From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7646DCA5FD2 for ; Thu, 1 Oct 2026 12:44:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References :Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=1Tlnho1brzlMd4ksWzTtyfdq2Zw7j9o87SIUMOY24WY=; b=VehlHIJyj24QkdwbbjUgp1RnpG SZJX3XcZu2Qsc9jugLJ2wAcCmmu0EhBp4Wdp7khD7wf5qTomCgH8dchvIV8lKEy/71EOC4nEkRJCf 7u2CNHwhWu1eu4nF2N3+7Dyxm5Hpf7FxoHa5MBVACXpYin4MWo3LS1nBgSFngrkePhYxlSMTL4Bdf 0MkMfXpZGdceHfUEMSfIl2FIhZN5sYetYztdIhmq4ABrQPXyI5o4VPelC/cIAuCxW/v5KvSpnnA+i 6UCV1PoH5JTmhe3BBdX0G/gg2zLwgcjM5YvhAsxdPO8DASL7/nmevv2bXKE6OYT8+ZJyoSQog2fTo qfHwJW0A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xCG9X-000000097ST-1Qow; Thu, 01 Oct 2026 12:44:47 +0000 Received: from smtpout-02.galae.net ([185.246.84.56]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1xCG9T-000000097P2-3zGI for linux-arm-kernel@lists.infradead.org; Thu, 01 Oct 2026 12:44:45 +0000 Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-02.galae.net (Postfix) with ESMTPS id 608501A24E0; Thu, 1 Oct 2026 12:44:42 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id 2A7A360341; Thu, 1 Oct 2026 12:44:42 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 523BC10328112; Thu, 1 Oct 2026 14:44:36 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1790858680; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=1Tlnho1brzlMd4ksWzTtyfdq2Zw7j9o87SIUMOY24WY=; b=bk0cDzyg1YTT1G/89fCXjKIwa5+qKVwuT+Gst/ZBFW5kBoefdYewguhvKLuLO75angxUuU vALs6E1p9sJZsfbLvBADsLVywiyyH90uyZdcFay8tFlGtldvdxzabi7mQf3nEGqUS8jCpi M8i5vDcFxbYIgn8Xr71/l3KUAToKemYcv/SeAexWYbBBpeCKUeB0EJ4l2WzuHubrFn6DtF M8+xdeLd1pn7op8ArqwuG+SI2yjOYVOFTUA/QdS/Ku5/kw93cyCWwI4956qwsADXUjC260 4rnqqbSGYWfN8nRqnYfhIAsRtMz+U5ITa9nvOXOn84zvIUxpn1KL7Qw7oThmnA== From: Luca Ceresoli Date: Thu, 01 Oct 2026 14:42:41 +0200 Subject: [PATCH RFC v2 19/24] drm/bridge: display-connector: implement .get_next_bridge MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20261001-drm-bridge-hotplug-v2-19-8e34986dcb68@bootlin.com> References: <20261001-drm-bridge-hotplug-v2-0-8e34986dcb68@bootlin.com> In-Reply-To: <20261001-drm-bridge-hotplug-v2-0-8e34986dcb68@bootlin.com> To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Inki Dae , Jagan Teki , Marek Szyprowski , Jessica Zhang , Douglas Anderson , Marek Vasut , Stefan Agner , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam Cc: Hui Pu , Ian Ray , Luca Ceresoli , Thomas Petazzoni , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org X-Mailer: b4 0.16.0 X-Last-TLS-Session-Version: TLSv1.3 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261001_054444_149310_A70EC560 X-CRM114-Status: UNSURE ( 9.31 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This bridge never has a next bridge. Add get_next_callback func to expose this. Signed-off-by: Luca Ceresoli --- drivers/gpu/drm/bridge/display-connector.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/gpu/drm/bridge/display-connector.c b/drivers/gpu/drm/bridge/display-connector.c index eb3412ec30a0..8b16ad89c7f1 100644 --- a/drivers/gpu/drm/bridge/display-connector.c +++ b/drivers/gpu/drm/bridge/display-connector.c @@ -36,6 +36,11 @@ to_display_connector(struct drm_bridge *bridge) return container_of(bridge, struct display_connector, bridge); } +static struct drm_bridge *display_connector_get_next_bridge(struct drm_bridge *bridge) +{ + return NULL; +} + static int display_connector_attach(struct drm_bridge *bridge, struct drm_encoder *encoder, enum drm_bridge_attach_flags flags) @@ -214,6 +219,7 @@ static u32 *display_connector_get_input_bus_fmts(struct drm_bridge *bridge, } static const struct drm_bridge_funcs display_connector_bridge_funcs = { + .get_next_bridge = display_connector_get_next_bridge, .attach = display_connector_attach, .destroy = display_connector_destroy, .detect = display_connector_bridge_detect, @@ -412,6 +418,7 @@ static int display_connector_probe(struct platform_device *pdev) conn->bridge.of_node = pdev->dev.of_node; + conn->bridge.ops = DRM_BRIDGE_OP_GET_NEXT_BRIDGE; if (conn->bridge.ddc) conn->bridge.ops |= DRM_BRIDGE_OP_EDID | DRM_BRIDGE_OP_DETECT; -- 2.55.0