From patchwork Wed May 10 20:31:03 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kuogee Hsieh X-Patchwork-Id: 13237224 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 9B152C77B7D for ; Wed, 10 May 2023 20:32:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230016AbjEJUcA (ORCPT ); Wed, 10 May 2023 16:32:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56162 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229500AbjEJUb7 (ORCPT ); Wed, 10 May 2023 16:31:59 -0400 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 047214C12; Wed, 10 May 2023 13:31:28 -0700 (PDT) Received: from pps.filterd (m0279870.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 34AGSRB2009700; Wed, 10 May 2023 20:31:18 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : mime-version : content-type; s=qcppdkim1; bh=VT89NrsEZk2EiYORvXQxh2tzZli3aAytU6kc3hMBy8Q=; b=fF7psbPd7YuUxLI903gl2nARsvyBPoN5AiYuBDK0/dvHmClHMHoJ0BkLreH+CMO1+8gJ 7uZHbwOfyMOoH5lCpVs57zwYDZqe55e8zdXo+awdI63LmdxaQeQt0MRZHax3q92uG79P id83i5IcXysD6ektGqNJ4UB6hatB00Y/hAtH6D+2ATPw3qUCKFseJYULhazIS4T3OHb7 syoiuN4iJHmXBOXNsETLFM5v7gpXGt4UExK//Yr3CyfU5YU2vOmuY4YsR7eKs2p1Qe5s jANJxrWjoJJP28WPF5gwEP3l1Zf2urw5wku8OqRG76uLFpFp5mXMTRTIux5ezGaD1hIo 6A== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3qgett0ewg-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 10 May 2023 20:31:17 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 34AKVGwQ024529 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 10 May 2023 20:31:16 GMT Received: from khsieh-linux1.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.42; Wed, 10 May 2023 13:31:15 -0700 From: Kuogee Hsieh To: , , , , , , , , , , CC: Kuogee Hsieh , , , , , , , Subject: [PATCH v1 0/2] enable HDP plugin/unplugged interrupts to hpd_enable/disable Date: Wed, 10 May 2023 13:31:03 -0700 Message-ID: <1683750665-8764-1-git-send-email-quic_khsieh@quicinc.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: eltU65YRGi7lTe9XlpHQ9zJLCc93tY7v X-Proofpoint-GUID: eltU65YRGi7lTe9XlpHQ9zJLCc93tY7v X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-05-10_04,2023-05-05_01,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=362 priorityscore=1501 bulkscore=0 impostorscore=0 mlxscore=0 lowpriorityscore=0 spamscore=0 clxscore=1015 phishscore=0 adultscore=0 suspectscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2304280000 definitions=main-2305100166 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org There is bug report on exteranl DP display does not work. This patch add below two patches to fix the problem. 1) enable HDP plugin/unplugged interrupts to hpd_enable/disable 2) add mutex to protect internal_hpd against race condition between different threads Kuogee Hsieh (2): drm/msm/dp: enable HDP plugin/unplugged interrupts to hpd_enable/disable drm/msm/dp: add mutex to protect internal_hpd against race condition between different threads drivers/gpu/drm/msm/dp/dp_display.c | 37 +++++++++++++++++++++++-------------- 1 file changed, 23 insertions(+), 14 deletions(-)