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Fri, 06 Nov 2026 07:06:32 -0800 (PST) Received: from [192.168.226.72] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c4d487be8aasm36689066b.15.2026.11.06.07.06.29 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 06 Nov 2026 07:06:31 -0800 (PST) Message-ID: <23b5c705-cd55-4c0c-9c95-c61afb286416@oss.qualcomm.com> Date: Fri, 6 Nov 2026 16:06:28 +0100 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/3] phy: qcom: carry live SS-link state without growing enum phy_mode To: Tapas Rana , Vinod Koul , Thinh Nguyen , Greg Kroah-Hartman Cc: Neil Armstrong , Manivannan Sadhasivam , Dmitry Baryshkov , Abel Vesa , Wesley Cheng , Esteban Urrutia , Loic Poulain , Krishna Kurapati , Ronak Raheja , Faisal Hassan , Krishna Chaitanya Chundru , prashanth.k@oss.qualcomm.com, linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org References: <20261106082716.128968-1-tapas.rana@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20261106082716.128968-1-tapas.rana@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=PLeaavqC c=1 sm=1 tr=0 ts=6aedecff cx=c_pps a=+D9SDfe9YZWTjADjLiQY5g==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=zJRp6_cAMcgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=UEx5U1dda6wf6Co_AVQA:9 a=QEXdDO2ut3YA:10 a=vmgOmaN-Xu0dpDh8OwbV:22 X-Proofpoint-Spam-Info: AW1haW4tMjYxMTA2MDA1OSBTYWx0ZWRfX/I9WR3dDc7Ko 11LEZuNjs1aKB68FoujpGCBzhlJ7wbet+Bj56E9v3wP4lVAwKfNRTteaaKdmeZrLWO5D0FDBcnQ ovp1DCp3OBeRyp072BuZboIcWEIXcYU= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMTA2MDA1OSBTYWx0ZWRfX8E/TJ17gL/i2 +cv9VEGnR07SQKmGts7MGP5UvVN6Fc2CH8Yi8c6DSGZ/Xk/ZnnoCd1mBfApiYQuUV06rmkuBLlO m7kGmaS4M0y2XoKY+HRATa6RiIYpHu0fIzwtJ+Bu7K9UF+/MzLLMgIfOWYMa6y4+ecZdajLF2Vw rAQCnwH7NvQm4pr6olTy3A+ZD1NdpYRnW45GEcQD9oWHQvWIWeXDiHhJYJSiep+K6TW8SAjSVNy KRFVtpu6snuPb0Eh9xhSsrweUipIrrYZd6EyoH0XUw45zRiYTvRs7TkAFs/82zIVT9PYrN1QU+H ufKQSfgYBG8yyRO7ZKCa5MtUsQyjj39SDeCV9Cv5u1MiBoc4kp6IcZAm51OcR2hpH3CQisZsFLC 2JDqqlXtI8CSpLIDmzgF0H7/wpj1XNqOeLEF9obMyLuvknAvqYFNAPH1BhUO93HmTQbtN2fmSJ6 45SQbP3I7w4kmhUVe4g== X-Proofpoint-GUID: 4NKmJBqlqCO2xoIK9-mfgM9jCu2n7Ok8 X-Proofpoint-ORIG-GUID: 4NKmJBqlqCO2xoIK9-mfgM9jCu2n7Ok8 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.138,FMLib:17.12.100.49 definitions=2026-11-06_05,2026-11-06_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 impostorscore=0 malwarescore=0 clxscore=1015 bulkscore=0 priorityscore=1501 spamscore=0 phishscore=0 adultscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2611040001 definitions=main-2611060059 On 11/6/26 9:27 AM, Tapas Rana wrote: > QMP PHY drivers always enable receiver detection (ARCVR_DTCT_EN) in > autonomous mode, and additionally enable LFPS detection (ALFPS_DTCT_EN) > when a SuperSpeed link is present; otherwise they fall back to > receiver-detect event selection (ARCVR_DTCT_EVENT_SEL). This choice is > made by comparing phy_mode against > PHY_MODE_USB_HOST_SS/PHY_MODE_USB_DEVICE_SS. However, dwc3 core only > calls phy_set_mode()/phy_set_mode_ext() with the base > PHY_MODE_USB_HOST or PHY_MODE_USB_DEVICE, never the _SS/_HS/_FS/_LS > submodes. Without much more insight, this sounds like the place to fix it then Konrad