From nobody Fri Jan 2 13:46:21 2026 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 A6104CDB470 for ; Wed, 11 Oct 2023 17:39:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233008AbjJKRjX (ORCPT ); Wed, 11 Oct 2023 13:39:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38672 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232655AbjJKRjP (ORCPT ); Wed, 11 Oct 2023 13:39:15 -0400 Received: from EUR02-DB5-obe.outbound.protection.outlook.com (mail-db5eur02on2088.outbound.protection.outlook.com [40.107.249.88]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B3CA6A9; Wed, 11 Oct 2023 10:39:13 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=RHq9G8iW5Y/QKfhvI7TrnEm9OYr+Hr6JTly/F1TrZQpjJs+HcIMxfqAUf6yYfKrpOd9kHDYPNIL6kvs8y3Lrl4kV0sLDtNWYQumDmi2fjC1NXz1sqslUvRr1jG0OEd3ephyUd13vsL8bnvUS2n3tcD+gfVEhTrDuCwpc5iWHwk984wtzuydI5YPT4JF+xkG/bR0NwSJLvS2E7sRvL3HhKhpdgRE2oVOY9YM4sLR5FigSUlq3KZYRIKRacNHW+0a1zN2CjMbRLMd9fF34BTG7PG4Ey0Q3DHZlLh4l2B94W+35tgYKZEErB+iqsLHRCpBF7da3lVPerooYmaW9XryFvA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; 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=qfr9CVtu2RhfuGF5Ku22UhpbfvaQTz9uuOjeoqXvcnk=; b=WFkQRrsaM7bh7KSZO7IVb3S5uydf/O9itgmU94qj8eWsHo3QNT0x4U9QhIFVfna/elMQfqyQaSPR+ij+XypQ1cdrAPLLpwi6xsMK7EDvUjk/OF2FGj9YQWuNYKpo/Y0d8fuO275ARID03sBr8kRzOuS0LMfN3r+lWkCaZyqQ3k179XuJz3Wst6K0pFVrHvX5ftGYVyBnNvuBCy0xqSc73KOJ1JRF8AcatDtj/Vx4eymuI8ZK49DG5CUAWOW/gYSndMCcwOv2mJg5g9k93OoRLSSOdG/EEcEjEBmOKeFZSZeqb0JDxPC8sqLDiNaClPX6+ts1r/JcpMj6h6QL26F3aQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=kunbus.com; dmarc=pass action=none header.from=kunbus.com; dkim=pass header.d=kunbus.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kunbus.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=qfr9CVtu2RhfuGF5Ku22UhpbfvaQTz9uuOjeoqXvcnk=; b=r4AiKIoJQJzvgW+IXJ1Dz/LXsF89G5OSVbEyxXYyLTCCow4214Vb0uzPoF32O7d4prv7Na5Mv374wrz1/AdtrxoyqKi1PmOJj9U2D4YGTnexhv0Eu/w2CKep/lMSK24MKumJFYZM6iq/3e3q6pFTXYrCm1KEX06GB9Ck8ESGRfo= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=kunbus.com; Received: from VI1P193MB0413.EURP193.PROD.OUTLOOK.COM (2603:10a6:803:4e::14) by AM8P193MB1187.EURP193.PROD.OUTLOOK.COM (2603:10a6:20b:362::10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6863.41; Wed, 11 Oct 2023 17:39:06 +0000 Received: from VI1P193MB0413.EURP193.PROD.OUTLOOK.COM ([fe80::550d:2425:c0ed:3e59]) by VI1P193MB0413.EURP193.PROD.OUTLOOK.COM ([fe80::550d:2425:c0ed:3e59%3]) with mapi id 15.20.6863.032; Wed, 11 Oct 2023 17:39:06 +0000 From: Lino Sanfilippo To: gregkh@linuxfoundation.org, jirislaby@kernel.org, ilpo.jarvinen@linux.intel.com Cc: shawnguo@kernel.org, s.hauer@pengutronix.de, mcoquelin.stm32@gmail.com, alexandre.torgue@foss.st.com, cniedermaier@dh-electronics.com, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, LinoSanfilippo@gmx.de, lukas@wunner.de, p.rosenberger@kunbus.com, Lino Sanfilippo , stable@vger.kernel.org Subject: [PATCH v2 3/7] serial: core: set missing supported flag for RX during TX GPIO Date: Wed, 11 Oct 2023 19:38:25 +0200 Message-Id: <20231011173829.10508-4-l.sanfilippo@kunbus.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20231011173829.10508-1-l.sanfilippo@kunbus.com> References: <20231011173829.10508-1-l.sanfilippo@kunbus.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: FR2P281CA0093.DEUP281.PROD.OUTLOOK.COM (2603:10a6:d10:9b::18) To VI1P193MB0413.EURP193.PROD.OUTLOOK.COM (2603:10a6:803:4e::14) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: VI1P193MB0413:EE_|AM8P193MB1187:EE_ X-MS-Office365-Filtering-Correlation-Id: eb6f5678-c754-462b-7505-08dbca80f79c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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:VI1P193MB0413.EURP193.PROD.OUTLOOK.COM;PTR:;CAT:NONE;SFS:(13230031)(136003)(39840400004)(376002)(366004)(346002)(396003)(230922051799003)(186009)(64100799003)(451199024)(1800799009)(6666004)(2616005)(6486002)(478600001)(1076003)(52116002)(38100700002)(6506007)(6512007)(66476007)(66946007)(66556008)(4326008)(8676002)(8936002)(41300700001)(316002)(86362001)(7416002)(2906002)(36756003)(5660300002);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?tdn6qAuQaOm0auhL9rQ3o+E+l1jrSnmoH7vmAf1DmWUybKeYdMie8IP24VbE?= =?us-ascii?Q?WypzUD4Kkx10y5IFYhaqDVHqTZe1lcssS0ambQZMyPwAtNH5Q982kWH9LNGD?= =?us-ascii?Q?25ypUzcfxA5QwRCaol04MD7xHvjUeT0xrEj4tYwD9sLCo1lU91WKGtsmRq/i?= =?us-ascii?Q?Gz6AfD1zptPKzyu+ABf1wCPQpRMcVm7Bq37T3ndy4jRScMXiX3e1gYEj+w0I?= =?us-ascii?Q?VYBtutObB180pGEdvgCoZo4f6HGZpW4p1/RfD7l2g9OL1Bz0LsIN5qx/o9q4?= =?us-ascii?Q?4AdIIhiKjfXGXNkiYcscGUA74Do/ui5fq7zVK/v6+NAohM1HGXRYuDDrQnDu?= =?us-ascii?Q?hCSnf6gJyXhpq4UgJJPAKC1X0qXe5CpMP/OatLxvp2YDLXImDcKGx+yvYHW5?= =?us-ascii?Q?LKRGeawb6A7mN7XbaZn+fsH1IFewQZLOyqscboAz3AlqzJ9Oi6Gjlzt4SWWW?= =?us-ascii?Q?+4iKnr9Q7WN6IlWTrHWnVM941NvpQDZwp95AC+I6NB/mAk4vSEnT7+FxCtXs?= =?us-ascii?Q?4mJyK/c3dLJcJPXYGscNuINX0lgVx4tDlI4TzhJrH5JZWf5n05od5yMNCC/A?= =?us-ascii?Q?a/Rf9VTolJ1xwk7jEbn3IFgyB5jWzpe+jpy7dDXvrGKmYR8EZMWeG1X1cxUY?= =?us-ascii?Q?NDlOXXqdCIp/KjkyhQ0gtdPBQjVY76HUyV9CeYOSLEuAKSzqD0IbpsN9BPhf?= =?us-ascii?Q?JjvsFafP+GGPjPCjOge2ASBTCAbv5lQdqRiJVyEnTZ8vlhGDdDNGGdAjud1e?= =?us-ascii?Q?BCS9lx9O1oByE8xVnBPe7nfNwvVDXPWaZcI0o88yexCywb5tYeNrPCaqJNoZ?