From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from PA4PR04CU001.outbound.protection.outlook.com (mail-francecentralazon11013065.outbound.protection.outlook.com [40.107.162.65]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CB8EE3E8325; Fri, 12 Jun 2026 11:59:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.162.65 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781265550; cv=fail; b=CR/SucmpOT2CnzQ8AtfAtuc1BGCXrwShDgEdgEyeaRIWodmwyXagULs/bvnNCMMGSdqxFtZRcftxxRUbHRGgDh+vZmqsgOK8rNv6Q7YOPTbAoUeXcJtDenYSrUwTlPRzkuZ0RbH1AV39i1ZzTzQLR+ShRlJXkvirIXq/wBxI/ZQ= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781265550; c=relaxed/simple; bh=aeAVV+pp+T7/rVHXmtFH5Pz+dbvWn2brDkE0QuDceaY=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: Content-Type:MIME-Version; b=PJtZU6iAFEAqfcfelcW6hsXyxsLxaQHgHcXNVkW0ncpKUxMUvMBTs2KOcpC6ygrkYZSYr42KZ5EhpilIkSgMtElDdMHTk6TIPG2/bGvPCj39eLD2+4qW+WBB3XMwM6K8wXVDNHM4A9dGotWfxbg3s14g3xD3Ew4h2t6FqnkRX/g= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=oss.nxp.com; spf=pass smtp.mailfrom=oss.nxp.com; dkim=pass (2048-bit key) header.d=NXP1.onmicrosoft.com header.i=@NXP1.onmicrosoft.com header.b=w4op48/z; arc=fail smtp.client-ip=40.107.162.65 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=oss.nxp.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.nxp.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=NXP1.onmicrosoft.com header.i=@NXP1.onmicrosoft.com header.b="w4op48/z" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=wE39NFqUbVfxuohF6cwU0JxwgElaWUTre4+AIUqFxd0MVF9BFSeamfsNuxcgccN+cDI7TYaXxJn6I5Qzo7QMnrSATmEhYu4vVNc5+0L81M5YCucO4Jv/ElcuvXWqHxD/xWJXJEQ3RispTUagwxZukd+2OIkReovGeF/+OrQOs2OZJxRNv2bi99rYIJ/pExpoolVUV9RQT6NwXELbHjGVLqRBkt6SthH/b1LReWCMXg/G0Ic7i6++hbE4QRsWhaz+kZD6T2KYKZUIrX8rjmaXhGgf2Mz1XkbtITDnAezpgRAPOlLTN+wi2b3HSjFP2h0oy7jKzSNeV7+t172PWKsaJQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=kaaWcbZ/67o8w8elnb4q1GWHdADROOHKCjbaDP9WJwU=; b=UQbBYH2XYhYMRcX3UNXgwLJ5WnT9HWVMqgAyuQRTnIlCURPA4kuWdyh+EelbX6zWoE9k6Q1CwIe8EQtuHc2C1Ymsvv8fuvNevbttfJ0/pyTpkfDlSK3hzmBX4FIAUSOzw50G3C00qKpdDDK9DjHz5KYCwyDZD9bGwjgoM+PbAEhT8BYwI3J8vYQAM9Unnvw/+1pTS8GPl2GTBOfrubSLhtDssc89TsPVbjvnjYZlhP5lY5taT5tBDw5eG0ENiQVaL25gVDAabmqqnSMfqW2YN3UGBet4AOsl/zEBq/2FNynQ1XRYKF2wgaMoDYljk2f89cgEh8qnxnIfibO3i7T0Yw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oss.nxp.com; dmarc=pass action=none header.from=oss.nxp.com; dkim=pass header.d=oss.nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=NXP1.onmicrosoft.com; s=selector1-NXP1-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=kaaWcbZ/67o8w8elnb4q1GWHdADROOHKCjbaDP9WJwU=; b=w4op48/zUnUxuqWqgTez2ROFl9TsZaA8Mi5h7PiVu+0lM3at4oErm+xOPkT0lXGNHwM2zj9sQPJjEI+rtPB9mQyZMGQ0EiLz+jZknb5EAeN4TIZbczoDpTehW7JR6tWznN69swstfu/fOwbZAqcln3cFjes5xCEhzcdSHN5O3RQQIssa5YZoypufP3Vj+Oj+RFkGdL3sFxE9cwE2gnh64qqpGrn2vo+Dyh1tWQWODMgUN9GZIZmnECdHzTw97Y2e+Q5cHj8gT0Xh2XScM6qDhkudo94XlOP1G7oS8S2jaRW+SAEwc2jSnqlOujv5MrB1o5BAPn4zJWq3UutL7RRorw== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=oss.nxp.com; Received: