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When the power is controlled by a power sequencer, whether the host can gate it depends on the hardware wiring, e.g. the presence of the BT_EN or W_DISABLE2# line. Query the generic pwrseq_is_controllable() helper whenever the BT power comes from a sequencer, regardless of which provider it is (M2, WCN, ...). If the power is not controllable, clear 'bt_en_available' so that HCI_QUIRK_NON_PERSISTENT_SETUP is not set. This is based on Manivannan's original patch that keyed the decision off the W_DISABLE2# device tree property, it now uses the generic pwrseq helper and handles the always-on case. Signed-off-by: Loic Poulain --- drivers/bluetooth/hci_qca.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index 17f436484e1e74d1dd690ada22134315abb767c4..81fa41915363ce577ad7c6f25fe1b0a69536d462 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -2548,7 +2548,20 @@ static int qca_serdev_probe(struct serdev_device *serdev) return PTR_ERR(qcadev->susclk); } } - + + if (qcadev->bt_power->pwrseq) { + bt_en_available = pwrseq_is_controllable(qcadev->bt_power->pwrseq); + if (!bt_en_available) { + /* The host cannot gate the BT power individually. + * Treat it as always-on and drop the pwrseq handle. + * The descriptor itself is still released by devres, + * so dropping the handle here is not a leak. + */ + pwrseq_power_on(qcadev->bt_power->pwrseq); + qcadev->bt_power->pwrseq = NULL; + } + } + err = hci_uart_register_device(&qcadev->serdev_hu, &qca_proto); if (err) { BT_ERR("serdev registration failed"); -- 2.34.1