uddaraju X-Patchwork-Id: 10334715 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 90FC86053C for ; Wed, 11 Apr 2018 01:17:00 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 96864285E4 for ; Wed, 11 Apr 2018 01:17:00 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8B1F5285E8; Wed, 11 Apr 2018 01:17:00 +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=-5.1 required=2.0 tests=BAYES_00,DKIM_SIGNED, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,T_DKIM_INVALID 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 097E7285E5 for ; Wed, 11 Apr 2018 01:16:59 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 96C7C6E514; Wed, 11 Apr 2018 01:16:57 +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 E0BEC6E424; Wed, 11 Apr 2018 01:16:55 +0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1000) id CA7706081C; Wed, 11 Apr 2018 01:16:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1523409415; bh=j6M10ez56BMu5RZ0mgga5VWkc8dLQ0yTHjLfTDddc6M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MJRHIwp2/P3iZI5Llm96PDtU7b0hZ0Z2vmrW5CxLtbdRiIFQjKfXYSIZwhOQEZOZh YjWYR1XFW81AeQOsG1xG+h51+J/aWwYmQZ91N7dIl7aoYza27JcFp4kClgb5//eFk1 eqV+8RAlYzHy+HVDjqcU8p12pB7CUCtfvMJm4IcI= Received: from linux-display-lab-03.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: chandanu@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 5196660249; Wed, 11 Apr 2018 01:16:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1523409414; bh=j6M10ez56BMu5RZ0mgga5VWkc8dLQ0yTHjLfTDddc6M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Jb9q5Uo+4tnuV7LoOeXfh8G7+52a8wFpqXk/Zd86SuI7sdEDMFHhub+rk9VTuYCOb qib7ic39Y0Q+vRpWzDAmFfPk7Bewivy6t3rhezpN7poD7Cm8SfPD1pdoCDPd45v+Nf uLpi1qHQnp8og6dGy4REUWFPibz93JSgCKzWZLTs= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 5196660249 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=chandanu@codeaurora.org From: Chandan Uddaraju To: freedreno@lists.freedesktop.org, linux-arm-msm@vger.kernel.org Subject: [DPU PATCH 2/2] drm/msm/dsi: Use one connector for dual DSI mode Date: Tue, 10 Apr 2018 18:16:08 -0700 Message-Id: <1523409368-29750-3-git-send-email-chandanu@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1523409368-29750-1-git-send-email-chandanu@codeaurora.org> References: <1523409368-29750-1-git-send-email-chandanu@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: jeykumar@quicinc.com, dri-devel@lists.freedesktop.org, hoegsberg@google.com, Chandan Uddaraju MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Current DSI driver uses two connectors for dual DSI case even though we only have one panel. Fix this by implementing one connector/bridge for dual DSI use case. Use master DSI controllers to register one connector/bridge. Change-Id: I067b39f3b32eb3aa92d4155d4ca703ca7690645b Signed-off-by: Chandan Uddaraju --- drivers/gpu/drm/msm/dsi/dsi.c | 3 + drivers/gpu/drm/msm/dsi/dsi.h | 1 + drivers/gpu/drm/msm/dsi/dsi_manager.c | 110 ++++++++-------------------------- 3 files changed, 29 insertions(+), 85 deletions(-) diff --git a/drivers/gpu/drm/msm/dsi/dsi.c b/drivers/gpu/drm/msm/dsi/dsi.c index b744bcc..ff8164c 100644 --- a/drivers/gpu/drm/msm/dsi/dsi.c +++ b/drivers/gpu/drm/msm/dsi/dsi.c @@ -208,6 +208,9 @@ int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev, goto fail; } + if (!msm_dsi_manager_validate_current_config(msm_dsi->id)) + goto fail; + msm_dsi->encoder = encoder; msm_dsi->bridge = msm_dsi_manager_bridge_init(msm_dsi->id); diff --git a/drivers/gpu/drm/msm/dsi/dsi.h b/drivers/gpu/drm/msm/dsi/dsi.h index 4131b47..d487d94 100644 --- a/drivers/gpu/drm/msm/dsi/dsi.h +++ b/drivers/gpu/drm/msm/dsi/dsi.h @@ -100,6 +100,7 @@ struct msm_dsi { void msm_dsi_manager_attach_dsi_device(int id, u32 device_flags); int msm_dsi_manager_register(struct msm_dsi *msm_dsi); void msm_dsi_manager_unregister(struct msm_dsi *msm_dsi); +bool msm_dsi_manager_validate_current_config(u8 id); /* msm dsi */ static inline bool msm_dsi_device_connected(struct msm_dsi *msm_dsi) diff --git a/drivers/gpu/drm/msm/dsi/dsi_manager.c b/drivers/gpu/drm/msm/dsi/dsi_manager.c index 8ef1c3d..5817f59 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_manager.c +++ b/drivers/gpu/drm/msm/dsi/dsi_manager.c @@ -305,67 +305,6 @@ static void dsi_mgr_connector_destroy(struct drm_connector *connector) kfree(dsi_connector); } -static void