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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ba45504379bsm526045966b.42.2026.04.22.04.09.23 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 22 Apr 2026 04:09:24 -0700 (PDT) Message-ID: Date: Wed, 22 Apr 2026 13:09:22 +0200 Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] arm64: dts: qcom: hamoa-iot-evk: Enable retimer on USB0 port To: Prashanth K , Bjorn Andersson , Konrad Dybcio Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Krishna Kurapati , stable@vger.kernel.org References: <20260422093924.2976069-1-prashanth.k@oss.qualcomm.com> <6c2c5fd6-c032-4658-9a15-039c77074c4b@oss.qualcomm.com> <8cb5e28c-1c6e-450e-855b-32491ee73885@oss.qualcomm.com> <3d50f17c-060a-4a1d-b539-1bea9b3e6cd0@oss.qualcomm.com> <79926b02-a892-4e59-b794-e8534136fe07@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <79926b02-a892-4e59-b794-e8534136fe07@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: 1xEx-mZ7QaZASp3Nu01IQGkBx8ug9hWw X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDIyMDEwNiBTYWx0ZWRfX9keU41PEQOqG //EXOPy+FaFbM2NtahB8FgDaApLP+Tk4NdQc2PoFdiDIpaZhC1IoGTHwl9yb4JQ+fZdKE4ZGQCP WW1065LoeLBEVSD0YhRUjvGSmVQ1Fm0U4zWOS/5CGVqg3CcS6cklbN+hHVa5ce5kvUO1P3HujvA eE0t7Ur1cHHgI9S83tV4sdTU+ndZXBoIZGSIy4PQwZDqh0suTDWVsbs18MJypyeJx+qmJ9U/fo3 okBwgUGggznjQDZX76foo4Puu1DD0YhUevTyGuslYKhJABktndGnsq5XY8jFjgy6zrF+/lkj/gr VFziFXzo1xfHxHiU3ORy1Y/b5poZlz4lG1A76+WzBpNxY+1cS+J2g/jtgnvqtY63QyAOW8nNKqI 0TB9IbV+DIHVdXPMXUyTYbIor28/AWQgoPhzU00icCfL4H7W6lkAIpPYqWpHnp58G7Dkon29eyd htk+iDAHu+P0FPi5rRg== X-Authority-Analysis: v=2.4 cv=WKJPmHsR c=1 sm=1 tr=0 ts=69e8ac67 cx=c_pps a=EVbN6Ke/fEF3bsl7X48z0g==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=VwQbUJbxAAAA:8 a=4kRxOmAj_iLeT8xqhkkA:9 a=QEXdDO2ut3YA:10 a=a_PwQJl-kcHnX1M80qC6:22 X-Proofpoint-GUID: 1xEx-mZ7QaZASp3Nu01IQGkBx8ug9hWw X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-04-22_01,2026-04-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 suspectscore=0 spamscore=0 lowpriorityscore=0 impostorscore=0 bulkscore=0 phishscore=0 priorityscore=1501 malwarescore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2604220106 On 4/22/26 1:04 PM, Prashanth K wrote: > > > On 4/22/2026 4:13 PM, Konrad Dybcio wrote: >> On 4/22/26 12:32 PM, Prashanth K wrote: >>> >>> >>> On 4/22/2026 3:56 PM, Konrad Dybcio wrote: >>>> On 4/22/26 11:39 AM, Prashanth K wrote: >>>>> Add the retimer for usb_1_ss0 port (USB0), in order to enable >>>>> super-speed enumeration on that port. >>>>> >>>>> Fixes: c11645afb0e2 ("arm64: dts: qcom: Add base HAMOA-IOT-EVK board") >>>>> Cc: stable@vger.kernel.org >>>> >>>> This is a feature addition, not a fix >>>> >>>> [...] >>>> >>> Sure. >>>>> + ports { >>>>> + #address-cells = <1>; >>>>> + #size-cells = <0>; >>>>> + >>>>> + port@0 { >>>>> + reg = <0>; >>>>> + >>>>> + retimer_ss0_ss_out: endpoint { >>>>> + remote-endpoint = <&pmic_glink_ss0_ss_in>; >>>>> + }; >>>>> + }; >>>>> + >>>>> + port@1 { >>>>> + reg = <1>; >>>>> + >>>>> + retimer_ss0_ss_in: endpoint { >>>>> + remote-endpoint = <&usb_1_ss0_qmpphy_out>; >>>>> + }; >>>>> + }; >>>>> + >>>> >>>> Stray \n, but you should really have a @2 port here as well. >>>> >>>> Konrad >>> Can we ad port@2 and leave it empty? >> >> Why would you? Just connect it to port2 of the connector under pmic-glink >> >> Konrad > > Because the port@2 of pmic-glink (pmic_glink_ss0_sbu) is already > connected to usb-1-ss0-sbu-mux (onn,fsusb42). This is different compared > to other connectors. Are both the SBU mux and the Parade retimer present on board? The former is redundant since the retimer already has a superset of its functionality, so that sounds rather odd. Konrad