Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752601AbdGMPJQ (ORCPT ); Thu, 13 Jul 2017 11:09:16 -0400 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:3603 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752552AbdGMPJO (ORCPT ); Thu, 13 Jul 2017 11:09:14 -0400 From: Bich HEMON To: Greg Kroah-Hartman , Rob Herring , Mark Rutland , Maxime Coquelin , Alexandre TORGUE , "Jiri Slaby" , "linux-serial@vger.kernel.org" , "devicetree@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" CC: Bich HEMON Subject: [PATCH 4/9] serial: stm32: fix pio transmit timeout Thread-Topic: [PATCH 4/9] serial: stm32: fix pio transmit timeout Thread-Index: AQHS++nhPgh783sfjEmezRqkpWJk/Q== Date: Thu, 13 Jul 2017 15:08:28 +0000 Message-ID: <1499958494-19354-5-git-send-email-bich.hemon@st.com> References: <1499958494-19354-1-git-send-email-bich.hemon@st.com> In-Reply-To: <1499958494-19354-1-git-send-email-bich.hemon@st.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.75.127.49] Content-Type: text/plain; charset="utf-8" Content-ID: <177AD9F35409B74E8756A10148D9829A@st.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2017-07-13_08:,, signatures=0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by nfs id v6DF9Q2v028856 Content-Length: 774 Lines: 26 From: Gerald Baeza 100µs was too short for low speed transmission (9600bps) Signed-off-by: Gerald Baeza Signed-off-by: Bich Hemon --- drivers/tty/serial/stm32-usart.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c index a12d79c..ca61bfe 100644 --- a/drivers/tty/serial/stm32-usart.c +++ b/drivers/tty/serial/stm32-usart.c @@ -202,7 +202,7 @@ static void stm32_transmit_chars_pio(struct uart_port *port) ret = readl_relaxed_poll_timeout_atomic(port->membase + ofs->isr, isr, (isr & USART_SR_TXE), - 10, 100); + 10, 100000); if (ret) dev_err(port->dev, "tx empty not set\n"); -- 1.9.1