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[129.46.96.20]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-13b9081d5c3sm18677102c88.9.2026.07.13.00.20.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 13 Jul 2026 00:20:31 -0700 (PDT) Date: Mon, 13 Jul 2026 00:20:29 -0700 From: Peter Chen To: Krzysztof Kozlowski Cc: Thinh Nguyen , Dmitry Baryshkov , Krishna Kurapati , Greg Kroah-Hartman , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Wesley Cheng , "linux-arm-msm@vger.kernel.org" , "linux-usb@vger.kernel.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH v4 1/2] dt-bindings: qcom,snps-dwc3: Add property indicating presence of eUSB2 phy Message-ID: References: <20260709-eusb2-interrupt-handling-v5-v4-0-d4f993925608@oss.qualcomm.com> <20260709-eusb2-interrupt-handling-v5-v4-1-d4f993925608@oss.qualcomm.com> <20260710-warping-resolute-wasp-e4b8ce@quoll> <7a099224-ea95-40ec-b279-f8834f261e23@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzEzMDA3NCBTYWx0ZWRfX82f07PSzo9Dm fcqfEyzKlFgNT6X34tXh3qUs6VT5zfrraYEgVbaSfW2+POoJxXq6kpbeC5oPvakDVATxnG6CbCu DiMAYe0Vx/rdX97962KXwU5hLAyLTJ+BYX5ZH39SC6I/U6X2qf+TWlaRVZDiBBYPEVanIDWUIBZ epMfhc/GwTZCJTWAZ5MCGpiKInq5DX0jp3whDD6exhNQVlbXL/JJA2H9Gpntuj6e5+vq8VYMIRV 8xx448xkLxC7Co06dLhT83V5wGHig2qTpQAzjsXJQ3HfFT5jEGRMDtGWexx2OjBX/ULrpqiDdLX d89MKZ+E0cAsiVE5St8osG/q5CmncwKKdzcqutcdrRnfIEk5xRwgBkVShhBRVcz6ByKrqrWQyWh 4z9Ew9e+1gnz5PDROKhjzCvDPQDrXvpgEzfKzWP53SaHOOaORtkZuxVmNad861ptPrQGtNG7c7Y /t3Yklo/dbh4u41+sjQ== X-Proofpoint-ORIG-GUID: 0GflO2abiISpBtwRk6bjwLYXJ-vRAdsO X-Proofpoint-Spam-Info: AW1haW4tMjYwNzEzMDA3NCBTYWx0ZWRfX+mDhABjM9FTF H/pUbycMIkpIAkkQSlA+tRQC5r+s3uRYNHWfRpk0xF7ZDD11tZXXjk5QF+qs9T4lk1JjtrPigrq yFNvZ7e/1XSGV5dMdrPCXnCL50FiJyg= X-Proofpoint-GUID: 0GflO2abiISpBtwRk6bjwLYXJ-vRAdsO X-Authority-Analysis: v=2.4 cv=aaJRWxot c=1 sm=1 tr=0 ts=6a5491c0 cx=c_pps a=rz3CxIlbcmazkYymdCej/Q==:117 a=ouPCqIW2jiPt+lZRy3xVPw==:17 a=kj9zAlcOel0A:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=Um2Pa8k9VHT-vaBCBUpS:22 a=VwQbUJbxAAAA:8 a=Us82urZKVve1r2lckrIA:9 a=CjuIK1q_8ugA:10 a=bFCP_H2QrGi7Okbo017w:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-13_02,2026-07-10_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 phishscore=0 bulkscore=0 clxscore=1011 lowpriorityscore=0 adultscore=0 malwarescore=0 spamscore=0 suspectscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607130074 On 26-07-13 08:26:59, Krzysztof Kozlowski wrote: > >> And Dmitry already said this at v3. > > > > And I've already responded to his comment in v3: > > https://lore.kernel.org/linux-usb/ahjYwJtiMsm0BcCh@vbox/ > > It does not change the fact that type of phy is implied by compatible, > thus you do not get a new property. > > For USB2 PHY, it has property "phy_type" already, it could extend support list to eUSB2 like below, dwc3 qcom glue layer could call of_usb_get_phy_mode or re-use dwc3->hsphy_mode depends on where it needs to use. diff --git a/drivers/usb/phy/of.c b/drivers/usb/phy/of.c index 1ab134f45d67..5cbf17d493ad 100644 --- a/drivers/usb/phy/of.c +++ b/drivers/usb/phy/of.c @@ -16,6 +16,7 @@ static const char *const usbphy_modes[] = { [USBPHY_INTERFACE_MODE_ULPI] = "ulpi", [USBPHY_INTERFACE_MODE_SERIAL] = "serial", [USBPHY_INTERFACE_MODE_HSIC] = "hsic", + [USBPHY_INTERFACE_MODE_EUSB2] = "eusb2", }; -- Thanks, Peter Chen