= =?us-ascii?Q?mhptkKBkxmhfltVOW/wXdyroDGwVpHme5O3fyt+fout3AHNyISwvdMuiwOI+?= =?us-ascii?Q?lW+AALlKTGbc78jpDcOW1sDieCaw75zWuTlZobA0YI3XzIPJ4CbMWKCbDmER?= =?us-ascii?Q?PGFmYDGigSPL5TvtGGidkyEz1952DbzKyQgsU9WSEIK+BMdSaCz2oTKCnD/2?= =?us-ascii?Q?j9arHJah3JrfPnf58zqZoYqjqjjvN3/C7JtABAR070NYH97xltt/N+KYLWdm?= =?us-ascii?Q?1tYqxGnTEaf+HZ8FDU9mBgLE28yZXvNKR/bY6dRPyHhdQV9DLQrzkwGEFUVG?= =?us-ascii?Q?KJQlGmEftDqa0Riaslm1Ey9W7dDvNYn5slUC1UC8JJCJb53vjBelwGruMU50?= =?us-ascii?Q?JLDTBT9Hg7G9lhqXchDxjzq/L5jYfSFz/TgGtRCcI1Lp5go0Qn+PKEz7dQf7?= =?us-ascii?Q?8M3NNY05K4pfVGTuMeFOitkI+1tA9nBptU/4IFRN1Lz94Ibkyv6M7V26XN3c?= =?us-ascii?Q?KQIEHRGaFQjJ1OOODVtmhn2qfSpvdKKMQqqLHIAoSwQdkIRGNJbfLpdXh6cE?= =?us-ascii?Q?Zj+kUJS2Rs2WzQsLycvx3DjK4P0XiBBDNISsZ7pHztzfvhhOMgnwELa2gPVM?= =?us-ascii?Q?Y9i5m+6z8PkTr1gIEXF0Ub1EgHF7wlswyV9aO0eKW/laU62OzuH9Uj0OCuRY?= =?us-ascii?Q?qWm9DMJ7TxR3CxcwmtvkwpHlmmaXoKyaQOwm4lGa5egxkc+x0sBQlg16uI9S?= =?us-ascii?Q?YSKYxXNDfp1iB+KZ5/XtDh5zTvQfwXGfnQk3+oTBaD2UZu5Wwzfvc+X6ziO7?= =?us-ascii?Q?y8TNYrTc+4N3UpMwhV4hJrFVDAy3K+KpCG12m6ktUbJM?= X-OriginatorOrg: kunbus.com X-MS-Exchange-CrossTenant-Network-Message-Id: eb6f5678-c754-462b-7505-08dbca80f79c X-MS-Exchange-CrossTenant-AuthSource: VI1P193MB0413.EURP193.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Oct 2023 17:39:06.3396 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: aaa4d814-e659-4b0a-9698-1c671f11520b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: hLoPjhgH/Wrv5Zdngp8WkiPi3dtCS3CkcUmRMgLg0NAZpE+TbiEnxMCSWymYRFoRVGvFiNVf501etWzdSOPgcA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM8P193MB1187 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" If the RS485 feature RX-during-TX is supported by means of a GPIO set the according supported flag. Otherwise setting this feature from userspace may not be possible, since in uart_sanitize_serial_rs485() the passed RS485 configuration is matched against the supported features and unsupported settings are thereby removed and thus take no effect. Cc: stable@vger.kernel.org Fixes: 163f080eb717 ("serial: core: Add option to output RS485 RX_DURING_TX= state via GPIO") Signed-off-by: Lino Sanfilippo --- drivers/tty/serial/serial_core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_c= ore.c index ef0500be3553..697c36dc7ec8 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -3622,6 +3622,8 @@ int uart_get_rs485_mode(struct uart_port *port) port->rs485_rx_during_tx_gpio =3D NULL; return dev_err_probe(dev, ret, "Cannot get rs485-rx-during-tx-gpios\n"); } + if (port->rs485_rx_during_tx_gpio) + port->rs485_supported.flags |=3D SER_RS485_RX_DURING_TX; =20 return 0; } --=20 2.40.1