driver: bluetooth: hci_qca:fix unable to load the BT driver

Some modules have BT_EN enabled via a hardware pull-up,
meaning it is not defined in the DTS and is not controlled
through the power sequence. In such cases, fall through
to follow the legacy flow.

Signed-off-by: Shuai Zhang <[email protected]>
Signed-off-by: Luiz Augusto von Dentz <[email protected]>

Author: Shuai Zhang

drivers/bluetooth/hci_qca.c

@@ -2392,10 +2392,17 @@ static int qca_serdev_probe(struct serdev_device *serdev)
 			 */
 			qcadev->bt_power->pwrseq = devm_pwrseq_get(&serdev->dev,
 								   "bluetooth");
-			if (IS_ERR(qcadev->bt_power->pwrseq))
-				return PTR_ERR(qcadev->bt_power->pwrseq);
 
-			break;
+			/*
+			 * Some modules have BT_EN enabled via a hardware pull-up,
+			 * meaning it is not defined in the DTS and is not controlled
+			 * through the power sequence. In such cases, fall through
+			 * to follow the legacy flow.
+			 */
+			if (IS_ERR(qcadev->bt_power->pwrseq))
+				qcadev->bt_power->pwrseq = NULL;
+			else
+				break;
 		}
 		fallthrough;
 	case QCA_WCN3950: