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Wed, 12 Mar 2025 08:43:50 GMT Received: from hu-varada-blr.qualcomm.com (10.80.80.8) by nasanex01b.na.qualcomm.com (10.46.141.250) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Wed, 12 Mar 2025 01:43:45 -0700 From: Varadarajan Narayanan To: , , , , , , , , , , , , , , CC: Varadarajan Narayanan Subject: [PATCH v12 0/4] Add PCIe support for Qualcomm IPQ5332 Date: Wed, 12 Mar 2025 14:13:26 +0530 Message-ID: <20250312084330.873994-1-quic_varada@quicinc.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nasanex01b.na.qualcomm.com (10.46.141.250) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Authority-Analysis: v=2.4 cv=M6hNKzws c=1 sm=1 tr=0 ts=67d14947 cx=c_pps a=JYp8KDb2vCoCEuGobkYCKw==:117 a=JYp8KDb2vCoCEuGobkYCKw==:17 a=GEpy-HfZoHoA:10 a=Vs1iUdzkB0EA:10 a=VwQbUJbxAAAA:8 a=COk6AnOGAAAA:8 a=wWAAX9LI6ptjq62IaZgA:9 a=TjNXssC_j7lpFel5tvFf:22 X-Proofpoint-ORIG-GUID: -sehb4s4NJQZ2rZNROuJoetSPDa0RKjk X-Proofpoint-GUID: -sehb4s4NJQZ2rZNROuJoetSPDa0RKjk X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1093,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-03-12_03,2025-03-11_02,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 impostorscore=0 malwarescore=0 bulkscore=0 mlxlogscore=999 clxscore=1015 phishscore=0 lowpriorityscore=0 spamscore=0 mlxscore=0 adultscore=0 priorityscore=1501 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2502280000 definitions=main-2503120058 Patch series adds support for enabling the PCIe controller and UNIPHY found on Qualcomm IPQ5332 platform. PCIe0 is Gen3 X1 and PCIe1 is Gen3 X2 are added. This series combines [1] and [2]. [1] introduces IPQ5018 PCIe support and [2] depends on [1] to introduce IPQ5332 PCIe support. Since the community was interested in [2] (please see [3]), tried to revive IPQ5332's PCIe support with v2 of this patch series. v2 of this series pulled in the phy driver from [1] tried to address comments/feedback given in both [1] and [2]. 1. Enable IPQ5018 PCI support (Nitheesh Sekar) - https://lore.kernel.org/all/20231003120846.28626-1-quic_nsekar@quicinc.com/ 2. Add PCIe support for Qualcomm IPQ5332 (Praveenkumar I) - https://lore.kernel.org/linux-arm-msm/20231214062847.2215542-1-quic_ipkumar@quicinc.com/ 3. Community interest - https://lore.kernel.org/linux-arm-msm/20240310132915.GE3390@thinkpad/ v12: * Skipped the following (Vinod Koul has picked them) dt-bindings: phy: qcom,uniphy-pcie: Document PCIe uniphy phy: qcom: Introduce PCIe UNIPHY 28LP driver * Skipped this (merged) dt-bindings: PCI: qcom: Document the IPQ5332 PCIe controller * Undo combining sdx55 & ipq9574. Discard the following dt-bindings: PCI: qcom: Use sdx55 reg description for ipq9574 arm64: dts: qcom: ipq9574: Reorder reg and reg-names * Append MHI registers to ipq9574 dt-bindings and dts dt-bindings: PCI: qcom: Add MHI registers for IPQ9574 arm64: dts: qcom: ipq9574: Add MHI to pcie nodes * ipq5332.dtsi: Align reg-names order with ipq9574 Dropped R-b tag per feedback * No new warnings/errors with dt_binding_check and dtbs_check v11: * phy-qcom-uniphy-pcie-28lp.c * Remove unused #define * Use "250 * MEGA" instead of 250000000 v10: * ipq5332.dtsi: Trim down the list of assigned clocks * ipq9574 and ipq5332 DT * Fix 'simple-bus unit address format error' in ipq9574 and ipq5332 DTS * Rearrange nodes w.r.t. address