From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Authentication-Results: smtp.codeaurora.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=micronovasrl.com header.i=@micronovasrl.com header.b="dLTPKiqS" DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org CC71460555 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=micronovasrl.com Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932640AbeFFJwI (ORCPT + 25 others); Wed, 6 Jun 2018 05:52:08 -0400 Received: from mail.micronovasrl.com ([212.103.203.10]:55944 "EHLO mail.micronovasrl.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932265AbeFFJwD (ORCPT ); Wed, 6 Jun 2018 05:52:03 -0400 Authentication-Results: mail.micronovasrl.com (amavisd-new); dkim=pass reason="pass (just generated, assumed good)" header.d=micronovasrl.com From: Giulio Benetti Cc: matwey.kornilov@gmail.com, Giulio Benetti , Andy Shevchenko , Greg Kroah-Hartman , Jiri Slaby , Joshua Scott , Stefan Potyra , Ed Blake , linux-serial@vger.kernel.org (open list:SERIAL DRIVERS), linux-kernel@vger.kernel.org (open list) Subject: [PATCH 2/4] serial: 8250_dw: allow enable rs485 at boot time Date: Wed, 6 Jun 2018 11:51:51 +0200 Message-Id: <20180606095156.72628-1-giulio.benetti@micronovasrl.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: References: To: unlisted-recipients:; (no To-header on input) 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) { -- 2.17.1