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b=bb4RoBbm4p4U2U0Mniu6VaEzRf9FQF1GxgWdFNRB+Ax1GCfFM8IOi1sa05v8dCIMMWRpRN0/DpzonYCYcRu1bMiV1KcVbPHsA4xl28eCdTHiX6eb+RbXGDU8+WuzVZ5lgnoJ9EEdKgliYZxFqCoGLPqzVjdF4CRVI/uTcqCNLpE= 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 GV1P193MB2245.EURP193.PROD.OUTLOOK.COM (2603:10a6:150:2c::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7135.25; Wed, 3 Jan 2024 06:19:10 +0000 Received: from VI1P193MB0413.EURP193.PROD.OUTLOOK.COM ([fe80::67b0:68bf:2582:19cb]) by VI1P193MB0413.EURP193.PROD.OUTLOOK.COM ([fe80::67b0:68bf:2582:19cb%6]) with mapi id 15.20.7159.013; Wed, 3 Jan 2024 06:19:10 +0000 From: Lino Sanfilippo To: gregkh@linuxfoundation.org, jirislaby@kernel.org, ilpo.jarvinen@linux.intel.com Cc: u.kleine-koenig@pengutronix.de, shawnguo@kernel.org, s.hauer@pengutronix.de, mcoquelin.stm32@gmail.com, alexandre.torgue@foss.st.com, cniedermaier@dh-electronics.com, hugo@hugovil.com, m.brock@vanmierlo.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 v7 2/7] serial: core: set missing supported flag for RX during TX GPIO Date: Wed, 3 Jan 2024 07:18:13 +0100 Message-ID: <20240103061818.564-3-l.sanfilippo@kunbus.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240103061818.564-1-l.sanfilippo@kunbus.com> References: <20240103061818.564-1-l.sanfilippo@kunbus.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: FR0P281CA0267.DEUP281.PROD.OUTLOOK.COM (2603:10a6:d10:b5::13) To VI1P193MB0413.EURP193.PROD.OUTLOOK.COM (2603:10a6:803:4e::14) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: VI1P193MB0413:EE_|GV1P193MB2245:EE_ X-MS-Office365-Filtering-Correlation-Id: 0ae9fc89-1f2f-47bd-68f8-08dc0c23e62f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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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") Reviewed-by: Ilpo J=C3=A4rvinen 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 d155131f221d..1204102d7162 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -3642,6 +3642,8 @@ int uart_get_rs485_mode(struct uart_port *port) if (IS_ERR(desc)) return dev_err_probe(dev, PTR_ERR(desc), "Cannot get rs485-rx-during-tx-= gpios\n"); port->rs485_rx_during_tx_gpio =3D desc; + if (port->rs485_rx_during_tx_gpio) + port->rs485_supported.flags |=3D SER_RS485_RX_DURING_TX; =20 return 0; } --=20 2.43.0