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Thu, 29 May 2025 03:54:20 +0000 Received: from APTAIPPMTA01.qualcomm.com (APTAIPPMTA01.qualcomm.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 54T3sK3L030075; Thu, 29 May 2025 03:54:20 GMT Received: from cse-cd02-lnx.ap.qualcomm.com (cse-cd02-lnx.qualcomm.com [10.64.75.246]) by APTAIPPMTA01.qualcomm.com (PPS) with ESMTPS id 54T3sJEl030071 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 29 May 2025 03:54:20 +0000 Received: by cse-cd02-lnx.ap.qualcomm.com (Postfix, from userid 4438065) id 70F60315F; Thu, 29 May 2025 11:54:18 +0800 (CST) From: Ziyue Zhang To: lpieralisi@kernel.org, kwilczynski@kernel.org, manivannan.sadhasivam@linaro.org, robh@kernel.org, bhelgaas@google.com, krzk+dt@kernel.org, neil.armstrong@linaro.org, abel.vesa@linaro.org, kw@linux.com, conor+dt@kernel.org, vkoul@kernel.org, kishon@kernel.org, andersson@kernel.org, konradybcio@kernel.org Cc: linux-arm-msm@vger.kernel.org, linux-pci@vger.kernel.org, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, quic_qianyu@quicinc.com, quic_krichai@quicinc.com, quic_vbadigan@quicinc.com, Ziyue Zhang , Konrad Dybcio Subject: [PATCH v1 4/4] arm64: dts: qcom: sa8775p: add link_down reset for pcie Date: Thu, 29 May 2025 11:54:16 +0800 Message-Id: <20250529035416.4159963-5-quic_ziyuzhan@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250529035416.4159963-1-quic_ziyuzhan@quicinc.com> References: <20250529035416.4159963-1-quic_ziyuzhan@quicinc.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-QCInternal: smtphost X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNTI5MDAzMyBTYWx0ZWRfX/DlRSjHJvOD8 5+2U48b8xNRlVMABTo86fpuyIoqR9FS/I0A7NBmf9jq7GfFxezDm99Ub+JdPOhM0VnfPH6Z3Deu juOnciil2xpeLAg5Tp1zgMCJCn5XFvIfL+C+/XF+fP2OZMv2Ak9KC9RN3Bs0h/QNFUjriYTDpWM q/oblN6sBLt5sXZFCtLA2tLjW6vMLp6CiXpPhhRQPQbTDXdzdqdcFL6Uc7oTWKvcDaA3g4/Tw9s +8uNmSxKbdNn5mutFQ1UPgrgjnVTOQcxRyyCM+MTx+fkpU4DcWs3i4Plvz6uVYaqhOuUJNHAJ2Q tNt4nP/ApqXItR/TMMifvluJQspAHu/Sg5H1oGrOoYlj93zwnFkUsvNbkbJvtTVR1IBP1HvgBpn gTfTce2klPRZ8KGAlyVohcV4MfcfmOO2v17qE7wQTrMs/SG9e2003VL57dCB6XRlxn9D+7H/ X-Proofpoint-GUID: Z6zgpv9yHtpmZln3URObZZ4kVQlwnlLl X-Proofpoint-ORIG-GUID: Z6zgpv9yHtpmZln3URObZZ4kVQlwnlLl X-Authority-Analysis: v=2.4 cv=bupMBFai c=1 sm=1 tr=0 ts=6837da6f cx=c_pps a=nuhDOHQX5FNHPW3J6Bj6AA==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=dt9VzEwgFbYA:10 a=COk6AnOGAAAA:8 a=EUspDBNiAAAA:8 a=UMluCPnEzjiUAf4N7sYA:9 a=TjNXssC_j7lpFel5tvFf:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.0.736,FMLib:17.12.80.40 definitions=2025-05-29_01,2025-05-27_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 bulkscore=0 lowpriorityscore=0 clxscore=1015 spamscore=0 suspectscore=0 mlxlogscore=999 phishscore=0 mlxscore=0 adultscore=0 malwarescore=0 priorityscore=1501 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2505160000 definitions=main-2505290033 SA8775p supports 'link_down' reset on hardware, so add it for both pcie0 and pcie1, which can provide a better user experience. Signed-off-by: Ziyue Zhang Reviewed-by: Konrad Dybcio --- arch/arm64/boot/dts/qcom/sa8775p.dtsi | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi index d7248014368b..c8ce3d42c894 100644 --- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi +++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi @@ -7152,8 +7152,11 @@ pcie0: pcie@1c00000 { iommu-map = <0x0 &pcie_smmu 0x0000 0x1>, <0x100 &pcie_smmu 0x0001 0x1>; - resets = <&gcc GCC_PCIE_0_BCR>; - reset-names = "pci"; + resets = <&gcc GCC_PCIE_0_BCR>, + <&gcc GCC_PCIE_0_LINK_DOWN_BCR>; + reset-names = "pci", + "link_down"; + power-domains = <&gcc PCIE_0_GDSC>; phys = <&pcie0_phy>; @@ -7312,8 +7315,11 @@ pcie1: pcie@1c10000 { iommu-map = <0x0 &pcie_smmu 0x0080 0x1>, <0x100 &pcie_smmu 0x0081 0x1>; - resets = <&gcc GCC_PCIE_1_BCR>; - reset-names = "pci"; + resets = <&gcc GCC_PCIE_1_BCR>, + <&gcc GCC_PCIE_1_LINK_DOWN_BCR>; + reset-names = "pci", + "link_down"; + power-domains = <&gcc PCIE_1_GDSC>; phys = <&pcie1_phy>;