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="d/9Z37iz" DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 2D24E60555 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 S932483AbeFFJuF (ORCPT + 25 others); Wed, 6 Jun 2018 05:50:05 -0400 Received: from mail.micronovasrl.com ([212.103.203.10]:55514 "EHLO mail.micronovasrl.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932378AbeFFJuC (ORCPT ); Wed, 6 Jun 2018 05:50:02 -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 , Greg Kroah-Hartman , Jiri Slaby , Andy Shevchenko , Matthias Brugger , Kees Cook , Allen Pais , Sean Young , linux-serial@vger.kernel.org (open list:SERIAL DRIVERS), linux-kernel@vger.kernel.org (open list) Subject: [PATCH 2/4] serial: 8250: Copy mctrl when register port. Date: Wed, 6 Jun 2018 11:49:37 +0200 Message-Id: <20180606094942.71190-1-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 RS485 can modify mctrl on startup, especially when RTS_AFTER_SEND is on TIOCM_RTS is set, then need to keep it set when registering port. Copy mctrl to new port too. Signed-off-by: Giulio Benetti --- drivers/tty/serial/8250/8250_core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c index c8c2b260c681..c8e62fbd6570 100644 --- a/drivers/tty/serial/8250/8250_core.c +++ b/drivers/tty/serial/8250/8250_core.c @@ -993,6 +993,7 @@ int serial8250_register_8250_port(struct uart_8250_port *up) uart->port.unthrottle = up->port.unthrottle; uart->port.rs485_config = up->port.rs485_config; uart->port.rs485 = up->port.rs485; + uart->port.mctrl = up->port.mctrl; uart->dma = up->dma; uart->em485 = up->em485; -- 2.17.1