From mboxrd@z Thu Jan 1 00:00:00 1970 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 7905EECAAA1 for ; Fri, 16 Sep 2022 21:22:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229471AbiIPVWx (ORCPT ); Fri, 16 Sep 2022 17:22:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42478 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229875AbiIPVWs (ORCPT ); Fri, 16 Sep 2022 17:22:48 -0400 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CA792B99D3; Fri, 16 Sep 2022 14:22:45 -0700 (PDT) Received: from pps.filterd (m0279868.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 28GL7HsQ000349; Fri, 16 Sep 2022 21:22:34 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=message-id : date : mime-version : subject : to : cc : references : from : in-reply-to : content-type : content-transfer-encoding; s=qcppdkim1; bh=wUGXXztn75LJ9JzABXVfmagNY50hkoudX/9OXz0xTtI=; b=ma2nOq4uWKBObq8t367RVebHN78hq6gtvfOguoeeWdIPjvuHXOKb1bYGUCOhVhQaxWHr 8coY/1B+o2dudKsitcWnPMgYamefTWEFS5vJ04ijy1ZBmjQdyOsnSVLHbOTHudPT2X/a o8+nrCaX86o/HhzUYfEByFEjv/N/vZDJol3TSRP37rqJpVp8xbNVZB0UNz8nl512dFzF K3rcsq0xqGlliwl/aeIPk44qDolGg5sOKtPM4MeD6YaxQPj5Mhfbo812w6jXzcA+guMC 3vXzG+bhKo0x5IOUxifnrvfN3NusmlXbMimEMNLq5w/BHejCsVIcfPR3zfxSuIAHnppt 9w== Received: from nalasppmta03.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3jm94mc6ch-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 16 Sep 2022 21:22:34 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA03.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 28GLHWNL028408 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 16 Sep 2022 21:17:32 GMT Received: from [10.110.7.80] (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 15.2.986.29; Fri, 16 Sep 2022 14:17:31 -0700 Message-ID: <07b39c97-30be-4e82-044e-51b0d98a5197@quicinc.com> Date: Fri, 16 Sep 2022 14:17:30 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.2.2 Subject: Re: [PATCH v2 5/7] drm/msm/dp: Implement hpd_notify() Content-Language: en-US To: Bjorn Andersson , Rob Clark , Abhinav Kumar , "Dmitry Baryshkov" CC: Rob Herring , Krzysztof Kozlowski , Stephen Boyd , Kuogee Hsieh , Sankeerth Billakanti , , , , , References: <20220916200028.25009-1-quic_bjorande@quicinc.com> <20220916200028.25009-6-quic_bjorande@quicinc.com> From: Jeff Johnson In-Reply-To: <20220916200028.25009-6-quic_bjorande@quicinc.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit 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-GUID: z8LfGOf-g9-UyVPMTPOXs_MrIm4FTRHI X-Proofpoint-ORIG-GUID: z8LfGOf-g9-UyVPMTPOXs_MrIm4FTRHI X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.895,Hydra:6.0.528,FMLib:17.11.122.1 definitions=2022-09-16_14,2022-09-16_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=539 impostorscore=0 suspectscore=0 malwarescore=0 priorityscore=1501 lowpriorityscore=0 adultscore=0 mlxscore=0 clxscore=1011 spamscore=0 bulkscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2209130000 definitions=main-2209160152 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 9/16/2022 1:00 PM, Bjorn Andersson wrote: > From: Bjorn Andersson > > The DisplayPort controller's hot-plug mechanism is based on pinmuxing a > physical signal no a GPIO pin into the controller. This is not always nit: s/ no / on /? > possible, either because there aren't dedicated GPIOs available or > because the hot-plug signal is a virtual notification, in cases such as > USB Type-C.