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Tue, 22 Sep 2026 21:40:46 -0700 (PDT) X-Received: by 2002:a05:7022:6984:b0:142:d676:146a with SMTP id a92af1059eb24-144f90a43camr2613967c88.9.1790138445828; Tue, 22 Sep 2026 21:40:45 -0700 (PDT) Received: from [192.168.1.132] ([172.88.17.160]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-33e939fe502sm2685952eec.2.2026.09.22.21.40.44 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 22 Sep 2026 21:40:45 -0700 (PDT) Message-ID: <07e73495-ac4e-42a6-b5a3-5eb11021d7fb@oss.qualcomm.com> Date: Tue, 22 Sep 2026 21:40:39 -0700 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 v8 8/8] arm64: dts: qcom: kodiak: Desribe EUD UTMI routing and connector mapping To: Konrad Dybcio , Bjorn Andersson , Conor Dooley , Greg Kroah-Hartman , Konrad Dybcio , Krzysztof Kozlowski , Rob Herring Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260912225301.3396556-1-elson.serrao@oss.qualcomm.com> <20260912225301.3396556-9-elson.serrao@oss.qualcomm.com> <8daa32e6-f140-44d1-a2d2-c475d8a5959c@oss.qualcomm.com> Content-Language: en-US From: Elson Serrao In-Reply-To: <8daa32e6-f140-44d1-a2d2-c475d8a5959c@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: 7uLnSguyQdZa58k8-G6t7LNPtSJWHVHv X-Proofpoint-Spam-Info: AW1haW4tMjYwOTIzMDAxOCBTYWx0ZWRfX1DghG+Zt0+fQ NoAH8mLTWFiML2vCCks6VEeA9yWnzPKVnHJWL77PizGPHeRJrhIbAQ5kI457OQxaXCdLQWBNKAG Fnmig6finxr3pR2q4OrFtLuWWemXcDI= X-Authority-Analysis: v=2.4 cv=Zsh4uN7G c=1 sm=1 tr=0 ts=6ab3584f cx=c_pps a=JYo30EpNSr/tUYqK9jHPoA==:117 a=p3NwzfejtmCMKWTc25r7/Q==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=EUspDBNiAAAA:8 a=QD3PrJr-WEZcEFCR36sA:9 a=QEXdDO2ut3YA:10 a=Fk4IpSoW4aLDllm1B1p-:22 X-Proofpoint-ORIG-GUID: 7uLnSguyQdZa58k8-G6t7LNPtSJWHVHv X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTIzMDAxOCBTYWx0ZWRfX6PTHZRwhPiFb dfrk70poejw0nb5DG/EKe+l0CRKxsVbOfZcSx1UujOx1LK/YEb9zT9SygeQX0bnrnqJVW0EHkjo xfGo22Yn02xnECHl8IkBE7RqBENlG45hu4vb+NL+3vFW6lxSWEgVu+/q/hJrGfmWUunEFPHlU7k KazuMlRygvDEcg0wdy1n5RNzBe186ZARI/cZalzMSGqiXa+Jdl89CagoXEkMimSxFI9nr6pNoEJ iXR92nTuA7Z+aOfMYtr9NoBN2lyxk2+N/lX3zhbqTGlAR6G+UznK1GouprzP7jwTBqQtA7Ayjkl xdofY0m/sRVUxdDD3Z1YpokEGzfzr1rtDg7wwqDjxKMU7Tc6Og9rWj2MKysSS7V33szKT8FLTTW GNSYIDNzsNhqaROKQ6UwXKRtQZln583VM3SvR1PSPC20mKACCNZn5fuQBvkUG3zfbs0qurHXYK8 A6B7X3yrJ1utu8S2G6g== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-23_02,2026-09-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 adultscore=0 clxscore=1015 priorityscore=1501 phishscore=0 bulkscore=0 suspectscore=0 malwarescore=0 spamscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609230018 On 9/21/2026 4:37 AM, Konrad Dybcio wrote: > On 9/13/26 12:53 AM, Elson Serrao wrote: >> The existing EUD description uses a legacy single-path representation >> that assumes uniform UTMI routing. This was sufficient for minimal >> configurations where the USB port operated only in device mode and role >> switching was not considered. >> >> Update the description to explicitly model the topology using eud path >> child node and add a role-switch declaration to reflect role-dependent >> UTMI routing. Also on this SoC, the EUD hardware intercepts only the >> primary UTMI path. So remove the USB endpoint mapping to the secondary >> controller and associate it with the primary controller. >> >> With the intermediate EUD node now in place, update the Kodiak board >> descriptions to map the USB connector endpoint to the EUD instead of >> directly to the USB controller, reflecting the intended hardware >> topology. Enable the EUD by default now that the complete topology is >> described. >> >> Signed-off-by: Elson Serrao >> --- > > [...] > >> diff --git a/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts b/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts >> index f41ad446a39e..b1f1ff6b99e6 100644 >> --- a/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts >> +++ b/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts >> @@ -98,7 +98,7 @@ port@0 { >> reg = <0>; >> >> pmic_glink_hs_in: endpoint { >> - remote-endpoint = <&usb_1_dwc3_hs>; >> + remote-endpoint = <&eud_con>; >> }; >> }; >> >> @@ -1530,10 +1530,6 @@ &usb_1 { >> status = "okay"; >> }; >> >> -&usb_1_dwc3_hs { >> - remote-endpoint = <&pmic_glink_hs_in>; >> -}; >> - >> &usb_1_hsphy { >> vdda-pll-supply = <&vreg_l10c>; >> vdda18-supply = <&vreg_l1c>; >> @@ -1573,3 +1569,7 @@ &wifi { >> qcom,calibration-variant = "Fairphone_5"; >> status = "okay"; >> }; >> + >> +&eud_con { >> + remote-endpoint = <&pmic_glink_hs_in>; >> +}; > > Label references should be sorted alphabetically within a file, > there may be slight deviations because the tooling to enforce > that is still under development, but let's try to not add more > Ack. I will update this in v9 Thanks Elson