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Wed, 28 Jan 2026 08:09:09 -0800 (PST) X-Received: by 2002:a05:7300:3707:b0:2ae:601f:f4f7 with SMTP id 5a478bee46e88-2b78da68e23mr3217827eec.40.1769616549271; Wed, 28 Jan 2026 08:09:09 -0800 (PST) Received: from [192.168.1.3] ([122.177.244.194]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2b7a1addafesm3208959eec.25.2026.01.28.08.09.05 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 28 Jan 2026 08:09:08 -0800 (PST) Message-ID: Date: Wed, 28 Jan 2026 21:39:02 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 1/2] arm64: dts: qcom: talos: Flatten usb controller nodes To: Konrad Dybcio Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Dmitry Baryshkov References: <20260128062720.437712-1-krishna.kurapati@oss.qualcomm.com> <20260128062720.437712-2-krishna.kurapati@oss.qualcomm.com> <2324aa41-6b2a-41ca-9f97-7a5b5e0f575f@oss.qualcomm.com> Content-Language: en-US From: Krishna Kurapati In-Reply-To: <2324aa41-6b2a-41ca-9f97-7a5b5e0f575f@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTI4MDEzMyBTYWx0ZWRfX5+c3jdHIxZsV mivgKXbDvi2JFsnyT+RyFZZ/mB56vS6rhUdp/QWElgO4yP1vqGqSZz76C0jbIAnoM+talSE0W39 VZB9eZkYY4rRsPPF05vwap01scN8rWiv/UiLvPp/+JHJuCwNUW+mDYitLkzSi+st2I91PMIXQHp iTt78b5UtaaSUTrDaprD99N9rgTKm60rEfo1yDBRDu3jCdl+bt/FY7ixQQ8idhjSjrHsAK/q6DX J2un3EQnxWvl6Qyk89HacXXJd68C+lQzMLiLSRtE8BGkZchS6baZEZUdUn+JWl+uPDZLL5IB7P6 rp5b32heHtvWiq+qtnvVV1U0ihqNXoXqa/u395VoIBIpgjj7CYh+67dUCt6jYN33w6jOpITZZNG vZx+CWwTboSvgtrt5qspGEja3RqhLZpnPeTwJTyXhlwjWOd301WfxmHbiEC4wFVjarA29AAgRqe 6htqSVVo6jbsVkm6VSQ== X-Authority-Analysis: v=2.4 cv=XfWEDY55 c=1 sm=1 tr=0 ts=697a34a7 cx=c_pps a=PfFC4Oe2JQzmKTvty2cRDw==:117 a=ni4xaUQv+UexsgkVNKbnGA==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=AyQCSZuuk-tLLIqlLXYA:9 a=QEXdDO2ut3YA:10 a=6Ab_bkdmUrQuMsNx7PHu:22 X-Proofpoint-GUID: XROB8Rwcuf2tlkglS9mEBAkoG3R9EAes X-Proofpoint-ORIG-GUID: XROB8Rwcuf2tlkglS9mEBAkoG3R9EAes X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-01-28_03,2026-01-28_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 clxscore=1015 impostorscore=0 phishscore=0 priorityscore=1501 suspectscore=0 adultscore=0 bulkscore=0 lowpriorityscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2601280133 On 1/28/2026 4:01 PM, Konrad Dybcio wrote: > On 1/28/26 7:27 AM, Krishna Kurapati wrote: >> Flatten usb controller nodes and update to using latest bindings >> and flattened driver approach. >> >> Reviewed-by: Dmitry Baryshkov >> Signed-off-by: Krishna Kurapati >> --- > > Have you checked whether this brings about the same crash-on-suspend > issue as it does on Hamoa? > > https://lore.kernel.org/linux-arm-msm/71c15a78-7a50-4913-b677-e5308fcabfad@packett.cool/ > Hi Konrad, Yes, I did check system suspend use case after flattening and there is no crash seen. The only issue I observed (both before and after flattening) is that waking up from bus suspend, there is an enumeration failure on second port in host mode, and an xHCI CMD_RUN timeout occurs. The issue is gone if we keep controller GDSC flags as RET_ON (not the right solution though). But this issue has nothing to do with flattening. I will sync up with clocks team and try to fix that host mode issue. Regards, Krishna,