1 files changed, 259 insertions, 52 deletions

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 45dffd2cb..8bfef7f81 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -7,6 +7,7 @@
  *
  *  Copyright (C) 2007 Texas Instruments, Inc.
  *  Copyright (c) 2010, 2012, 2018 The Linux Foundation. All rights reserved.
+ *  Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
  *
  *  Acknowledgements:
  *  This file is based on hci_ll.c, which was...
@@ -606,9 +607,18 @@ static int qca_open(struct hci_uart *hu)
 	if (hu->serdev) {
 		qcadev = serdev_device_get_drvdata(hu->serdev);
 
-		if (qca_is_wcn399x(qcadev->btsoc_type) ||
-		    qca_is_wcn6750(qcadev->btsoc_type))
+		switch (qcadev->btsoc_type) {
+		case QCA_WCN3988:
+		case QCA_WCN3990:
+		case QCA_WCN3991:
+		case QCA_WCN3998:
+		case QCA_WCN6750:
 			hu->init_speed = qcadev->init_speed;
+			break;
+
+		default:
+			break;
+		}
 
 		if (qcadev->oper_speed)
 			hu->oper_speed = qcadev->oper_speed;
@@ -1314,11 +1324,20 @@ static int qca_set_baudrate(struct hci_dev *hdev, uint8_t baudrate)
 		      msecs_to_jiffies(CMD_TRANS_TIMEOUT_MS));
 
 	/* Give the controller time to process the request */
-	if (qca_is_wcn399x(qca_soc_type(hu)) ||
-	    qca_is_wcn6750(qca_soc_type(hu)))
+	switch (qca_soc_type(hu)) {
+	case QCA_WCN3988:
+	case QCA_WCN3990:
+	case QCA_WCN3991:
+	case QCA_WCN3998:
+	case QCA_WCN6750:
+	case QCA_WCN6855:
+	case QCA_WCN7850:
 		usleep_range(1000, 10000);
-	else
+		break;
+
+	default:
 		msleep(300);
+	}
 
 	return 0;
 }
@@ -1391,12 +1410,20 @@ static unsigned int qca_get_speed(struct hci_uart *hu,
 
 static int qca_check_speeds(struct hci_uart *hu)
 {
-	if (qca_is_wcn399x(qca_soc_type(hu)) ||
-	    qca_is_wcn6750(qca_soc_type(hu))) {
+	switch (qca_soc_type(hu)) {
+	case QCA_WCN3988:
+	case QCA_WCN3990:
+	case QCA_WCN3991:
+	case QCA_WCN3998:
+	case QCA_WCN6750:
+	case QCA_WCN6855:
+	case QCA_WCN7850:
 		if (!qca_get_speed(hu, QCA_INIT_SPEED) &&
 		    !qca_get_speed(hu, QCA_OPER_SPEED))
 			return -EINVAL;
-	} else {
+		break;
+
+	default:
 		if (!qca_get_speed(hu, QCA_INIT_SPEED) ||
 		    !qca_get_speed(hu, QCA_OPER_SPEED))
 			return -EINVAL;
@@ -1425,13 +1452,29 @@ static int qca_set_speed(struct hci_uart *hu, enum qca_speed_type speed_type)
 		/* Disable flow control for wcn3990 to deassert RTS while
 		 * changing the baudrate of chip and host.
 		 */
-		if (qca_is_wcn399x(soc_type) ||
-		    qca_is_wcn6750(soc_type))
+		switch (soc_type) {
+		case QCA_WCN3988:
+		case QCA_WCN3990:
+		case QCA_WCN3991:
+		case QCA_WCN3998:
+		case QCA_WCN6750:
+		case QCA_WCN6855:
+		case QCA_WCN7850:
 			hci_uart_set_flow_control(hu, true);
+			break;
 