dsi_dual_connector_fix_modes(struct drm_connector *connector) -{ - struct drm_display_mode *mode, *m; - - /* Only support left-right mode */ - list_for_each_entry_safe(mode, m, &connector->probed_modes, head) { - mode->clock >>= 1; - mode->hdisplay >>= 1; - mode->hsync_start >>= 1; - mode->hsync_end >>= 1; - mode->htotal >>= 1; - drm_mode_set_name(mode); - } -} - -static int dsi_dual_connector_tile_init( - struct drm_connector *connector, int id) -{ - struct drm_display_mode *mode; - /* Fake topology id */ - char topo_id[8] = {'M', 'S', 'M', 'D', 'U', 'D', 'S', 'I'}; - - if (connector->tile_group) { - DBG("Tile property has been initialized"); - return 0; - } - - /* Use the first mode only for now */ - mode = list_first_entry(&connector->probed_modes, - struct drm_display_mode, - head); - if (!mode) - return -EINVAL; - - connector->tile_group = drm_mode_get_tile_group( - connector->dev, topo_id); - if (!connector->tile_group) - connector->tile_group = drm_mode_create_tile_group( - connector->dev, topo_id); - if (!connector->tile_group) { - pr_err("%s: failed to create tile group\n", __func__); - return -ENOMEM; - } - - connector->has_tile = true; - connector->tile_is_single_monitor = true; - - /* mode has been fixed */ - connector->tile_h_size = mode->hdisplay; - connector->tile_v_size = mode->vdisplay; - - /* Only support left-right mode */ - connector->num_h_tile = 2; - connector->num_v_tile = 1; - - connector->tile_v_loc = 0; - connector->tile_h_loc = (id == DSI_RIGHT) ? 1 : 0; - - return 0; -} - static int dsi_mgr_connector_get_modes(struct drm_connector *connector) { int id = dsi_mgr_connector_get_id(connector); @@ -376,31 +315,15 @@ static int dsi_mgr_connector_get_modes(struct drm_connector *connector) if (!panel) return 0; - /* Since we have 2 connectors, but only 1 drm_panel in dual DSI mode, - * panel should not attach to any connector. - * Only temporarily attach panel to the current connector here, - * to let panel set mode to this connector. + /* + * In dual DSI mode, we have one connector that can be + * attached to the drm_panel. */ drm_panel_attach(panel, connector); num = drm_panel_get_modes(panel); - drm_panel_detach(panel); if (!num) return 0; - if (IS_DUAL_DSI()) { - /* report half resolution to user */ - dsi_dual_connector_fix_modes(connector); - ret = dsi_dual_connector_tile_init(connector, id); - if (ret) - return ret; - ret = drm_mode_connector_set_tile_property(connector); - if (ret) { - pr_err("%s: set tile property failed, %d\n", - __func__, ret); - return ret; - } - } - return num; } @@ -454,8 +377,8 @@ static void dsi_mgr_bridge_pre_enable(struct drm_bridge *bridge) if (ret) goto phy_en_fail; - /* Do nothing with the host if it is DSI 1 in case of dual DSI */ - if (is_dual_dsi && (DSI_1 == id)) + /* Do nothing with the host if it is slave-DSI in case of dual DSI */ + if (is_dual_dsi && (!IS_MASTER_DSI_LINK(id))) return; ret = msm_dsi_host_power_on(host, &phy_shared_timings[id]); @@ -556,11 +479,11 @@ static void dsi_mgr_bridge_post_disable(struct drm_bridge *bridge) return; /* - * Do nothing with the host if it is DSI 1 in case of dual DSI. + * Do nothing with the host if it is slave-DSI in case of dual DSI. * It is safe to call dsi_mgr_phy_disable() here because a single PHY * won't be diabled until both PHYs request disable. */ - if (is_dual_dsi && (DSI_1 == id)) + if (is_dual_dsi && (!IS_MASTER_DSI_LINK(id))) goto disable_phy; if (panel) { @@ -621,7 +544,7 @@ static void dsi_mgr_bridge_mode_set(struct drm_bridge *bridge, mode->vsync_end, mode->vtotal, mode->type, mode->flags); - if (is_dual_dsi && (DSI_1 == id)) + if (is_dual_dsi && (!IS_MASTER_DSI_LINK(id))) return; msm_dsi_host_set_display_mode(host, adjusted_mode); @@ -704,6 +627,23 @@ struct drm_connector *msm_dsi_manager_connector_init(u8 id) return connector; } +bool msm_dsi_manager_validate_current_config(u8 id) +{ + bool is_dual_dsi = IS_DUAL_DSI(); + + /* + * For dual DSI, we only have one drm panel. For this + * use case, we register only one bridge/connector. + * Skip bridge/connector initialisation if it is + * slave-DSI for dual DSI configuration. + */ + if (is_dual_dsi && (!IS_MASTER_DSI_LINK(id))) { + DBG("Skip bridge registration for slave DSI->id: %d\n", id); + return false; + } + return true; +} + /* initialize bridge */ struct drm_bridge *msm_dsi_manager_bridge_init(u8 id) {