From patchwork Sun Sep 3 21:29:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 720382 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 6FCE2CA0FE9 for ; Sun, 3 Sep 2023 21:29:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348894AbjICV3y (ORCPT ); Sun, 3 Sep 2023 17:29:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54152 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348757AbjICV3r (ORCPT ); Sun, 3 Sep 2023 17:29:47 -0400 Received: from mail-lf1-x130.google.com (mail-lf1-x130.google.com [IPv6:2a00:1450:4864:20::130]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C9AA8119 for ; Sun, 3 Sep 2023 14:29:42 -0700 (PDT) Received: by mail-lf1-x130.google.com with SMTP id 2adb3069b0e04-500cefc3644so1398551e87.3 for ; Sun, 03 Sep 2023 14:29:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1693776581; x=1694381381; darn=vger.kernel.org; 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=D5QQwEFqCct7BAxDxlOQzyh1UFNTPO5xvPloHLAel3c=; b=bhqdKSGAszqeMRe9e1IFtBKgm5fxEVdjiR9uXlqGf1NCtWNW+rdz/D09zbsUy3ZBcM VJoLeBt6yHZauCOxg3+ZusooBODWSW9Cae5vWUCoDIdvJWsJOrvRr0uBjEb+T5iDkBHF GKkL6G7eqrjiiBU0DmYG2rM49W1CgcBuXShwsC5J+UG4yj5GdA4g1mN4wiKv8VrvHhe8 h+eb3CpT8s1TjGr/UTkNsQ/kdV6i0Vi7aOh7R+L1Fg8StGCuUT0CJ7MYuxqDTM7bReeU O1kOT001/B/sreMX5c5oxU87okpG60eCwKRcxlQ1k4okr2Ep2RVetKftoPdWnB50DUuW 8W5Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1693776581; x=1694381381; 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=D5QQwEFqCct7BAxDxlOQzyh1UFNTPO5xvPloHLAel3c=; b=cha1oLqApI5Z7PArvEcjYoWhI2w3lebaxRQ0eqZPc2aUSV4ZCeei0kqJfBZpUAqclF tzJxENAESSHRhQ/5lK146mwqJC4zbXniLhtk6nFSPX069MCBrCCsfP+Oa8iklGL9OHUX YSlCOkV8oIZRKppPrtr8XzTM8MItsdJmexxCsXBmmZUkHukuFruv+h/EoIlN/Hvb8TX0 R32RN9nhw7PWRycpbMwKKtnwblPx3hFwgfa6zvou0gn9g6HNSNxmiO2z8XZCT73xLvI4 z1gdCfUCd8fqc+bJi3B/i6wnoVWRQlBrkMIlVf/aWCTRb93um6LWYflsUS7MYiTCISYJ 3XfA== X-Gm-Message-State: AOJu0YyHJQoKHCjJg0/RAszk8HwKWdgX7dgZWhCfUBh6kTWo/6k6TfHj VCXeyv+hsAUBf1+kKAcvFcmVlQ== X-Google-Smtp-Source: AGHT+IFzGUwTyKGwD7PSfbMHsP+QYUbDM5UQr/fxVIRAAFQABie93pcvAKUcK3M3a83cjojEciNiLg== X-Received: by 2002:a05:6512:1316:b0:4fb:90c6:c31a with SMTP id x22-20020a056512131600b004fb90c6c31amr6277330lfu.14.1693776581063; Sun, 03 Sep 2023 14:29:41 -0700 (PDT) Received: from umbar.unikie.fi ([192.130.178.91]) by smtp.gmail.com with ESMTPSA id eq11-20020a056512488b00b004ff8d9ed368sm1412352lfb.258.2023.09.03.14.29.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 03 Sep 2023 14:29:40 -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: Mon, 4 Sep 2023 00:29:37 +0300 Message-Id: <20230903212937.2876815-4-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230903212937.2876815-1-dmitry.baryshkov@linaro.org> References: <20230903212937.2876815-1-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 | 31 +++++++++++++++++++++++--- 1 file changed, 28 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/drm_bridge_connector.c b/drivers/gpu/drm/drm_bridge_connector.c index 10b52224db37..bf73960c2c2a 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 = @@ -191,6 +207,8 @@ static void drm_bridge_connector_destroy(struct drm_connector *connector) drm_connector_unregister(connector); drm_connector_cleanup(connector); + fwnode_handle_put(connector->fwnode); + kfree(bridge_connector); } @@ -216,6 +234,7 @@ 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 +371,12 @@ 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;