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[199.106.103.52]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3339aa37dbdsm42950318eec.11.2026.09.09.23.47.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Sep 2026 23:47:31 -0700 (PDT) Date: Thu, 10 Sep 2026 14:47:24 +0800 From: Shawn Guo To: Krishna Chaitanya Chundru Cc: Vinod Koul , Neil Armstrong , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Lorenzo Pieralisi , Krzysztof =?utf-8?Q?Wilczy=C5=84ski?= , Manivannan Sadhasivam , Bjorn Helgaas , Bjorn Andersson , Maxime Chevallier , Philipp Zabel , linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, Konrad Dybcio Subject: Re: [PATCH v3 3/5] PCI: qcom: Add CGC disable workaround for Nord PCIe Message-ID: References: <20260909-nord-v3-0-b0a82721c547@oss.qualcomm.com> <20260909-nord-v3-3-b0a82721c547@oss.qualcomm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20260909-nord-v3-3-b0a82721c547@oss.qualcomm.com> X-Proofpoint-GUID: P-y6et1v5S9urek4BRchb4BhUDJSMffA X-Authority-Analysis: v=2.4 cv=GNqdgeNK c=1 sm=1 tr=0 ts=6aa25285 cx=c_pps a=vVfyC5vLCtgYJKYeQD43oA==:117 a=b9+bayejhc3NMeqCNyeLQQ==:17 a=kj9zAlcOel0A:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=EUspDBNiAAAA:8 a=Y4sVft1UDeOkrP7wHAgA:9 a=CjuIK1q_8ugA:10 a=zZCYzV9kfG8A:10 a=rl5im9kqc5Lf4LNbBjHf:22 X-Proofpoint-ORIG-GUID: P-y6et1v5S9urek4BRchb4BhUDJSMffA X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTEwMDA3MSBTYWx0ZWRfX9PCftb2XyPfq J16DZTE0M5Oz7jTkAU9sC2usO0sM+H7Oa7nLzuUv+CMKolZb/wSAfOsH7/iTcsJ1ON/2yo7Enhq 3gQXXvSqlHhLjEYRmx1K+y0FajRtYd2aNEPQMHY3ZVfCEoNOjqU5GJbYmpIEefcCQSGig7bE5+V 1mO9+e8Sge6I1E9brkG3oCB2YmIYUt5nzoBmDEp4X7Rg78+I16qXxdcZdppsBpnt3xprtrZ23/3 EUltOjmD4ONUVYzBVP9SxLf0iPwfZHZog7x+8cLWRXhNHKgaqA1Q5NcoppDIMAZy60Xh4b1S160 CwDYw0qsjwzCiSpNZo0syc1+iB9tRZf0fA2HRgboRDIRP4gzDJbCf5eDxKeZ/KHzbiZTSK2+f1r eYNZgybDhNpj5V+8x+HgDR1aKSviSL0TN77jFP8+5TFJxsH86sjdbn/Q8tlivB7GyfOjLbFOwU0 tq8eUWzHus7i5MMcBoQ== X-Proofpoint-Spam-Info: AW1haW4tMjYwOTEwMDA3MSBTYWx0ZWRfXxf/tIfsCdhnX 8/0oH5nlWQoayhs7MXd4008EkLt9JCFm5U844AZ355KVOpoIue14m7N9hWJ/9NLvnOm+HhF2weP JGAEk66gORUMN3zzr5adxmOKhVCsvgQ= 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=2026-09-10_02,2026-09-09_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 impostorscore=0 priorityscore=1501 adultscore=0 phishscore=0 malwarescore=0 bulkscore=0 spamscore=0 suspectscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609100071 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260909_234734_624053_D2B64739 X-CRM114-Status: GOOD ( 11.72 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org On Wed, Sep 09, 2026 at 05:18:18PM +0530, Krishna Chaitanya Chundru wrote: > Nord requires a workaround to address a timing convergence issue in the > PCIe power domain. To avoid the issue, set the CORE_CLK_CGC_DIS and > AUX_PWR_DET bits in PARF_SYS_CTRL after controller initialization. > > The SLV_ACLK_CGC_DIS bit is already configured by hardware reset. This > change adds the remaining required settings as documented in > QCTDD11972446. > > Reviewed-by: Konrad Dybcio > Signed-off-by: Krishna Chaitanya Chundru Reviewed-by: Shawn Guo -- linux-phy mailing list linux-phy@lists.infradead.org https://lists.infradead.org/mailman/listinfo/linux-phy