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: 05ba533 ("Bluetooth: hci_qca: Add serdev support"). Signed-off-by: Balakrishna Godavarthi <[email protected]> Reviewed-by: Rocky Liao <[email protected]> Tested-by: Rocky Liao <[email protected]> Tested-by: Claire Chang <[email protected]> Signed-off-by: Marcel Holtmann <[email protected]>
multipath-tcp · Apr 23, 2019 · 7f09d5a · 7f09d5a
1 parent 62611ab
commit 7f09d5a
Showing 1 changed file with 2 additions and 0 deletions.
diff --git 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;