from GV2PR04MB12318.eurprd04.prod.outlook.com (2603:10a6:150:32b::19) by GV2PR04MB11710.eurprd04.prod.outlook.com (2603:10a6:150:2d5::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.113.13; Fri, 12 Jun 2026 11:58:54 +0000 Received: from GV2PR04MB12318.eurprd04.prod.outlook.com ([fe80::a498:2b5a:cbdb:d6fa]) by GV2PR04MB12318.eurprd04.prod.outlook.com ([fe80::a498:2b5a:cbdb:d6fa%5]) with mapi id 15.21.0092.010; Fri, 12 Jun 2026 11:58:54 +0000 From: Laurentiu Palcu To: Ying Liu , Luca Ceresoli , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter Cc: Laurentiu Palcu , linux-clk@vger.kernel.org, imx@lists.linux.dev, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: [PATCH v9 2/9] drm/bridge: fsl-ldb: Get the next non-panel bridge Date: Fri, 12 Jun 2026 14:58:33 +0300 Message-Id: <20260612-dcif-upstreaming-v9-2-8d0ff89aa3c5@oss.nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260612-dcif-upstreaming-v9-0-8d0ff89aa3c5@oss.nxp.com> References: <20260612-dcif-upstreaming-v9-0-8d0ff89aa3c5@oss.nxp.com> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-ClientProxiedBy: AS4P192CA0032.EURP192.PROD.OUTLOOK.COM (2603:10a6:20b:658::15) To GV2PR04MB12318.eurprd04.prod.outlook.com (2603:10a6:150:32b::19) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: GV2PR04MB12318:EE_|GV2PR04MB11710:EE_ X-MS-Office365-Filtering-Correlation-Id: c60f3e92-cc04-4619-3da6-08dec879f9fc X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-LD-Processed: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635,ExtAddr X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|19092799006|23010399003|7416014|1800799024|376014|921020|22082099003|18002099003|11063799006|56012099006; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:GV2PR04MB12318.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(366016)(19092799006)(23010399003)(7416014)(1800799024)(376014)(921020)(22082099003)(18002099003)(11063799006)(56012099006);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?RnplMjRxZ1ZPVFNrckoydkRPY3JYNzN6d3FHaUYvTzk4MnF1d2h6dDNpc2JT?= =?utf-8?B?WUdLQmNmZGEvQ09VQ01URjcrR1ZaQWhFZnh4RG1RRjVJRGFzUW9qcVBvcWw5?= =?utf-8?B?WUw3V0l1Y1FGcE51dk04YlFEckVmRGlyS2VyYU9HVkxRL0xqWHNPaVI5bk83?= =?utf-8?B?cEVWaisyK3VYOWFCczBUZG81YzNBcW5Ib0NKaEkvYlVwK3RaTGU1Rm5SdG9N?= =?utf-8?B?VzhLdlJrUHhtOVVRU2ZLcW5nTkRYOGpSUFl5TG85c1ZXQ0tzdWwrT2NPeGZq?= =?utf-8?B?OUpUOFZiQmdUTzFEdmJjd2pnTVhCZDZGUUFDajFsQk9SUGJUN1IrclNjYW1M?= =?utf-8?B?dGsvb0owWUJlTndKeUUzUFYyNE9DcDBCYXdzODM0YXBVTWErYWdmWmh0V3Z4?= =?utf-8?B?M0ZwNEVKWVF0OTA4NlM2UWlSOTErN1pBYncydmRUZHBVV29odFA2QlNMMEdE?= =?utf-8?B?eDdTcER0bkQ4TXNZbnYzRjBscmNaaFM2aVF0SXVuZWticyszUTJ5bVVZL1Jl?= =?utf-8?B?K2g5ZnBjWEV1U3AzZWF6R0tQcHZMVTJyYkpqUlJVSnhQN0I5YjZWaEU2VDB0?= =?utf-8?B?WThaWmprNHV4RFh2ZXBZbk9hUHZWMVVBaC9sczFlcys0a1RhQUJjcy9lOFA2?