-		if (soc_type == QCA_WCN3990) {
+		default:
+			break;
+		}
+
+		switch (soc_type) {
+		case QCA_WCN3990:
 			reinit_completion(&qca->drop_ev_comp);
 			set_bit(QCA_DROP_VENDOR_EVENT, &qca->flags);
+			break;
+
+		default:
+			break;
 		}
 
 		qca_baudrate = qca_get_baudrate_value(speed);
@@ -1443,11 +1486,23 @@ static int qca_set_speed(struct hci_uart *hu, enum qca_speed_type speed_type)
 		host_set_baudrate(hu, speed);
 
 error:
-		if (qca_is_wcn399x(soc_type) ||
-		    qca_is_wcn6750(soc_type))
+		switch (soc_type) {
+		case QCA_WCN3988:
+		case QCA_WCN3990:
+		case QCA_WCN3991:
+		case QCA_WCN3998:
+		case QCA_WCN6750:
+		case QCA_WCN6855:
+		case QCA_WCN7850:
 			hci_uart_set_flow_control(hu, false);
+			break;
 
-		if (soc_type == QCA_WCN3990) {
+		default:
+			break;
+		}
+
+		switch (soc_type) {
+		case QCA_WCN3990:
 			/* Wait for the controller to send the vendor event
 			 * for the baudrate change command.
 			 */
@@ -1459,6 +1514,10 @@ error:
 			}
 
 			clear_bit(QCA_DROP_VENDOR_EVENT, &qca->flags);
+			break;
+
+		default:
+			break;
 		}
 	}
 
@@ -1620,12 +1679,20 @@ static int qca_regulator_init(struct hci_uart *hu)
 		}
 	}
 
-	if (qca_is_wcn399x(soc_type)) {
+	switch (soc_type) {
+	case QCA_WCN3988:
+	case QCA_WCN3990:
+	case QCA_WCN3991:
+	case QCA_WCN3998:
 		/* Forcefully enable wcn399x to enter in to boot mode. */
 		host_set_baudrate(hu, 2400);
 		ret = qca_send_power_pulse(hu, false);
 		if (ret)
 			return ret;
+		break;
+
+	default:
+		break;
 	}
 
 	/* For wcn6750 need to enable gpio bt_en */
@@ -1642,10 +1709,18 @@ static int qca_regulator_init(struct hci_uart *hu)
 
 	qca_set_speed(hu, QCA_INIT_SPEED);
 
-	if (qca_is_wcn399x(soc_type)) {
+	switch (soc_type) {
+	case QCA_WCN3988:
+	case QCA_WCN3990:
+	case QCA_WCN3991:
+	case QCA_WCN3998:
 		ret = qca_send_power_pulse(hu, true);
 		if (ret)
 			return ret;
+		break;
+
+	default:
+		break;
 	}
 
 	/* Now the device is in ready state to communicate with host.
@@ -1679,10 +1754,18 @@ static int qca_power_on(struct hci_dev *hdev)
 	if (!hu->serdev)
 		return 0;
 
-	if (qca_is_wcn399x(soc_type) ||
-	    qca_is_wcn6750(soc_type)) {
+	switch (soc_type) {
+	case QCA_WCN3988:
+	case QCA_WCN3990:
+	case QCA_WCN3991:
+	case QCA_WCN3998:
+	case QCA_WCN6750:
+	case QCA_WCN6855:
+	case QCA_WCN7850:
 		ret = qca_regulator_init(hu);
-	} else {
+		break;
+
+	default:
 		qcadev = serdev_device_get_drvdata(hu->serdev);
 		if (qcadev->bt_en) {
 			gpiod_set_value_cansleep(qcadev->bt_en, 1);
@@ -1705,6 +1788,7 @@ static int qca_setup(struct hci_uart *hu)
 	const char *firmware_name = qca_get_firmware_name(hu);
 	int ret;
 	struct qca_btsoc_version ver;
+	const char *soc_name;
 
 	ret = qca_check_speeds(hu);
 	if (ret)
@@ -1719,9 +1803,30 @@ static int qca_setup(struct hci_uart *hu)
 	 */
 	set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
 
