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Tue, 13 Oct 2026 01:39:24 -0700 (PDT) X-Received: by 2002:a05:7022:b055:10b0:148:4d6c:201e with SMTP id a92af1059eb24-16a5faa6965mr17112648c88.23.1791880763693; Tue, 13 Oct 2026 01:39:23 -0700 (PDT) Received: from [10.218.1.199] ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-169a442ac67sm55939416c88.18.2026.10.13.01.39.17 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 13 Oct 2026 01:39:23 -0700 (PDT) Message-ID: <6851ca2b-775e-44d7-b437-d04fd4ea4f21@oss.qualcomm.com> Date: Tue, 13 Oct 2026 14:09:16 +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 v7 0/5] Modify interrupt handling for eUSB2 Phy targets To: Manivannan Sadhasivam Cc: Vinod Koul , Neil Armstrong , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Thinh Nguyen , Greg Kroah-Hartman , linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-usb@vger.kernel.org, Krzysztof Kozlowski References: <20260905-eusb2-interrupt-v7-v7-0-820cf5377a70@oss.qualcomm.com> Content-Language: en-US From: Krishna Kurapati In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDEzMDAzNCBTYWx0ZWRfX1Y0vhWcgJUSS WO7YbfRtzZFST7Nnz2j5VTwqFS7hv3DSuPMWV/G2m7BsnkEwkaga6s4x6+p+krhzJgZmkT3x41e BogVLXJyfNvFg5celwiz/vLnEL8EHpQGDjhYnuBmDFkEVGpevpUgCkqDH/+m5DrN2XCWU0PNmE/ kOw+qWvbXlyGc+FuiU9XNLuBgm+pfOl1aZ9Hs9XLecEC812iyYPWM7Z38q+SVrmMAgvTmgG6lSo Svc9tZpsAtZqO/4LSQhQuXTdEdhrWqxYDSAdegzRe1q8hvJWnalisWh5qrXRIF1BHYkUkiGdneE 5QAFmL8UJIkeHJbnkLK9VoqjVtbBdOKlWrHE/pZtSvfXFzmd0JL4PjnCTDdUbPJpbgg9u3+wkxo qEl+qPNyeTqf7TYByRxZcv7kZF+01QYyCP97qP7f7cQ35lCJWOpdeO6XIh+5y0EY+O73WBPWK3f ENaQmR8PpZk9IbZD+nQ== X-Authority-Analysis: v=2.4 cv=VPVIDNPX c=1 sm=1 tr=0 ts=6acdee3d cx=c_pps a=bS7HVuBVfinNPG3f6cIo3Q==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=SsOP-9FfJHXtHJDkYNsA:9 a=QEXdDO2ut3YA:10 a=vBUdepa8ALXHeOFLBtFW:22 X-Proofpoint-ORIG-GUID: G0G5QfKfdEDJ6aDJczw33mpgyrABA_d9 X-Proofpoint-Spam-Info: AW1haW4tMjYxMDEzMDAzNCBTYWx0ZWRfX2riRcbvgMy5q zr96nL/H/1NlffSPWnnaIM5gG5+Jf+tUucjyVksrxZriHId9PkCKQ8vc5wpJHDVBLwpAncrBnsV ydhcfYBilP/60zyXFo29MdZR15PGwO8= X-Proofpoint-GUID: G0G5QfKfdEDJ6aDJczw33mpgyrABA_d9 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=2026-10-13_01,2026-10-09_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 priorityscore=1501 malwarescore=0 impostorscore=0 spamscore=0 suspectscore=0 lowpriorityscore=0 adultscore=0 phishscore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610080000 definitions=main-2610130034 On 10/12/2026 7:01 PM, Manivannan Sadhasivam wrote: > On Sat, Sep 05, 2026 at 08:59:04PM +0530, Krishna Kurapati wrote: >> eUSB2 targets handle wakeup interrupts differently depending on device >> speed when operating in host mode. >> >> According to the eUSB2 specification, remote wakeup signaling in host >> mode is detected via different data-line assertions based on the >> connected device speed. >> >> When a low-speed device is connected, the host repeater drives eD+ to >> logic '1' upon detecting a K-state on the USB lines during remote wakeup >> (eUSB2 specification, Section 5.5.14). >> >> When a full-speed or high-speed device is connected, the host repeater >> drives eD- to logic '1' upon detecting a K-state on the USB line during >> remote wakeup (eUSB2 specification, Sections 5.5.15 and 5.5.18). >> >> Since the eUSB2 PHY's "DP" and "DM" interrupt lines monitor the eD+ and >> eD- line states, configure the wakeup interrupts accordingly >> >> Add support for a new phy "type" attribute to be set by eusb2 phy drivers >> and be read by consumers (in this case usb controller) and act accordingly >> >> Changes pushed on top of usb-testing branch. And v7 is only compile tested. >> > > I believe the merge strategy is to merge all the patches through PHY tree. If > anyone feel otherwise, please yell at me. > There is one existing comment from Vinod on v8-2/5: https://lore.kernel.org/all/3a3cf540-816f-41a3-b31d-2902e7f4cf01@oss.qualcomm.com/ Once it is addressed, will send v9 on top of phy next. Regards, Krishna,