= =?utf-8?B?dFBBQk1BcDcwdk9uRkwrUitjb3lrbHQ1elBNK2g2TnBiWEVROVBTZjRGK3gy?= =?utf-8?B?TXVsM1hFRXRXUEp1eDRZVWVaNG1TRnRwS2V5STBQcWhMS1phMHN6VEFtNnox?= =?utf-8?B?NkZSWjk1U0cwSFRKa1VCTFZtLyswNUVudkRXUUt3dVRvRmQ0ZkJmVXQyZml6?= =?utf-8?B?c3hNT0FYV1VBd0t2UW9LZ1RTWUxxdHlnd2huUEUrcDhvdlIyMkZGUDJJeEdk?= =?utf-8?B?OTdzMTZnUkw5MWZvcXJDZ1JSSDlrekUyVHovY1EzS2J0ejFIUWNkOFJSc293?= =?utf-8?B?UXRvUUtyQnB1ZFdrTCsvR2tMdnRIQ0Z5eG1XbEhCbHpnaHhwc2JCY3BmVVFN?= =?utf-8?B?RzlwNTRyQUJaSzdpSlBDRFp3aWZOaGUvZG9rUjhnLzFhUTY5MWJQaTV4Wkxa?= =?utf-8?B?YUpMZ2p2QnVmSW01RllWTWk3dmZRaXRtYysxYU11TzRMQS9ZcU10RW40RDJZ?= =?utf-8?B?ZDhtWUFCaVlFeDFhYTdwb0R2eW5Ca1JnaGRSeFAwOVhsclRmT3JhcjlPeHR4?= =?utf-8?B?eDYvYi9MSElZSHFRVnBWaGpJcFZGdlFrK3EwWWpFV3RXSzJxVXQ2SnlXWnds?= =?utf-8?B?cnVpQVR1disxWDVxVEFMSFZ2L0J2RXVxUG1oRWhXVVFuK2t6ZFdDblBMVmhq?= =?utf-8?B?Qi9aeWRSZFQ5M3VBSnVHb2NpdnA3bEl1dDlmYWdIRGl4VDNtVHM0cEdRWDFE?= =?utf-8?B?ZENMYWgzSU00Rm1kbTg4aWdQUmMxS1hKR0FyRHV5TTRJNjZrbkdvVFB2Nkl3?= =?utf-8?B?TUhwTmtCL0VQd0VYT21yR0xlYVpPeWIrUzJjVFZ2dHFLeEFadEpLNjljNUE0?= =?utf-8?B?WHJncTZzVkV5RjRiMVYyTXJHK3YxbThqb1FjTGJoQTB4TE9VTWxGZDE0b2pa?= =?utf-8?B?SllUUFRlRDI0czI0a3RsU214Um9SaW9GeEpvOWpnU3lxMklGR2FQSXlmL0FT?= =?utf-8?B?VlpDNDB2Q3RwWW5rMnJISXQ4NjE2VGJ4RTZzS2FGOGEySm1VQmhEY3ZuWGsz?= =?utf-8?B?RkxoKzNsU25EVVJ0VnpCTHpkRFpMQldBcENYOXZMOGJnd0lEYW00UjJXUndX?= =?utf-8?B?RS82eThiZDZiUVdGNUdIZUQrU0lMVHFReDVEYmhWMjZhOUVDWXRIYUlwVWph?= =?utf-8?B?ZmczalllQzZaM2cwV01sN1ZrWFBtaWhqL09rNDRERGRsMGJaRnEwVW1DbjNN?= =?utf-8?B?b0IrbkRROGR3eFJmRGdOdHNkMEVGZ29kVWgxQS9pWTE2TGRUMEJEWGlhbHFT?= =?utf-8?B?c0hyZWpLRkFHYm5ZWUFhSFA3ako5cFNyZDRSTGpTNFYvUFFXSXJJVzVibmlx?= =?utf-8?B?cVlHeStMQ09UWXE2ckFoTlkzM2VCcEdBSmRSbWcxRy9WQnc4N1ZDaWtXU0pP?= =?utf-8?B?OXVxd1pMcW4xVDdkbG12M2NVcWJWWjZmeHYyejFHakltd0g5dnJWb2hXeThJ?= =?utf-8?B?dzBzL1ZTVUYreXp3eTYvSitCcXpEc3V1QS90UUZuQUNmaE1QWllCUXRsTGxT?= =?utf-8?B?QThJYlVnZjVxb0RJR01kRlozUG10R2NOdEJTeUx0d2w4cHdDUG14YmF0Z0t6?= =?utf-8?B?ZXBxYnRoWWxIRzByTmF4ZnlyUjF3aHFpNUVsWkpab0JSK0ZnV2hNOVhYWmJO?= =?utf-8?B?aVZaZjN5c2hMdFpmYVlFdVA1ZEIybDhMaDhUT2RxM2xrMDJxWG5mclpBTDhq?= =?utf-8?Q?HvLEFFBdq4VX/Ty0=3D?= X-OriginatorOrg: oss.nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: c60f3e92-cc04-4619-3da6-08dec879f9fc X-MS-Exchange-CrossTenant-AuthSource: GV2PR04MB12318.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Jun 2026 11:58:54.5732 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: HbTKNGlTUrUM76qD8SzFab/WyYqI8wpO9bW8dA2kgcWKiC+eIKbQQAYGW/kCynVWi61OdbbuJTqryrj6+KjTKQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: GV2PR04MB11710 From: Liu Ying The next bridge in bridge chain could be a panel bridge or a non-panel bridge. Use devm_drm_of_get_bridge() to replace the combination function calls of of_drm_find_panel() and devm_drm_panel_bridge_add() to get either a panel bridge or a non-panel bridge, instead of getting a panel bridge only. Signed-off-by: Liu Ying Signed-off-by: Laurentiu