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{ "id": 2226311, "url": "http://patchwork.ozlabs.org/api/covers/2226311/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/cover/20260422-pwrseq-m2-bt-v1-0-720d02545a64@oss.qualcomm.com/", "project": { "id": 28, "url": "http://patchwork.ozlabs.org/api/projects/28/?format=api", "name": "Linux PCI development", "link_name": "linux-pci", "list_id": "linux-pci.vger.kernel.org", "list_email": "linux-pci@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260422-pwrseq-m2-bt-v1-0-720d02545a64@oss.qualcomm.com>", "list_archive_url": null, "date": "2026-04-22T11:24:41", "name": "[00/12] Fixes/improvements for the PCI M.2 power sequencing driver", "submitter": { "id": 91277, "url": "http://patchwork.ozlabs.org/api/people/91277/?format=api", "name": "Manivannan Sadhasivam via B4 Relay", "email": "devnull+manivannan.sadhasivam.oss.qualcomm.com@kernel.org" }, "mbox": "http://patchwork.ozlabs.org/project/linux-pci/cover/20260422-pwrseq-m2-bt-v1-0-720d02545a64@oss.qualcomm.com/mbox/", "series": [ { "id": 500992, "url": "http://patchwork.ozlabs.org/api/series/500992/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/list/?series=500992", "date": "2026-04-22T11:24:41", "name": "Fixes/improvements for the PCI M.2 power sequencing driver", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/500992/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2226311/comments/", "headers": { "Return-Path": "\n <linux-pci+bounces-52955-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-pci@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=kIR6rp2V;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c15:e001:75::12fc:5321; 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a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1776857112; cv=none;\n b=exM5qG9/Rw4LFe6Vg1ADBMH5AIT4qIqf7fDVzNaxajVROz5I8BiRSsCHGxi5Y/sFj4TucaazH9OxB7aEcdLtgTHPKSGOV72J6Gqs0GPi8vl/OOVpCsZuv9bR2TClMvP7+w+IYGaOzd0e5lGSbZLuBORQS2E4PqK4aDKWbF+dekE=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1776857112; c=relaxed/simple;\n\tbh=lqk3QdLBMm60ixEGqFx4KyHoJO7Nz6868LggAMS8LtY=;\n\th=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc;\n b=pgjJFjKOnQNnX/mFNHyJ8Z/Cnbl4G/cPWfQ/I8lgO9MpAUn2PWCnDaVpyR8AHjX8B/eaPSRe6aUYUl2KYUnaqTLr+VOKOYhEOZTJsnswqVebG85aOovuQb2pn3yIwMSzk6/BelHOOcw37yhCpPz7ET73UnK5Kri5DhYAU7N8cj0=", "ARC-Authentication-Results": "i=1; smtp.subspace.kernel.org;\n dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=kIR6rp2V; arc=none smtp.client-ip=10.30.226.201", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n\ts=k20201202; t=1776857112;\n\tbh=lqk3QdLBMm60ixEGqFx4KyHoJO7Nz6868LggAMS8LtY=;\n\th=From:Subject:Date:To:Cc:Reply-To:From;\n\tb=kIR6rp2Vu1BnKdcfqcJYA4zIQ94njZwWTA/DCn2B7lwVOSyO+tawSqkzlOVo6+rKw\n\t d+4c7+Mj7z3ELj93WICzPQrtzxlQnv+vFVw3d6X/8r3HO5Ihueo/tIm5tHT9J7jwMD\n\t YHYqC2s6tZ+AHuA3m4BfStRf6UagheUkYJVitk2ruGogw2ZL63+B1x90twLaZXoi0n\n\t uycMrfXY/bIsr2bshI2B/G3kJ+PqR6MqOts0kRgk27/ay2d/Vk+cVcdbaMEIyT0bGQ\n\t Alq2DS7xO7VzlA1TdagMYgpxTuG9UiQOhxJIp2qaU/mPN8uwoe3UtZ1kVB+cK6sBcQ\n\t IAl8vVfmuqfHA==", "From": "Manivannan Sadhasivam via B4 Relay\n <devnull+manivannan.sadhasivam.oss.qualcomm.com@kernel.org>", "Subject": "[PATCH 00/12] Fixes/improvements for the PCI M.2 power sequencing\n driver", "Date": "Wed, 22 Apr 2026 16:54:41 +0530", "Message-Id": "<20260422-pwrseq-m2-bt-v1-0-720d02545a64@oss.qualcomm.com>", "Precedence": "bulk", "X-Mailing-List": "linux-pci@vger.kernel.org", "List-Id": "<linux-pci.vger.kernel.org>", "List-Subscribe": "<mailto:linux-pci+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-pci+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "X-B4-Tracking": "v=1; b=H4sIAPqv6GkC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE\n vPSU3UzU4B8JSMDIzMDEyMj3YLyouLUQt1cI92kEt3EpJTERHNDA0uT1CQloJaCotS0zAqwcdG\n xEH5xaVJWanIJyAyl2loAycvp3XAAAAA=", "X-Change-ID": "20260422-pwrseq-m2-bt-abdaa71094eb", "To": "Bartosz Golaszewski <brgl@kernel.org>,\n Manivannan Sadhasivam <mani@kernel.org>,\n Marcel Holtmann <marcel@holtmann.org>,\n