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Tue, 03 Feb 2026 21:56:49 -0800 (PST) X-Received: by 2002:a05:7300:534f:b0:2b7:f145:a9c with SMTP id 5a478bee46e88-2b832a234ebmr747634eec.34.1770184609345; Tue, 03 Feb 2026 21:56:49 -0800 (PST) Received: from [10.217.219.121] ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-126f503ea14sm1379676c88.16.2026.02.03.21.56.42 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 03 Feb 2026 21:56:48 -0800 (PST) Message-ID: <6a982b56-2f4c-441f-acf7-a8e77ea55600@oss.qualcomm.com> Date: Wed, 4 Feb 2026 11:26:37 +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 v5 4/4] arm64: dts: qcom: lemans-evk: Enable secondary USB controller in host mode To: Dmitry Baryshkov , Swati Agarwal Cc: Greg Kroah-Hartman , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Icenowy Zheng , Matthias Kaehlcke , Mike Looijmans , Stephen Boyd , Jens Glathe , Chaoyi Chen , =?UTF-8?Q?J=2E_Neusch=C3=A4fer?= , Pin-yen Lin , Catalin Popescu , Bjorn Andersson , Konrad Dybcio , linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org References: <20260122092852.887624-1-swati.agarwal@oss.qualcomm.com> <20260122092852.887624-5-swati.agarwal@oss.qualcomm.com> <63fjxtcmpbpna4cuuis332y3p52b6pvh43gyg6m7u5kiwkb2pb@znwfyet4xlpc> Content-Language: en-US From: Krishna Kurapati In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Proofpoint-GUID: gn8ujSImyCVL1umsh2mEbtDxxau4zq7w X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjA0MDA0MiBTYWx0ZWRfX7flnUa+dnrqg NSEER66bMdj1zoG/JxyVjj3jGbOVV9KKEgLouysHGN6Abmb8gm2XZUbF/fpr/CgFzS0YkS2FiSX dIDt3wYqWwPAXnkx0yLI2wvs54NF/GWTj6uLBCmWvJj0bAyX2QRbY2CoLTZ6442RBSdMLB9fyoG 60dRPVOR/Am/wjFTyHYhMeTuUAka7YhGQapaEOSLBz3JrE1Xfi65MjZy2BxYvK4wjxfrYHV9PFt tpbA5SqgrF8ZM4Rpof8Bj4RhXUq7bn64kh/dnxClrc2qWQK7Qf0Zb4Q6AZPRDOV5RQx4wMWIc4+ qtovd72ApIs7hKuMVL1/kRmfkE5wfpUZwaXZbCzkAsxyaMPUl3Va1NDGQMwLvvlcENyQ7uaeOc3 pop1/I1p2A5Gxz7mHRrtaDW3xUSCUYzB3zLMQflNNinv5SVvnNj9IrwwF8vXwb8SvMWdtfvpoJC TXKPMBHCbIS/cmB8/ZQ== X-Authority-Analysis: v=2.4 cv=XI89iAhE c=1 sm=1 tr=0 ts=6982dfa3 cx=c_pps a=wEP8DlPgTf/vqF+yE6f9lg==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=bWLVWEuH_CVqUnXyZ6EA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=bBxd6f-gb0O0v-kibOvt:22 X-Proofpoint-ORIG-GUID: gn8ujSImyCVL1umsh2mEbtDxxau4zq7w 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=2026-02-03_07,2026-02-03_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 impostorscore=0 suspectscore=0 phishscore=0 lowpriorityscore=0 malwarescore=0 adultscore=0 clxscore=1015 spamscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602040042 On 2/4/2026 7:03 AM, Dmitry Baryshkov wrote: > On Tue, Jan 27, 2026 at 10:53:46AM +0530, Swati Agarwal wrote: >> On Thu, Jan 22, 2026 at 4:02 PM Dmitry Baryshkov >> wrote: >>> >>> On Thu, Jan 22, 2026 at 02:58:52PM +0530, Swati Agarwal wrote: >>>> Enable secondary USB controller in host mode on lemans EVK Platform. >>>> >>>> Secondary USB controller is connected to a Genesys Logic USB HUB GL3590 >>>> having 4 ports. The ports of hub that are present on lemans EVK standalone >>>> board are used as follows:- >>>> 1) port-1 is connected to HD3SS3220 Type-C port controller. >>>> 2) port-4 is used for the M.2 E key on corekit. Standard core kit uses UART >>>> for Bluetooth. This port is to be used only if user optionally replaces the >>>> WiFi card with the NFA765 chip which uses USB for Bluetooth. >>>> >>>> Remaining 2 ports will become functional when the interface plus mezzanine >>>> board is stacked on top of corekit: >>>> >>>> 3) port-2 