{"id":2226311,"url":"http://patchwork.ozlabs.org/api/covers/2226311/?format=json","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=json","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=json","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=json","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 ","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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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 ,\n Manivannan Sadhasivam ,\n Marcel Holtmann ,\n Luiz Augusto von Dentz ,\n Shuai Zhang ","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 ,\n Luiz Augusto von Dentz ,\n Manivannan Sadhasivam ,\n Bartosz Golaszewski ,\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 ","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 \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 "}