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Tue, 13 Jan 2026 06:51:48 -0800 (PST) Received: from [192.168.1.102] ([120.60.62.237]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-34f5f7c6f4dsm20552848a91.8.2026.01.13.06.51.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 13 Jan 2026 06:51:47 -0800 (PST) From: Manivannan Sadhasivam X-Google-Original-From: Manivannan Sadhasivam To: Lorenzo Pieralisi , =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= , Rob Herring , Bjorn Helgaas , Chen Wang , Inochi Amaoto Cc: Han Gao , linux-pci@vger.kernel.org, sophgo@lists.linux.dev, linux-kernel@vger.kernel.org, Yixun Lan , Longbin Li , Han Gao In-Reply-To: <20260109040756.731169-1-inochiama@gmail.com> References: <20260109040756.731169-1-inochiama@gmail.com> Subject: Re: [PATCH] PCI/sophgo: Avoid L0s and L1 on Sophgo 2044 PCIe Root Ports Message-Id: <176831590431.500768.9251307274356703200.b4-ty@kernel.org> Date: Tue, 13 Jan 2026 20:21:44 +0530 Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Mailer: b4 0.14.3 X-Proofpoint-ORIG-GUID: aaDFdAqe3ZvlLxl57FEfNUcSqrXsPJrm X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTEzMDEyNSBTYWx0ZWRfX9QlDzI6ofgb6 0pd7lYLT/Uw8hN3k3Dt9ulLMg+YyqzaEUZv3qnlEgVXVu1bBIESpuKpoPMkQ+ZPc5W+txSWCrKk FHi1Tc3ADTvCxF8dmAPCp6ZwcIQfQnnlF87zQuxKnWDghqnSzvvpic4+XbmTLKwGnGl5my/8qFm u7HdUGs0UU6JqxPZsHAEaqrQGlZHvyDpFq3qZAQm5u/8XVhL8olAMr4p5WmXaqFFUYvRNn3T5u7 T7swWtn1XkQ5XHiEmtyIxNiMiV6cMQlPPspDOIEk3Dbf60CJjIJT/2pz0r2vok9hAZlPhDm2ZsX AEo7GpLdTt6Fu75VXIsqz8CZlp+rosdRMjNQNri9KbqtSxKk2/TIQZ4OZ6chlVgC6lv3i83BZLo Z5knK9Swxd53a59QJfc1zObnK6l9afOlZbpglREMsnI2AgSD2aGsIWof/t63Oxc5lJeIEDv9YWo qxX5uRCd/GkjJNfvyLg== X-Authority-Analysis: v=2.4 cv=RMu+3oi+ c=1 sm=1 tr=0 ts=69665c05 cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=tlgrONNCw2HA119KiuRAjA==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=VwQbUJbxAAAA:8 a=8rKNN5rFLlO33tCDVXkA:9 a=QEXdDO2ut3YA:10 a=zZCYzV9kfG8A:10 a=mQ_c8vxmzFEMiUWkPHU9:22 X-Proofpoint-GUID: aaDFdAqe3ZvlLxl57FEfNUcSqrXsPJrm X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2026-01-13_03,2026-01-09_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 malwarescore=0 impostorscore=0 suspectscore=0 phishscore=0 spamscore=0 lowpriorityscore=0 priorityscore=1501 bulkscore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2512120000 definitions=main-2601130125 On Fri, 09 Jan 2026 12:07:53 +0800, Inochi Amaoto wrote: > Since commit f3ac2ff14834 ("PCI/ASPM: Enable all ClockPM and ASPM > states for devicetree platforms") force enable ASPM on all device tree > platform, the SG2044 root port breaks as it advertises L0s and L1 > capabilities without supporting it. > > Mask the L0s and L1 Support advertised in Link Capabilities > in the LINKCAP register SG2044 Root Ports, so the framework > won't try to enable those states. > > [...] Applied, thanks! [1/1] PCI/sophgo: Avoid L0s and L1 on Sophgo 2044 PCIe Root Ports commit: 613f3255a35a95f52575dd8c60b7ac9d711639ce Best regards, -- Manivannan Sadhasivam