Palcu --- drivers/gpu/drm/bridge/fsl-ldb.c | 31 ++++++++++++------------------- 1 file changed, 12 insertions(+), 19 deletions(-) diff --git a/drivers/gpu/drm/bridge/fsl-ldb.c b/drivers/gpu/drm/bridge/fsl-ldb.c index 9bfaa3f933709..bd03c36ee696c 100644 --- a/drivers/gpu/drm/bridge/fsl-ldb.c +++ b/drivers/gpu/drm/bridge/fsl-ldb.c @@ -15,7 +15,6 @@ #include #include #include -#include #define LDB_CTRL_CH0_ENABLE BIT(0) #define LDB_CTRL_CH0_DI_SELECT BIT(1) @@ -86,7 +85,6 @@ static const struct fsl_ldb_devdata fsl_ldb_devdata[] = { struct fsl_ldb { struct device *dev; struct drm_bridge bridge; - struct drm_bridge *panel_bridge; struct clk *clk; struct regmap *regmap; const struct fsl_ldb_devdata *devdata; @@ -119,7 +117,7 @@ static int fsl_ldb_attach(struct drm_bridge *bridge, { struct fsl_ldb *fsl_ldb = to_fsl_ldb(bridge); - return drm_bridge_attach(encoder, fsl_ldb->panel_bridge, + return drm_bridge_attach(encoder, fsl_ldb->bridge.next_bridge, bridge, flags); } @@ -296,9 +294,8 @@ static const struct drm_bridge_funcs funcs = { static int fsl_ldb_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct device_node *panel_node; struct device_node *remote1, *remote2; - struct drm_panel *panel; + struct drm_bridge *next_bridge; struct fsl_ldb *fsl_ldb; int dual_link; @@ -321,36 +318,32 @@ static int fsl_ldb_probe(struct platform_device *pdev) if (IS_ERR(fsl_ldb->regmap)) return PTR_ERR(fsl_ldb->regmap); - /* Locate the remote ports and the panel node */ + /* Locate the remote ports. */ remote1 = of_graph_get_remote_node(dev->of_node, 1, 0); remote2 = of_graph_get_remote_node(dev->of_node, 2, 0); fsl_ldb->ch0_enabled = (remote1 != NULL); fsl_ldb->ch1_enabled = (remote2 != NULL); - panel_node = of_node_get(remote1 ? remote1 : remote2); of_node_put(remote1); of_node_put(remote2); - if (!fsl_ldb->ch0_enabled && !fsl_ldb->ch1_enabled) { - of_node_put(panel_node); - return dev_err_probe(dev, -ENXIO, "No panel node found"); - } + if (!fsl_ldb->ch0_enabled && !fsl_ldb->ch1_enabled) + return dev_err_probe(dev, -ENXIO, "No next bridge node found"); dev_dbg(dev, "Using %s\n", fsl_ldb_is_dual(fsl_ldb) ? "dual-link mode" : fsl_ldb->ch0_enabled ? "channel 0" : "channel 1"); - panel = of_drm_find_panel(panel_node); - of_node_put(panel_node); - if (IS_ERR(panel)) - return PTR_ERR(panel); - if (of_property_present(dev->of_node, "nxp,enable-termination-resistor")) fsl_ldb->use_termination_resistor = true; - fsl_ldb->panel_bridge = devm_drm_panel_bridge_add(dev, panel); - if (IS_ERR(fsl_ldb->panel_bridge)) - return PTR_ERR(fsl_ldb->panel_bridge); + next_bridge = devm_drm_of_get_bridge(dev, dev->of_node, + fsl_ldb->ch0_enabled ? 1 : 2, + 0); + if (IS_ERR(next_bridge)) + return dev_err_probe(dev, PTR_ERR(next_bridge), + "failed to get next bridge\n"); + fsl_ldb->bridge.next_bridge = drm_bridge_get(next_bridge); if (fsl_ldb_is_dual(fsl_ldb)) { struct device_node *port1, *port2; -- 2.51.0