sort order * Have spoken with 'Manikanta Mylavarapu' [1] for omitting similar changes in qcom,pcie.yaml that are handled in this series. * Reformat commit messages to 75 character limit * controller bindings: Fix maxItems for interrupts constraint of sdm845 1 - https://lore.kernel.org/linux-arm-msm/20250125035920.2651972-2-quic_mmanikan@quicinc.com/ v9: Dont have fallback for num-lanes in driver and return error Remove superfluous ipq5332 constraint as the fallback is present v8: Add reviewed by Remove duplication in bindings due to ipq5424 code getting merged v7: phy bindings: * Include data type definition to 'num-lanes' controller bindings: * Split the ipq9574 and ipq5332 changes into separate patches dtsi: * Add root port definitions v6: phy bindings: * Fix num-lanes definition phy driver: * Fix num-lanes handling in probe to use generally followed pattern controller bindings: * Give more info in commit log dtsi: * Add assigned-clocks & assigned-clock-rates to controller nodes * Add num-lanes to pcie0_phy v5: phy bindings: * Drop '3x1' & '3x2' from compatible string * Use 'num-lanes' to differentiate instead of '3x1' or '3x2' in compatible string * Describe clocks and resets instead of just maxItems phy driver: * Get num-lanes from DTS * Drop compatible specific init data as there is only one compatible string controller bindings: * Re-arrange 5332 and 9574 compatibles to handle fallback usage in dts dtsi: * Add 'num-lanes' to "pcie1_phy: phy@4b1000" * Make ipq5332 as main and ipq9574 as fallback compatible * Sort controller nodes per address misc: Add R-B tag from Konrad to dts and dtsi patches v4: * phy bindings - Create ipq5332 compatible instead of reusing ipq9574 for bindings * phy bindings - Remove reset-names as the resets are handled with bulk APIs * phy bindings - Fix order in the 'required' section * phy bindings - Remove clock-output-names * dtsi - Add missing reset for pcie1_phy * dtsi - Convert 'reg-names' to a vertical list * dts - Fix nodes sort order * dts - Use property-n followed by property-names v3: * Update the cover letter with the sources of the patches * Rename the dt-bindings yaml file similar to other phys * Drop ipq5332 specific pcie controllor bindings and reuse ipq9574 pcie controller bindings for ipq5332 * Please see patches for specific changes * Set GPL license for phy-qcom-uniphy-pcie-28lp.c v2: Address review comments from V1 Drop the 'required clocks' change that would break ABI (in dt-binding, dts, gcc-ipq5332.c) Include phy driver from the dependent series v1: https://lore.kernel.org/linux-arm-msm/20231214062847.2215542-1-quic_ipkumar@quicinc.com/ Praveenkumar I (2): arm64: dts: qcom: ipq5332: Add PCIe related nodes arm64: dts: qcom: ipq5332-rdp441: Enable PCIe phys and controllers Varadarajan Narayanan (2): dt-bindings: PCI: qcom: Add MHI registers for IPQ9574 arm64: dts: qcom: ipq9574: Add MHI to pcie nodes .../devicetree/bindings/pci/qcom,pcie.yaml | 3 +- arch/arm64/boot/dts/qcom/ipq5332-rdp441.dts | 76 ++++++ arch/arm64/boot/dts/qcom/ipq5332.dtsi | 252 +++++++++++++++++- arch/arm64/boot/dts/qcom/ipq9574.dtsi | 40 ++- 4 files changed, 360 insertions(+), 11 deletions(-) base-commit: eea255893718268e1ab852fb52f70c613d109b99 prerequisite-patch-id: 56fe29d9207ac31ab08ca54712adc2a865b7be89 prerequisite-patch-id: f50f4b13ea072aea4beae5d5ecaf62336d9d2a31