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[129.46.96.20]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-13ce2cd764fsm26154128c88.12.2026.07.19.20.03.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 19 Jul 2026 20:03:24 -0700 (PDT) Date: Sun, 19 Jul 2026 20:03:22 -0700 From: Peter Chen To: Thinh Nguyen Cc: Krishna Kurapati , Konrad Dybcio , Krzysztof Kozlowski , Dmitry Baryshkov , 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: Precedence: bulk X-Mailing-List: devicetree@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-Info: AW1haW4tMjYwNzIwMDAzMCBTYWx0ZWRfX9IQ1W3EE8U2L w1AQa0p5BvsNRdM4ptosdqMyC7XbDdHbboAl/6x0TjUpMftHXevqjpX/CppbQoDX+cF3uhqGaqR /uJrpCZFP1E31he8P1gYzJD+DMVhdIc= X-Proofpoint-GUID: bjaEPtdZ0M8R_Yhjp9qYd7hdza57az8f X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzIwMDAzMCBTYWx0ZWRfX3TLdXmwPJQ+r 6LVmE5RrMIBW1rq88xLndi4e5wUYHfNrO+0sJbgFHPu4ccUGDrIWxT0IB1xJSKA2eEu+rg4Kcq4 mxo/C05N8Md2Q42G3KIPsv4gDfVjm3bc06VQ0GT74+RW3ZxpYjhcr4S94+5nDdHN6kMsdPNz9zB 6cK36s1UzFt0uCSU+YxoQ6DBW8gnwkGeSPtwsqhaXSxShq1Shs5b9qlPfCupqGHzGoJeH0q3MiB WIlN9W2auHmCJIm8FuPnUX8BjVEEXkHaktseN3ZzyTJYatjjTAyErWkcRulxlP0YLr9zUGOKjsh xIcxgpt9hNCsGKM/WG4Oy/neZqmJIN6F/HBmrEvxZtv1ii5FxEoxKo7TW0N/8ehyqR2rRaFS421 0MLhPVJzGRaqyBErBLdcdgtMfS+oV+7r2VbddtrsVqwsmNIQkaWcL8Kpypxq9Lj+Zox67XEcnJw SkDgXe2hKV5bCrph9sA== X-Authority-Analysis: v=2.4 cv=T5K8ifKQ c=1 sm=1 tr=0 ts=6a5d8ffe cx=c_pps a=Oh5Dbbf/trHjhBongsHeRQ==:117 a=ouPCqIW2jiPt+lZRy3xVPw==:17 a=kj9zAlcOel0A:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=qpuNF6eMhq1g9PuOxCQA:9 a=CjuIK1q_8ugA:10 a=_Vgx9l1VpLgwpw_dHYaR:22 X-Proofpoint-ORIG-GUID: bjaEPtdZ0M8R_Yhjp9qYd7hdza57az8f 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=2026-07-19_08,2026-07-17_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 malwarescore=0 impostorscore=0 bulkscore=0 adultscore=0 suspectscore=0 lowpriorityscore=0 spamscore=0 clxscore=1015 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607200030 On 26-07-17 21:34:37, Thinh Nguyen wrote: > > > > Konrad did suggest this on v3: > > > > https://urldefense.com/v3/__https://lore.kernel.org/all/3de365a0-4632-42ea-8a8a-5a4765945a76@oss.qualcomm.com/__;!!A4F2R9G_pg!bFfHVkKIznULZPI2qLzahGobT6OIz4j3-XA_n_3hHnRuvzps_XuAGJdphzxkK4bk6twEah-Zn6xRS1uCQCjZ1ud3HnRftKhw2SXfqA$ > > > > This involves cleaning all drivers using these enums if we take that route. > > We should not be using phy_attrs.mode. It's a runtime operation mode. > > Instead, we can introduce a new phy attribute phy_attrs.type and > phy_get_type(). The phy driver can set this at probe and the dwc3-qcom.c > can query it from the phy phandle. > > We can define PHY_TYPE_EUSB2 along with the existing types in > include/dt-bindings/phy/phy.h for this attribute. > > BR, > Thinh Good suggestion, Thinh. Krishna, would you try to do that? -- Thanks, Peter Chen