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

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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>
This commit is contained in:
Xiaolei Wang 2020-11-10 18:13:11 +08:00 committed by Marcel Holtmann
parent f496297e76
commit 844c79bd59
1 changed files with 1 additions and 0 deletions
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drivers/bluetooth/hci_ll.c
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@ -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");