Bluetooth: hci_ll: add a small delay for wl1271 enable bt_en

When using the wl1271 Bluetooth function of am335x, it is found that the
Bluetooth module cannot respond in time after Bluetooth is enabled, and
a small delay is needed to work normally, so whether to add a small
mdelay.

Signed-off-by: Xiaolei Wang <xiaolei.wang@windriver.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

diff --git a/drivers/bluetooth/hci_ll.c b/drivers/bluetooth/hci_ll.c
index 8bfe024..eb1e736 100644 (file)
--- a/drivers/bluetooth/hci_ll.c
+++ b/drivers/bluetooth/hci_ll.c
@@ -626,6 +626,7 @@ static int ll_setup(struct hci_uart *hu)
                gpiod_set_value_cansleep(lldev->enable_gpio, 0);
                msleep(5);
                gpiod_set_value_cansleep(lldev->enable_gpio, 1);
+               mdelay(100);
                err = serdev_device_wait_for_cts(serdev, true, 200);
                if (err) {
                        bt_dev_err(hu->hdev, "Failed to get CTS");