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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-kernel@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-Authority-Analysis: v=2.4 cv=BYXVE7t2 c=1 sm=1 tr=0 ts=69665c05 cx=c_pps a=UNFcQwm+pnOIJct1K4W+Mw==: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=uKXjsCUrEbL0IQVhDsJ9:22 X-Proofpoint-ORIG-GUID: kn5ZWymQyOpWdlsFblMq2geB-h7v5A0b X-Proofpoint-GUID: kn5ZWymQyOpWdlsFblMq2geB-h7v5A0b X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTEzMDEyNSBTYWx0ZWRfX1OeShbXjU04y JMhUb1bGvL/B8LQv16YtpbTOSK1FPWcryW7ewnm9jYkkTGO6Ca2AacqFlrKby1zuX7nMQnFVRnh hf59V57G/86DIGVXn/ECnstYCenPQzyER/TrURrmh18hRDdlhA5c/xwy6bVeHpe0jJtNu/CQs0H 4X6UlIvC/KYW7/7TesZWdNrrTVAt2yJIngiX+t4OAMGt5A/w9s4sgQq53trVzzSZ1OFV7yZi5XZ Tlpz2G0Ag9Lvmm6JFzBFKst8FJpmywfQkd5VJy7sY8VZtmk7fWT55eMf8DUOg2VxM/NVw94meMa cYXcdvWgX01Gn2DPXCmZomfau/HX7/yxFRSxnlBbk6SPbwkThfNP2BxdKurMSqgZt/ht08pX9Js UQFZf/zPk9mdZqiJNjXOnRapEbKUMBy0i6Ot2E+2fDMnPHyDnlGSHzeMWRBUSbLCoF6GPTQCBlZ tsaAH/SAC7VNXMRgOcA== 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 lowpriorityscore=0 bulkscore=0 phishscore=0 impostorscore=0 spamscore=0 malwarescore=0 clxscore=1015 priorityscore=1501 suspectscore=0 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