From patchwork Tue Jul 25 11:48:05 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vijaya Krishna Nivarthi X-Patchwork-Id: 706252 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B625FC0015E for ; Tue, 25 Jul 2023 11:48:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230356AbjGYLsf (ORCPT ); Tue, 25 Jul 2023 07:48:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56004 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235125AbjGYLsY (ORCPT ); Tue, 25 Jul 2023 07:48:24 -0400 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1420410E2; Tue, 25 Jul 2023 04:48:24 -0700 (PDT) Received: from pps.filterd (m0279862.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 36PAYktD019048; Tue, 25 Jul 2023 11:48:19 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id; s=qcppdkim1; bh=clDcQqjrv+FXeXzp9dqtQs5Snq+9ZGR37NVMAlAyCgw=; b=kIFh256eTdoyZzhDtphEWLmJf3mO7QNU5kTvftjTRha3dkK3WmqNGkyUJaXf+TVpu1I3 S591jkbvraA4SCJb6CKEu0ohGZ5yhX7/2kZmB4FkDYWMm+0YE1kz4zFKAQibEdiEQEWX l2EgkjerBXyPRINQiHcOYinl7DLcvusIP6YcbohTVeMDdVNO11EvMgAxxZSAupH0Z//m 9AFfaMjZYBfYGAgMF6ArL2DgmwrPakkGrSGmNg6g6mZWFjyMoTDPVJv9ogVEhKLvnf7+ Ua8DCJmh5a4zu+7lGOKOtpJ04yMZimD6I8oAnwNKAp7la5s16BQHhFh4wosVrPoFHp1R 9g== Received: from apblrppmta01.qualcomm.com (blr-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.18.19]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3s1u3taayd-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 25 Jul 2023 11:48:19 +0000 Received: from pps.filterd (APBLRPPMTA01.qualcomm.com [127.0.0.1]) by APBLRPPMTA01.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTP id 36PBmFHn008429; Tue, 25 Jul 2023 11:48:16 GMT Received: from pps.reinject (localhost [127.0.0.1]) by APBLRPPMTA01.qualcomm.com (PPS) with ESMTPS id 3s086kv0xy-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Tue, 25 Jul 2023 11:48:15 +0000 Received: from APBLRPPMTA01.qualcomm.com (APBLRPPMTA01.qualcomm.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 36PBmFbo008424; Tue, 25 Jul 2023 11:48:15 GMT Received: from hu-sgudaval-hyd.qualcomm.com (hu-vnivarth-hyd.qualcomm.com [10.213.111.166]) by APBLRPPMTA01.qualcomm.com (PPS) with ESMTP id 36PBmFE1008423; Tue, 25 Jul 2023 11:48:15 +0000 Received: by hu-sgudaval-hyd.qualcomm.com (Postfix, from userid 3994820) id A6E743434; Tue, 25 Jul 2023 17:18:14 +0530 (+0530) From: Vijaya Krishna Nivarthi To: agross@kernel.org, andersson@kernel.org, konrad.dybcio@linaro.org, broonie@kernel.org, linux-arm-msm@vger.kernel.org, linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org Cc: quic_msavaliy@quicinc.com, dianders@chromium.org, mka@chromium.org, swboyd@chromium.org, quic_vtanuku@quicinc.com, dan.carpenter@linaro.org, Vijaya Krishna Nivarthi Subject: [PATCH 0/4] spi: spi-qcom-qspi: Follow-up patches to DMA mode support Date: Tue, 25 Jul 2023 17:18:05 +0530 Message-Id: <1690285689-30233-1-git-send-email-quic_vnivarth@quicinc.com> X-Mailer: git-send-email 2.7.4 X-QCInternal: smtphost X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: fWeRQ_8UFhZKKIxNLeebMjjvl2G24nOb X-Proofpoint-ORIG-GUID: fWeRQ_8UFhZKKIxNLeebMjjvl2G24nOb X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-07-25_06,2023-07-25_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 lowpriorityscore=0 mlxlogscore=636 clxscore=1011 impostorscore=0 suspectscore=0 spamscore=0 phishscore=0 adultscore=0 bulkscore=0 malwarescore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2307250103 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org This patch series adds 4 follow-up changes to DMA mode support. 1. Handles write failure in some cases by averting a race condition 2. Handles static checker warning 3. Adds a memory barrier to avoid a possible data out of sync case 4. Book keeping change Vijaya Krishna Nivarthi (4): spi: spi-qcom-qspi: Ignore disabled interrupts' status in isr spi: spi-qcom-qspi: Use GFP_ATOMIC flag while allocating for descriptor spi: spi-qcom-qspi: Call dma_wmb() after setting up descriptors spi: spi-qcom-qspi: Add DMA_CHAIN_DONE to ALL_IRQS drivers/spi/spi-qcom-qspi.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-)