is connected to another hub which is present on the mezz through >>>> which 4 type-A ports are connected. >>>> 4) port-3 is used for the M.2 B key for a 5G card when the mezz is >>>> connected. >>>> >>>> Mark the second USB controller as host only capable and add the HD3SS3220 >>>> Type-C port controller along with Type-c connector for controlling vbus >>>> supply. >>>> >>>> Signed-off-by: Swati Agarwal >>>> --- >>>> arch/arm64/boot/dts/qcom/lemans-evk.dts | 208 ++++++++++++++++++++++++ >>>> 1 file changed, 208 insertions(+) >>>> >>>> diff --git a/arch/arm64/boot/dts/qcom/lemans-evk.dts b/arch/arm64/boot/dts/qcom/lemans-evk.dts >>>> index 074a1edd0334..a549f7fe53a1 100644 >>>> --- a/arch/arm64/boot/dts/qcom/lemans-evk.dts >>>> +++ b/arch/arm64/boot/dts/qcom/lemans-evk.dts >>>> @@ -68,6 +68,45 @@ usb0_con_ss_ep: endpoint { >>>> }; >>>> }; >>>> >>>> + connector-1 { >>>> + compatible = "usb-c-connector"; >>>> + label = "USB1-Type-C"; >>>> + data-role = "host"; >>>> + power-role = "source"; >>>> + >>>> + vbus-supply = <&vbus_supply_regulator_1>; >>>> + >>>> + ports { >>>> + #address-cells = <1>; >>>> + #size-cells = <0>; >>>> + >>>> + port@0 { >>>> + reg = <0>; >>>> + >>>> + usb1_con_ss_ep: endpoint { >>> >>> This contradicts USB-C connector bindings. Why? >>> >>>> + remote-endpoint = <&hd3ss3220_1_in_ep>; >>>> + }; >>>> + }; >>>> + >>>> + port@1 { >>>> + reg = <1>; >>>> + >>>> + usb1_hs_in: endpoint { >>>> + remote-endpoint = <&usb_hub_2_1>; >>>> + }; >>>> + >>>> + }; >>>> + >>>> + port@2 { >>>> + reg = <2>; >>>> + >>>> + usb1_ss_in: endpoint { >>> >>> port@2 is for the SBU signals. It can't be connected to the hub. >>> >>>> + remote-endpoint = <&usb_hub_3_1>; >>>> + }; >>>> + }; >>>> + }; >>>> + }; >>>> + >>>> edp0-connector { >>>> compatible = "dp-connector"; >>>> label = "EDP0"; >>>> @@ -141,6 +180,16 @@ vbus_supply_regulator_0: regulator-vbus-supply-0 { >>>> enable-active-high; >>>> }; >>>> >>>> + vbus_supply_regulator_1: regulator-vbus-supply-1 { >>>> + compatible = "regulator-fixed"; >>>> + regulator-name = "vbus_supply_1"; >>>> + gpio = <&expander1 3 GPIO_ACTIVE_HIGH>; >>>> + regulator-min-microvolt = <5000000>; >>>> + regulator-max-microvolt = <5000000>; >>>> + regulator-boot-on; >>>> + enable-active-high; >>>> + }; >>>> + >>>> vmmc_sdc: regulator-vmmc-sdc { >>>> compatible = "regulator-fixed"; >>>> >>>> @@ -536,6 +585,39 @@ hd3ss3220_0_out_ep: endpoint { >>>> }; >>>> }; >>>> }; >>>> + >>>> + usb-typec@47 { >>>> + compatible = "ti,hd3ss3220"; >>>> + reg = <0x47>; >>>> + >>>> + interrupts-extended = <&pmm8654au_2_gpios 6 IRQ_TYPE_EDGE_FALLING>; >>>> + >>>> + id-gpios = <&tlmm 51 GPIO_ACTIVE_HIGH>; >>>> + >>>> + pinctrl-0 = <&usb1_id>, <&usb1_intr>; >>>> + pinctrl-names = "default"; >>>> + >>>> + ports { >>>> + #address-cells = <1>; >>>> + #size-cells = <0>; >>>> + >>>> + port@0 { >>>> + reg = <0>; >>>> + >>>> + hd3ss3220_1_in_ep: endpoint { >>>> + remote-endpoint = <&usb1_con_ss_ep>; >>>> + }; >>>> + }; >>>> + >>>> + port@1 { >>>> + reg = <1>; >>>> + >>>> + hd3ss3220_1_out_ep: endpoint { >>>> + }; >>> >>> Why is this port disconnected? It it really N/C? >> >> Hi Dmitry, >> >> Sorry for the confusion, Can we do it as follows: >> >> hub: Hd3ss3220 typec-connector >> >> usb_hub_2_1 <-> port@1 port@1 <-> empty >> usb_hub_3_1 <-> port@2 port@2 <-> >> port@0 <-> port@0 >> > > You still missed the _why_. Why port@1 of HD3SS3220 is not connected? > There are no remote endpoints added in dwc3 node. Since we are making dr_mode host. Hence keeping this remore endpoint empty. Regards, Krishna,