Commit f3863f1d authored Mar 07, 2018 by Marcel Holtmann

Bluetooth: hci_bcm: Use default baud rate if missing shutdown GPIO

In case the shutdown GPIO is not wired up, it is impossible to reset the
Bluetooth controller to its original state. This include the initial
default baud rate which leads to issues when reloading the module or
when something unexpected happens. To avoid any kind of runtime
deadlocks, stick with the initial default baud rate.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

parent fb2d466b

drivers/bluetooth/hci_bcm.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -1146,6 +1146,12 @@ static int bcm_serdev_probe(struct serdev_device *serdev)
		if (err)
		return err;

		if (!bcmdev->shutdown) {
		dev_warn(&serdev->dev,
		"No reset resource, using default baud rate\n");
		bcmdev->oper_speed = bcmdev->init_speed;
		}

		err = bcm_gpio_set_power(bcmdev, false);
		if (err)
		dev_err(&serdev->dev, "Failed to power down\n");