From patchwork Mon Oct 9 17:40:48 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 731070 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 68166CD6115 for ; Mon, 9 Oct 2023 17:40:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1377383AbjJIRk5 (ORCPT ); Mon, 9 Oct 2023 13:40:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41968 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1377878AbjJIRkz (ORCPT ); Mon, 9 Oct 2023 13:40:55 -0400 Received: from mail-lj1-x233.google.com (mail-lj1-x233.google.com [IPv6:2a00:1450:4864:20::233]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E7D33E9 for ; Mon, 9 Oct 2023 10:40:53 -0700 (PDT) Received: by mail-lj1-x233.google.com with SMTP id 38308e7fff4ca-2c17de836fbso60379961fa.1 for ; Mon, 09 Oct 2023 10:40:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1696873252; x=1697478052; 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=gNCqTbw0TXx6mJa4XxFsJKPj+YzowxN9M1WKiAD3Akc=; b=QBJuf/WVZa4xJ9Bf0RM9/OnH3xRHxMd7pDv/ZpNsNaYj1TJNssFRFfEK8tfBA1Ecph e+hvUGqcZOv+WmkjDVgnel4SpLHDAQDgET/Q1TPIlcHWcoAp97MwID5vEgM/nSK7Wfcq 6GXeknY4xPVfxT375Q+2U1351ytjw7rFYQ4+SrNpQv8lTo9u2ybYQheUmyIym28cUPJC yvr5mJPxoATnC6dN6woeFk4YcvKIAsblxvAvu+8+CsKBYoiU3Wt0QChm/HSmFg8U1tda AIxBnmtRyzPIPB51B6Vrmuni+n8A4tYIzC1AJhwpC8AmDcseUsTV9UMrCk5vIajz13E0 lOTQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1696873252; x=1697478052; 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=gNCqTbw0TXx6mJa4XxFsJKPj+YzowxN9M1WKiAD3Akc=; b=YishPj8ePsOSicVWyyFnvuJwbyjKrFpwjCzNr2K5/NClC7ZImcpMf27US44Lpl/1VZ fsoR9W0HjbkCEnxEDaBsLtT8W60uqfjDmdZwZxReCTxWOWGuvb/hwwNDUvsh0Yibr7l3 0rbxf8xRjY5xjMz6R+HacUCDp7w3fHGEYsZR2VQ35p2hi/FiAa0e6k1+JFXf+D2QrVor 6/YDFYUX+nAbM/mqo5tptRTcwPL4CceugXEsN6sfVZxmuvQinoD3fkyWJFtvi9Y9QFLx AOFtra/Zj2ynCaxR3Cu9fCGHktM6ripyr6+j9RJzlNiHz5r6+MO23FehZzIg/jj1Srgf 7vHA== X-Gm-Message-State: AOJu0Ywa7qK/18/HmoWKQ4j5XgYtMOWp3GOswefPctsywGhaiU0tvQ8r N4c0wjCzQ+xJKthejvlhCKcYLA== X-Google-Smtp-Source: AGHT+IFd3zAbVawrOZoSBNYmDde/LniLsk39R7NLQiYJ3/SMoBEYMa27+sX2ewYfUYKTGZviaiHkJA== X-Received: by 2002:a2e:7d15:0:b0:2bb:b01a:9226 with SMTP id y21-20020a2e7d15000000b002bbb01a9226mr13615060ljc.7.1696873252113; Mon, 09 Oct 2023 10:40:52 -0700 (PDT) Received: from umbar.unikie.fi ([192.130.178.91]) by smtp.gmail.com with ESMTPSA id z5-20020a2e3505000000b002bcbae4c21fsm2128988ljz.50.2023.10.09.10.40.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Oct 2023 10:40:51 -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, freedreno@lists.freedesktop.org, linux-usb@vger.kernel.org Subject: [PATCH v7 3/3 RESEND] drm/bridge_connector: implement oob_hotplug_event Date: Mon, 9 Oct 2023 20:40:48 +0300 Message-Id: <20231009174048.2695981-4-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231009174048.2695981-1-dmitry.baryshkov@linaro.org> References: <20231009174048.2695981-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@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 70582491d955..8239ad43aed5 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;