Bluetooth: hci_qca: Give enough time to ROME controller to bootup.

This patch enables enough time to ROME controller to bootup
after we bring the enable pin out of reset.

Fixes: 05ba533c5c11 ("Bluetooth: hci_qca: Add serdev support").
Signed-off-by: Balakrishna Godavarthi <bgodavar@codeaurora.org>
Reviewed-by: Rocky Liao <rjliao@codeaurora.org>
Tested-by: Rocky Liao <rjliao@codeaurora.org>
Tested-by: Claire Chang <tientzu@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 4ea995d610d2..a80c3bc90904 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -523,6 +523,8 @@ static int qca_open(struct hci_uart *hu)
                 qcadev = serdev_device_get_drvdata(hu->serdev);
                 if (qcadev->btsoc_type != QCA_WCN3990) {
                         gpiod_set_value_cansleep(qcadev->bt_en, 1);
+                        /* Controller needs time to bootup. */
+                        msleep(150);
                 } else {
                         hu->init_speed = qcadev->init_speed;
                         hu->oper_speed = qcadev->oper_speed;