Luiz Augusto von Dentz <luiz.dentz@gmail.com>,\n Shuai Zhang <quic_shuaz@quicinc.com>", "Cc": "linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,\n linux-pci@vger.kernel.org, linux-arm-msm@vger.kernel.org,\n linux-bluetooth@vger.kernel.org, Wei Deng <wei.deng@oss.qualcomm.com>,\n Luiz Augusto von Dentz <luiz.von.dentz@intel.com>,\n Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>,\n Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>,\n stable+noautosel@kernel.org", "X-Mailer": "b4 0.15.0", "X-Developer-Signature": "v=1; a=openpgp-sha256; l=2584;\n i=manivannan.sadhasivam@oss.qualcomm.com; h=from:subject:message-id;\n bh=lqk3QdLBMm60ixEGqFx4KyHoJO7Nz6868LggAMS8LtY=;\n b=owEBbQGS/pANAwAKAVWfEeb+kc71AcsmYgBp6K/+74ctGya8p8gkXaPiUCDCvw26R/1sf31k+\n 3IL7DZbwWyJATMEAAEKAB0WIQRnpUMqgUjL2KRYJ5dVnxHm/pHO9QUCaeiv/gAKCRBVnxHm/pHO\n 9SONB/97M+ux5IjYybMtelgpS4I3KTrOMDXpTMpWH1ziA49OGXH8mUfyDlcDGatxmuRfF6dhz9m\n tr0qaHJZLNOJsSgjWrh4E5qFDkKvO0Ss0DDwQpQJ8LA883KMrjYaL3g1jU1Ifq5fbqp7CeC7wIG\n /cjfeBjOumzw/0bQ9QVRm3h/qBH6SVaymWRMuTCaSjROVI76j1e7hfuiqK1agIIe94TbEndP/6b\n cYtLXHRTkUcC6rNuR8Q8MvlosdrmXeEI+PH/Pc8/IWfMlIyFjWCTrb5PLnSXeqRIPRoIet2KwzR\n 0dzB41l4ZPR2ByB8P4xYX01vga7PK58akyC/9i3rgBraM+hT", "X-Developer-Key": "i=manivannan.sadhasivam@oss.qualcomm.com; a=openpgp;\n fpr=C668AEC3C3188E4C611465E7488550E901166008", "X-Endpoint-Received": "by B4 Relay for\n manivannan.sadhasivam@oss.qualcomm.com/default with auth_id=461", "X-Original-From": "Manivannan Sadhasivam\n <manivannan.sadhasivam@oss.qualcomm.com>", "Reply-To": "manivannan.sadhasivam@oss.qualcomm.com" }, "content": "Hi,\n\nThis series has several key improvements and fixes to the M.2 power sequencing\ndriver and also the BT HCI_QCA driver. Notably, this series allows the M.2 power\nsequencing driver to work with more M.2 cards, not just WCN7850. It also allows\nthe BT HCI_QCA driver to detect whether it can control BT_EN (or W_DISABLE2#)\nsignal on the connector and set the HCI_QUIRK_NON_PERSISTENT_SETUP quirk.\n\nTesting\n=======\n\nThis series was tested on Lenovo Thinkpad T14s together with the below DTS\npatches:\nhttps://github.com/Mani-Sadhasivam/linux/commit/29534d15307551b2355eb254601dec511169f0aa\nhttps://github.com/Mani-Sadhasivam/linux/commit/f4eaacfe647674be200847092b43cdef2194fc55\n\nMerge Strategy\n==============\n\nSince the BT HCI_QCA changes depend on the pwrseq changes, it would be good to\nmerge the whole series through pwrseq tree or through an immutable branch.\n\nSigned-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>\n---\nManivannan Sadhasivam (12):\n power: sequencing: Introduce an API to check whether the pwrseq is fixed or controllable\n power: sequencing: pcie-m2: Add support for 'is_fixed()' callback to 'uart' target\n power: sequencing: qcom-wcn: Add support for 'is_fixed()' callback to 'bluetooth' target\n power: sequencing: pcie-m2: Fix inconsistent function prefixes\n power: sequencing: pcie-m2: Allow creating serdev for multiple PCI devices\n power: sequencing: pcie-m2: Improve PCI device ID check\n power: sequencing: pcie-m2: Create serdev for PCI devices present before probe\n power: sequencing: pcie-m2: Create BT node based on the pci_device_id[] table\n Bluetooth: hci_qca: Add M.2 Bluetooth device support using pwrseq\n Bluetooth: hci_qca: Rename 'power_ctrl_enabled' to 'bt_en_available'\n Bluetooth: hci_qca: Check whether the M.2 UART interface is fixed or not\n Bluetooth: hci_qca: Fix the broken BT_EN GPIO detection for Qcom WCN devices\n\n drivers/bluetooth/hci_qca.c | 40 +++--\n drivers/power/sequencing/core.c | 33 ++++\n drivers/power/sequencing/pwrseq-pcie-m2.c | 242 ++++++++++++++++++++++-------\n drivers/power/sequencing/pwrseq-qcom-wcn.c | 9 ++\n include/linux/pwrseq/consumer.h | 6 +\n include/linux/pwrseq/provider.h | 2 +\n 6 files changed, 262 insertions(+), 70 deletions(-)\n---\nbase-commit: 6596a02b207886e9e00bb0161c7fd59fea53c081\nchange-id: 20260422-pwrseq-m2-bt-abdaa71094eb\n\nBest regards,\n-- \nManivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>" }