From patchwork Thu Aug 24 23:56:36 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 716844 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id F157CEE49AB for ; Thu, 24 Aug 2023 23:57:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239518AbjHXX5O (ORCPT ); Thu, 24 Aug 2023 19:57:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45400 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238786AbjHXX4o (ORCPT ); Thu, 24 Aug 2023 19:56:44 -0400 Received: from mail-lf1-x12f.google.com (mail-lf1-x12f.google.com [IPv6:2a00:1450:4864:20::12f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 994E819BF for ; Thu, 24 Aug 2023 16:56:41 -0700 (PDT) Received: by mail-lf1-x12f.google.com with SMTP id 2adb3069b0e04-500a398cda5so542874e87.0 for ; Thu, 24 Aug 2023 16:56:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1692921400; x=1693526200; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=tgQ26SpGxCjul3/ucufUtGqHh0AJSvMRyDnDlLgEQCY=; b=ZiyVPwQGf8KeFARYnc8+ZXRz6KGJnBBdOjTL1zKAap3wzFDAyVfVHSmEVYNfke5wkb MY2j+gjtI4zOnDaBvBDE234bbOk3qZLUi4X5McBT3wKple4nLaeOezx8U6zjU7IGs3ps 9TG7ni5OhdmN3Vc9ILO5s6bswKPlSFwTCAbz0jlMfmMmQERAanfKKSQ6mIOUl+kXNwJM ykr7HeDeG2sCRbHVEr7v0x/jlg9mdSZh2tcdd4x+uecredaZ4K1uwzc/iVxgrm4fr00L vZ4qohBxzSruCNFA+GtOKXxDzD0Hu9KLSckrjZsb8Gjj3x7kta0J1kw6CS6aE+7bP/mZ +SVg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692921400; x=1693526200; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=tgQ26SpGxCjul3/ucufUtGqHh0AJSvMRyDnDlLgEQCY=; b=iEG4rYTiWG+g2oN/9wq+n/NssK64RvitcpSzqmgrkL7/0xRzCvciP0zAnG4dilJ2AU vq80kLuZxz0sb7CLw1ynpggmR37FvDrG5cBDnyy7fbv4PSWQEfc30kZpKEcCWarjJf6l YTD3JKEsjkbjTsSR7DP/y/goZLlhiwc43U08HFxCWMeRNBX52emQpNo8w17sm5gbIwxi E9ulRNuBMNLMVN/ejcPuMACYUnifpUcg/usRnM6MNCMZKsd2cSSBnVtWgui/BvQloxAN +7n5h1C/qYg7mThf7arn9EMp0NbJ1WJokZUNpZ7+QhgLi9NlnMfJsMuFA6AlaCAKtfvv VRBw== X-Gm-Message-State: AOJu0YxKKDexqabImAhzCGTkt2k88kbIGxmwEUdH5i66mIjtVeCi1dZr Nm1hzAMTJHB8c16AjEC92GZh2w== X-Google-Smtp-Source: AGHT+IFwjAV10xg2ICIv+hpg687nHoaQFLWWRdI9p6K0pKXY0dRKyLzgeGtsRUJrMKT5YgwZ1BtpSQ== X-Received: by 2002:a05:6512:2524:b0:4f8:766f:8dc3 with SMTP id be36-20020a056512252400b004f8766f8dc3mr12708265lfb.32.1692921399883; Thu, 24 Aug 2023 16:56:39 -0700 (PDT) Received: from umbar.unikie.fi ([192.130.178.91]) by smtp.gmail.com with ESMTPSA id j15-20020ac2454f000000b004fe5688b5dcsm57900lfm.150.2023.08.24.16.56.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Aug 2023 16:56:39 -0700 (PDT) From: Dmitry Baryshkov To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , Andy Gross , Bjorn Andersson , Konrad Dybcio , Heikki Krogerus , Greg Kroah-Hartman Cc: Andrzej Hajda , Neil Armstrong , Laurent Pinchart , Simon Ser , Janne Grunau , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, intel-gfx@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, linux-usb@vger.kernel.org Subject: [PATCH v7 3/3] drm/bridge_connector: implement oob_hotplug_event Date: Fri, 25 Aug 2023 02:56:36 +0300 Message-Id: <20230824235636.1436665-4-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230824235636.1436665-1-dmitry.baryshkov@linaro.org> References: <20230824235636.1436665-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Implement the oob_hotplug_event() callback. Translate it to the HPD notification sent to the HPD bridge in the chain. Reviewed-by: Janne Grunau Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/drm_bridge_connector.c | 29 +++++++++++++++++++++++--- 1 file changed, 26 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/drm_bridge_connector.c b/drivers/gpu/drm/drm_bridge_connector.c index 10b52224db37..3aa129b3f8e9 100644 --- a/drivers/gpu/drm/drm_bridge_connector.c +++ b/drivers/gpu/drm/drm_bridge_connector.c @@ -5,6 +5,8 @@ #include #include +#include +#include #include #include @@ -107,10 +109,9 @@ static void drm_bridge_connector_hpd_notify(struct drm_connector *connector, } } -static void drm_bridge_connector_hpd_cb(void *cb_data, - enum drm_connector_status status) +static void drm_bridge_connector_handle_hpd(struct drm_bridge_connector *drm_bridge_connector, + enum drm_connector_status status) { - struct drm_bridge_connector *drm_bridge_connector = cb_data; struct drm_connector *connector = &drm_bridge_connector->base; struct drm_device *dev = connector->dev; @@ -123,6 +124,21 @@ static void drm_bridge_connector_hpd_cb(void *cb_data, drm_kms_helper_connector_hotplug_event(connector); } +static void drm_bridge_connector_hpd_cb(void *cb_data, + enum drm_connector_status status) +{ + drm_bridge_connector_handle_hpd(cb_data, status); +} + +static void drm_bridge_connector_oob_hotplug_event(struct drm_connector *connector, + enum drm_connector_status status) +{ + struct drm_bridge_connector *bridge_connector = + to_drm_bridge_connector(connector); + + drm_bridge_connector_handle_hpd(bridge_connector, status); +} + static void drm_bridge_connector_enable_hpd(struct drm_connector *connector) { struct drm_bridge_connector *bridge_connector = @@ -216,6 +232,7 @@ static const struct drm_connector_funcs drm_bridge_connector_funcs = { .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, .debugfs_init = drm_bridge_connector_debugfs_init, + .oob_hotplug_event = drm_bridge_connector_oob_hotplug_event, }; /* ----------------------------------------------------------------------------- @@ -352,6 +369,12 @@ struct drm_connector *drm_bridge_connector_init(struct drm_device *drm, if (!drm_bridge_get_next_bridge(bridge)) connector_type = bridge->type; +#ifdef CONFIG_OF + if (!drm_bridge_get_next_bridge(bridge) && + bridge->of_node) + connector->fwnode = fwnode_handle_get(of_fwnode_handle(bridge->of_node)); +#endif + if (bridge->ddc) ddc = bridge->ddc;