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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 C5765CA5FCB for ; Thu, 1 Oct 2026 12:45:00 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2190D10F667; Thu, 1 Oct 2026 12:45:00 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=bootlin.com header.i=@bootlin.com header.b="oZmPZJ8c"; dkim-atps=neutral Received: from smtpout-02.galae.net (smtpout-02.galae.net [185.246.84.56]) by gabe.freedesktop.org (Postfix) with ESMTPS id D407310F67A for ; Thu, 1 Oct 2026 12:44:58 +0000 (UTC) Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-02.galae.net (Postfix) with ESMTPS id A8A1E1A24DD; Thu, 1 Oct 2026 12:44:57 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id 7490460341; Thu, 1 Oct 2026 12:44:57 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id D2282103280C2; Thu, 1 Oct 2026 14:44:50 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1790858695; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=J37od7VylY8s1OgC3uLV5wfOGm4SfNZZc7AuhkqKTIM=; b=oZmPZJ8cm2BuGFlIWQ+DWojJEuh5j4c1xhUnrfCUYiiel1PdZN35fW8a3KgomlbdeXwYAZ v+rC5qKObqmmyna/2kTcyU2b9XUguN+IwHlPuuM6GV2uIjS59/4e6JXiz571GejwI9MXfu 3rEd9OJ33Lnly+L9b+Pj8/Ov4pzNntBPtQXv2RIHEXNHZTPl8fEv5l7N7kgv/UMC8/WEe9 80q1DO03c3SLHVHRRvdzaq91BP4PqSWx9YS7vqsi8E9Hzqd6iQPUgCmVwIdOefKqU2m4/E 1QLhtXUIlBANFioif9w02x4wvPX1YTGuASrDRel/Lq98lMU2G68yFfbvLfJi3A== From: Luca Ceresoli Date: Thu, 01 Oct 2026 14:42:44 +0200 Subject: [PATCH RFC v2 22/24] drm/bridge: samsung-dsim: 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-v2-22-8e34986dcb68@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-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add get_next_callback func to expose the next bridge. Signed-off-by: Luca Ceresoli --- drivers/gpu/drm/bridge/samsung-dsim.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c index 6c48404fd60a..2da3a13260b9 100644 --- a/drivers/gpu/drm/bridge/samsung-dsim.c +++ b/drivers/gpu/drm/bridge/samsung-dsim.c @@ -1821,6 +1821,13 @@ static void samsung_dsim_mode_set(struct drm_bridge *bridge, drm_mode_copy(&dsi->mode, adjusted_mode); } +static struct drm_bridge *samsung_dsim_get_next_bridge(struct drm_bridge *bridge) +{ + struct samsung_dsim *dsi = bridge_to_dsi(bridge); + + return dsi->bridge.next_bridge ?: ERR_PTR(-ENODEV); +} + static int samsung_dsim_attach(struct drm_bridge *bridge, struct drm_encoder *encoder, enum drm_bridge_attach_flags flags) @@ -1835,6 +1842,7 @@ static int samsung_dsim_attach(struct drm_bridge *bridge, } static const struct drm_bridge_funcs samsung_dsim_bridge_funcs = { + .get_next_bridge = samsung_dsim_get_next_bridge, .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state, .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state, .atomic_create_state = drm_atomic_helper_bridge_create_state, @@ -2200,6 +2208,7 @@ int samsung_dsim_probe(struct platform_device *pdev) dsi->bridge.of_node = dev->of_node; dsi->bridge.type = DRM_MODE_CONNECTOR_DSI; + dsi->bridge.ops = DRM_BRIDGE_OP_GET_NEXT_BRIDGE; /* DE_LOW: i.MX8M Mini/Nano LCDIF-DSIM glue logic inverts HS/VS/DE */ if (dsi->plat_data->hw_type == DSIM_TYPE_IMX8MM) -- 2.55.0