[PATCH v2 0/9] Fixes/improvements for the PCI M.2 power sequencing driver

[Manivannan Sadhasivam via B4 Relay]

Hi,

This series has several key improvements and fixes to the M.2 power sequencing
driver and also the BT HCI_QCA driver. Notably, this series allows the M.2 power
sequencing driver to work with more M.2 cards, not just WCN7850. It also allows
the BT HCI_QCA driver to detect whether it can control BT_EN (or W_DISABLE2#)
signal on the connector and set the HCI_QUIRK_NON_PERSISTENT_SETUP quirk.

Testing
=======

This series was tested on Lenovo Thinkpad T14s together with the below DTS
patches:
https://github.com/Mani-Sadhasivam/linux/commit/29534d15307551b2355eb254601dec511169f0aa
https://github.com/Mani-Sadhasivam/linux/commit/f4eaacfe647674be200847092b43cdef2194fc55

Merge Strategy
==============

Since the BT HCI_QCA changes depend on the pwrseq changes, it would be good to
merge the whole series through pwrseq tree or through an immutable branch.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxxxxxxxx>
---
Changes in v2:
- Dropped the pwrseq_is_fixed() change in favor or exporting pwrseq device's dev
  pointer and using it to check for the presence of W_DISABLE2# property
- Dropped the BT_EN fix for the Qcom WCN devices since it will be handled
  separately
- Collected tags
- Link to v1: https://patch.msgid.link/20260422-pwrseq-m2-bt-v1-0-720d02545a64@xxxxxxxxxxxxxxxx

---
Manivannan Sadhasivam (9):
      power: sequencing: pcie-m2: Fix inconsistent function prefixes
      power: sequencing: pcie-m2: Allow creating serdev for multiple PCI devices
      power: sequencing: pcie-m2: Improve PCI device ID check
      power: sequencing: pcie-m2: Create serdev for PCI devices present before probe
      power: sequencing: pcie-m2: Create BT node based on the pci_device_id[] table
      Bluetooth: hci_qca: Add M.2 Bluetooth device support using pwrseq
      Bluetooth: hci_qca: Rename 'power_ctrl_enabled' to 'bt_en_available'
      power: sequencing: Add an API to return the pwrseq device's 'dev' pointer
      Bluetooth: hci_qca: Set 'bt_en_available' based on W_DISABLE2# presence in M.2 connector

 drivers/bluetooth/hci_qca.c               |  28 +++-
 drivers/power/sequencing/core.c           |   9 ++
 drivers/power/sequencing/pwrseq-pcie-m2.c | 234 ++++++++++++++++++++++--------
 include/linux/pwrseq/consumer.h           |   7 +
 4 files changed, 217 insertions(+), 61 deletions(-)
---
base-commit: 254f49634ee16a731174d2ae34bc50bd5f45e731
change-id: 20260422-pwrseq-m2-bt-abdaa71094eb

Best regards,
--  
Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxxxxxxxx>