Hi Mani,
Tested with WCN685x on both M.2 card (pwrseq-pcie-m2) and direct attach
(pwrseq-qcom-wcn). BT works correctly in both cases.
Tested-by: Wei Deng <wei.deng@oss.qualcomm.com>
On 5/8/2026 12:06 AM, Manivannan Sadhasivam via B4 Relay wrote:
> 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@oss.qualcomm.com>
> ---
> 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@oss.qualcomm.com
>
> ---
> 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@oss.qualcomm.com>
>
>
--
Best Regards,
Wei Deng