From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752672AbeFAMmy (ORCPT ); Fri, 1 Jun 2018 08:42:54 -0400 Received: from mail.micronovasrl.com ([212.103.203.10]:38760 "EHLO mail.micronovasrl.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752141AbeFAMkh (ORCPT ); Fri, 1 Jun 2018 08:40:37 -0400 Authentication-Results: mail.micronovasrl.com (amavisd-new); dkim=pass reason="pass (just generated, assumed good)" header.d=micronovasrl.com X-Spam-Flag: NO X-Spam-Score: -2.9 From: Giulio Benetti To: Greg Kroah-Hartman Cc: Jiri Slaby , Andy Shevchenko , Kees Cook , Matthias Brugger , Allen Pais , Sean Young , Ed Blake , Stefan Potyra , Philipp Zabel , Joshua Scott , Vignesh R , Rolf Evers-Fischer , Aaron Sierra , Rafael Gago , Joel Stanley , Sean Wang , linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org, Giulio Benetti Subject: [PATCH 2/8] serial: 8250_dw: allow enable rs485 at boot time Date: Fri, 1 Jun 2018 14:40:15 +0200 Message-Id: <20180601124021.102970-3-giulio.benetti@micronovasrl.com> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180601124021.102970-1-giulio.benetti@micronovasrl.com> References: <20180601124021.102970-1-giulio.benetti@micronovasrl.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org If "linux,rs485-enabled-at-boot-time" is specified need to setup 485 in probe function. Call uart_get_rs485_mode() to get rs485 configuration, then call rs485_config() callback directly to setup port as rs485. Signed-off-by: Giulio Benetti --- drivers/tty/serial/8250/8250_dw.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c index 45366e6e5411..0f8b4da03d4e 100644 --- a/drivers/tty/serial/8250/8250_dw.c +++ b/drivers/tty/serial/8250/8250_dw.c @@ -582,8 +582,11 @@ static int dw8250_probe(struct platform_device *pdev) if (data->uart_16550_compatible) p->handle_irq = NULL; - if (!data->skip_autocfg) + if (!data->skip_autocfg) { dw8250_setup_port(p); + uart_get_rs485_mode(dev, &p->rs485); + dw8250_rs485_config(p, &p->rs485); + } /* If we have a valid fifosize, try hooking up DMA */ if (p->fifosize) { -- 2.17.0