Received: by 2002:a05:6a10:8c0a:0:0:0:0 with SMTP id go10csp8205237pxb; Fri, 19 Feb 2021 09:55:24 -0800 (PST) X-Google-Smtp-Source: ABdhPJxXW3pGxHmEIcLRBn5ErsrDxXHaKmA4kTCONH4BXMBB7IDFu18pshG7Ye0iHxm5x0HgELXz X-Received: by 2002:a05:6402:254b:: with SMTP id l11mr10251573edb.202.1613757324093; Fri, 19 Feb 2021 09:55:24 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1613757324; cv=none; d=google.com; s=arc-20160816; b=Sg/XiK4yvTLpMT1K64DnOjzPHPPeoiK+jJqv46rB2iE1+2DX6JOMjdp7NV8tBuZ9Vl dt4zV/CUduB8A8QfCi1WzTMYeedT3mFkXGKWq3evzp4sYowaDCoxCXwPm8HeAhAOMGac gskM2hshb3bXeyCaSPW9Qs4YET6j4iEDncfhCLgHsXsaTPNr+j6sCSFwhKRMh6xW4hum dAV0UDIn+niWKbBnXhwIInSP7IApO6u78ZlBhS00aI3wUSBsNS9WLJ7bA1SCeDcCe6kg Rc9ElCcKALR0Cci6bk+W5WCMnqYOgpn3fe+9heZ2XtUo7f2Oh37KaVmzWrNk4Z9nXGPe bXeQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:references:in-reply-to:message-id :date:subject:cc:to:from:dkim-signature; bh=LHZ6z1XwXrc4VoJ+rrzL0PIbM30spCyejAK4kL/Xd4E=; b=TYcWC1v0JXZabIihOk8Ohdov8SL6BW+AQtD9rwsTjB9pccJXnh5mzFD6EZ8boTb8rE JPJV0i9vGPwo60u5GqItdz/6Hhk/YYQ+YgUIQOs+9YtfF1vGRyfRE4QH38Qm6kbyu4lx ssYeScPDe59WWuHXBrwVfpg47t1/ylPWwGsc/hXJ+0bVh1z++HJ9t6+hDV9fRL+uVzo5 6fDW4hQ9Ucck6rjB7nRd1qgwpjgc+2fO+KJdc9o8pYhvcLy4j8zMeitnL2gVeIuAB6/d h4IMkwLW4DHp6j+5leSJr8lVUDWc48KZ9mXfNdWiPOBv8Me+A0qrW+3XYPC4rola2fEL d00g== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@foss.st.com header.s=selector1 header.b=caFKuchY; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=foss.st.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id z12si2297087ejc.694.2021.02.19.09.54.51; Fri, 19 Feb 2021 09:55:24 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@foss.st.com header.s=selector1 header.b=caFKuchY; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 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 S229849AbhBSRvf (ORCPT + 99 others); Fri, 19 Feb 2021 12:51:35 -0500 Received: from mx07-00178001.pphosted.com ([185.132.182.106]:37782 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230019AbhBSRsj (ORCPT ); Fri, 19 Feb 2021 12:48:39 -0500 Received: from pps.filterd (m0241204.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 11JHkUH2018180; Fri, 19 Feb 2021 18:47:48 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=selector1; bh=LHZ6z1XwXrc4VoJ+rrzL0PIbM30spCyejAK4kL/Xd4E=; b=caFKuchYyQf/p+LDXMDUcNZ/htp1hgDgIAJGUTQPmhWf+2AOSlwZeQAoNgz3OD9g1+zj Fetm4W9LhURxtsU7TQtXRVWxNiNISaEWhRrRfgNxZKgtZA77Il5psgEbluLDGpLLTrV5 U34kL0crPlWlNKX68BC88BUrvt6GPdyS9vlLne7eMrzx3Yr27jcW0iiZiRBUzlri45gj v2/nZnprS7WlY0hurgiYo372Bhe2QLyEyX7uBK57gXaCPxLhnJExklRiplXuSZy8iJ+V sCkKXYX+neIa9hpuR0iSZ3aUkCgCTMk/dleFlqanPn3bzs4wHdF6EsJzp3iHTx4KcYra gg== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 36p707550x-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 19 Feb 2021 18:47:48 +0100 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id F354C100034; Fri, 19 Feb 2021 18:47:47 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag2node3.st.com [10.75.127.6]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id E912B25F3FC; Fri, 19 Feb 2021 18:47:47 +0100 (CET) Received: from localhost (10.75.127.44) by SFHDAG2NODE3.st.com (10.75.127.6) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Fri, 19 Feb 2021 18:47:47 +0100 From: Erwan Le Ray To: Greg Kroah-Hartman , Jiri Slaby , Maxime Coquelin , Alexandre Torgue CC: , , , , Erwan Le Ray , Fabrice Gasnier , Valentin Caron Subject: [PATCH 08/13] serial: stm32: fix tx dma completion, release channel Date: Fri, 19 Feb 2021 18:47:31 +0100 Message-ID: <20210219174736.1022-9-erwan.leray@foss.st.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210219174736.1022-1-erwan.leray@foss.st.com> References: <20210219174736.1022-1-erwan.leray@foss.st.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.75.127.44] X-ClientProxiedBy: SFHDAG3NODE3.st.com (10.75.127.9) To SFHDAG2NODE3.st.com (10.75.127.6) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.369,18.0.761 definitions=2021-02-19_08:2021-02-18,2021-02-19 signatures=0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch add a proper release of dma channels when completing dma tx. Fixes: 3489187204eb ("serial: stm32: adding dma support") Signed-off-by: Erwan Le Ray diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c index 4ba164820904..7da16d468b84 100644 --- a/drivers/tty/serial/stm32-usart.c +++ b/drivers/tty/serial/stm32-usart.c @@ -292,6 +292,7 @@ static void stm32_usart_tx_dma_complete(void *arg) struct stm32_port *stm32port = to_stm32_port(port); struct stm32_usart_offsets *ofs = &stm32port->info->ofs; + dmaengine_terminate_async(stm32port->tx_ch); stm32_usart_clr_bits(port, ofs->cr3, USART_CR3_DMAT); stm32port->tx_dma_busy = false; -- 2.17.1