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Tue, 23 Jan 2024 16:53:38 +0000 (GMT) Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA04.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 40NGrb8D002860 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 23 Jan 2024 16:53:37 GMT Received: from [10.110.18.75] (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 15.2.1118.40; Tue, 23 Jan 2024 08:53:37 -0800 Message-ID: Date: Tue, 23 Jan 2024 08:53:36 -0800 Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH RFC v2 1/8] bus: mhi: host: add mhi_power_down_no_destroy() Content-Language: en-US To: Manivannan Sadhasivam , Baochen Qiang CC: Kalle Valo , , , , , References: <20231130054250.GC3043@thinkpad> <87v89cq1ci.fsf@kernel.org> <20231220163209.GJ3544@thinkpad> <20231220165113.GK3544@thinkpad> <7a31696b-cf2b-48c0-bad3-327e9ce47172@quicinc.com> <20240104060904.GB3031@thinkpad> <20240122062411.GA3176@thinkpad> <9ac258d7-8a57-4071-af8d-5b07d776135b@quicinc.com> <20240122130947.GD3176@thinkpad> <1d9b8bc6-b1ef-4568-a265-b4e69bf90aa9@quicinc.com> <20240123153658.GF19029@thinkpad> From: Jeff Johnson In-Reply-To: <20240123153658.GF19029@thinkpad> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) 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: eCllR30zNzo_rif4ilcY1wiLz309yY1t X-Proofpoint-ORIG-GUID: eCllR30zNzo_rif4ilcY1wiLz309yY1t X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-23_09,2024-01-23_02,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1011 malwarescore=0 bulkscore=0 spamscore=0 phishscore=0 mlxscore=0 mlxlogscore=440 impostorscore=0 suspectscore=0 lowpriorityscore=0 priorityscore=1501 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2311290000 definitions=main-2401230124 On 1/23/2024 7:36 AM, Manivannan Sadhasivam wrote: > Ok. So I am getting the feeling that we need to talk to the PM people to get a > proper solution. Clearly fixing the MHI code is not the right thing to do. We > might need a separate callback that gets registered by the drivers like ath11k > to wait for the dependency drivers to get probed. > > Can you initiate such a discussion? You can write to linux-pm@vger.kernel.org, > "Rafael J. Wysocki" and Pavel Machek . Please also include kernel@quicinc.com since this topic may have ramifications across other Qualcomm technologies that use MHI. /jeff