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[2620:137:e000::1:20]) by mx.google.com with ESMTP id c2-20020a170906170200b006e010267605si4735353eje.349.2022.04.21.12.22.40; Thu, 21 Apr 2022 12:23:04 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@foss.st.com header.s=selector1 header.b=slpjVlI6; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=foss.st.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350202AbiDSI47 (ORCPT + 99 others); Tue, 19 Apr 2022 04:56:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52318 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1350182AbiDSI4z (ORCPT ); Tue, 19 Apr 2022 04:56:55 -0400 Received: from mx07-00178001.pphosted.com (mx07-00178001.pphosted.com [185.132.182.106]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E69AE22BC4; Tue, 19 Apr 2022 01:54:12 -0700 (PDT) Received: from pps.filterd (m0288072.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 23J2apKu015687; Tue, 19 Apr 2022 10:53:49 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding : content-type; s=selector1; bh=eHr3F+Xv2EITeA1KgzRFAN3eKCVv1CZzksOJ3A+aaSg=; b=slpjVlI6SYeJa4otSGHIrOyP2hdTU0VBH45RXqIcEDX+NHtn/LA4Wo9z4kgn9nq3tRp/ bglEWi0h26kYRGAIWgb5R2wEY0UEB1wlosDDi/MQZW/QSyO4UctCr6fQ7kVdN9isiVMA gTjEHU5NL/VhDIPeYhfxpS+wIz0D7jDWRpxzfiA+5fVMINS0r5dOdObp/gPmOvxCKy96 71L3z6GuRfIQT3pfEsTv8PPQ8vQ5cvkfAOMOK+4Hb4GPJsK0ZDWrogxQPp7iV5b47kbK 62kiXRhmjrRs3k5LvN6QcPjW+yJg8U2aFj0wgPE8zefW82qrKvulrw1l/Lb7sQ1pd2HC hg== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 3ffpqdmvq3-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 19 Apr 2022 10:53:49 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id AEC0110002A; Tue, 19 Apr 2022 10:53:46 +0200 (CEST) Received: from Webmail-eu.st.com (sfhdag2node2.st.com [10.75.127.5]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id A749C2053D3; Tue, 19 Apr 2022 10:53:46 +0200 (CEST) Received: from localhost (10.75.127.49) by SFHDAG2NODE2.st.com (10.75.127.5) with Microsoft SMTP Server (TLS) id 15.0.1497.26; Tue, 19 Apr 2022 10:53:46 +0200 From: Valentin Caron To: Greg Kroah-Hartman CC: Geert Uytterhoeven , Jiri Slaby , Maxime Coquelin , Alexandre Torgue , Valentin Caron , , , , Subject: [PATCH V3 0/3] serial: stm32: add earlycon and polling mode Date: Tue, 19 Apr 2022 10:53:27 +0200 Message-ID: <20220419085330.1178925-1-valentin.caron@foss.st.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.75.127.49] X-ClientProxiedBy: SFHDAG2NODE1.st.com (10.75.127.4) To SFHDAG2NODE2.st.com (10.75.127.5) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.858,Hydra:6.0.486,FMLib:17.11.64.514 definitions=2022-04-19_03,2022-04-15_01,2022-02-23_01 X-Spam-Status: No, score=-2.7 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,RCVD_IN_DNSWL_LOW,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org - Add support of early console and polling mode in stm32-usart driver. - Avoid a possible infinite loop in putchar function. Changes since v2: - Do not add "stm32" parameter in kernel-parameters.txt Changes since v1: - Fix warning "unused variable 'ret'" Valentin Caron (3): serial: stm32: remove infinite loop possibility in putchar function serial: stm32: add KGDB support serial: stm32: add earlycon support drivers/tty/serial/Kconfig | 1 + drivers/tty/serial/stm32-usart.c | 100 +++++++++++++++++++++++++++++-- drivers/tty/serial/stm32-usart.h | 2 + 3 files changed, 98 insertions(+), 5 deletions(-) -- 2.25.1