diff options
Diffstat (limited to 'drivers/bluetooth')
| -rw-r--r-- | drivers/bluetooth/hci_qca.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index 74f5fede0274..d98ed0442201 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -168,6 +168,7 @@ struct qca_serdev { static int qca_power_setup(struct hci_uart *hu, bool on); static void qca_power_shutdown(struct hci_uart *hu); +static int qca_power_off(struct hci_dev *hdev); static void __serial_clock_on(struct tty_struct *tty) { @@ -1099,8 +1100,26 @@ static int qca_set_speed(struct hci_uart *hu, enum qca_speed_type speed_type) static int qca_wcn3990_init(struct hci_uart *hu) { struct hci_dev *hdev = hu->hdev; + struct qca_serdev *qcadev; int ret; + /* Check for vregs status, may be hci down has turned + * off the voltage regulator. + */ + qcadev = serdev_device_get_drvdata(hu->serdev); + if (!qcadev->bt_power->vregs_on) { + serdev_device_close(hu->serdev); + ret = qca_power_setup(hu, true); + if (ret) + return ret; + + ret = serdev_device_open(hu->serdev); + if (ret) { + bt_dev_err(hu->hdev, "failed to open port"); + return ret; + } + } + /* Forcefully enable wcn3990 to enter in to boot mode. */ host_set_baudrate(hu, 2400); ret = qca_send_power_pulse(hdev, QCA_WCN3990_POWEROFF_PULSE); @@ -1152,6 +1171,12 @@ static int qca_setup(struct hci_uart *hu) if (qcadev->btsoc_type == QCA_WCN3990) { bt_dev_info(hdev, "setting up wcn3990"); + + /* Enable NON_PERSISTENT_SETUP QUIRK to ensure to execute + * setup for every hci up. + */ + set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks); + hu->hdev->shutdown = qca_power_off; ret = qca_wcn3990_init(hu); if (ret) return ret; @@ -1242,6 +1267,14 @@ static void qca_power_shutdown(struct hci_uart *hu) qca_power_setup(hu, false); } +static int qca_power_off(struct hci_dev *hdev) +{ + struct hci_uart *hu = hci_get_drvdata(hdev); + + qca_power_shutdown(hu); + return 0; +} + static int qca_enable_regulator(struct qca_vreg vregs, struct regulator *regulator) { |