-	bt_dev_info(hdev, "setting up %s",
-		qca_is_wcn399x(soc_type) ? "wcn399x" :
-		(soc_type == QCA_WCN6750) ? "wcn6750" : "ROME/QCA6390");
+	switch (soc_type) {
+	case QCA_WCN3988:
+	case QCA_WCN3990:
+	case QCA_WCN3991:
+	case QCA_WCN3998:
+		soc_name = "wcn399x";
+		break;
+
+	case QCA_WCN6750:
+		soc_name = "wcn6750";
+		break;
+
+	case QCA_WCN6855:
+		soc_name = "wcn6855";
+		break;
+
+	case QCA_WCN7850:
+		soc_name = "wcn7850";
+		break;
+
+	default:
+		soc_name = "ROME/QCA6390";
+	}
+	bt_dev_info(hdev, "setting up %s", soc_name);
 
 	qca->memdump_state = QCA_MEMDUMP_IDLE;
 
@@ -1732,15 +1837,33 @@ retry:
 
 	clear_bit(QCA_SSR_TRIGGERED, &qca->flags);
 
-	if (qca_is_wcn399x(soc_type) ||
-	    qca_is_wcn6750(soc_type)) {
-		set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
+	switch (soc_type) {
+	case QCA_WCN3988:
+	case QCA_WCN3990:
+	case QCA_WCN3991:
+	case QCA_WCN3998:
+	case QCA_WCN6750:
+	case QCA_WCN6855:
+	case QCA_WCN7850:
+
+		/* Set BDA quirk bit for reading BDA value from fwnode property
+		 * only if that property exist in DT.
+		 */
+		if (fwnode_property_present(dev_fwnode(hdev->dev.parent), "local-bd-address")) {
+			set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
+			bt_dev_info(hdev, "setting quirk bit to read BDA from fwnode later");
+		} else {
+			bt_dev_dbg(hdev, "local-bd-address` is not present in the devicetree so not setting quirk bit for BDA");
+		}
+
 		hci_set_aosp_capable(hdev);
 
 		ret = qca_read_soc_version(hdev, &ver, soc_type);
 		if (ret)
 			goto out;
-	} else {
+		break;
+
+	default:
 		qca_set_speed(hu, QCA_INIT_SPEED);
 	}
 
@@ -1754,8 +1877,17 @@ retry:
 		qca_baudrate = qca_get_baudrate_value(speed);
 	}
 
-	if (!(qca_is_wcn399x(soc_type) ||
-	     qca_is_wcn6750(soc_type))) {
+	switch (soc_type) {
+	case QCA_WCN3988:
+	case QCA_WCN3990:
+	case QCA_WCN3991:
+	case QCA_WCN3998:
+	case QCA_WCN6750:
+	case QCA_WCN6855:
+	case QCA_WCN7850:
+		break;
+
+	default:
 		/* Get QCA version information */
 		ret = qca_read_soc_version(hdev, &ver, soc_type);
 		if (ret)
@@ -1824,7 +1956,18 @@ static const struct hci_uart_proto qca_proto = {
 	.dequeue	= qca_dequeue,
 };
 
-static const struct qca_device_data qca_soc_data_wcn3990 = {
+static const struct qca_device_data qca_soc_data_wcn3988 __maybe_unused = {
+	.soc_type = QCA_WCN3988,
+	.vregs = (struct qca_vreg []) {
+		{ "vddio", 15000  },
+		{ "vddxo", 80000  },
+		{ "vddrf", 300000 },
+		{ "vddch0", 450000 },
+	},
+	.num_vregs = 4,
+};
+
+static const struct qca_device_data qca_soc_data_wcn3990 __maybe_unused = {
 	.soc_type = QCA_WCN3990,
 	.vregs = (struct qca_vreg []) {
 		{ "vddio", 15000  },
@@ -1835,7 +1978,7 @@ static const struct qca_device_data qca_soc_data_wcn3990 = {
 	.num_vregs = 4,
 };
 
-static const struct qca_device_data qca_soc_data_wcn3991 = {
+static const struct qca_device_data qca_soc_data_wcn3991 __maybe_unused = {
 	.soc_type = QCA_WCN3991,
 	.vregs = (struct qca_vreg []) {
 		{ "vddio", 15000  },
@@ -1847,7 +1990,7 @@ static const struct qca_device_data qca_soc_data_wcn3991 = {
 	.capabilities = QCA_CAP_WIDEBAND_SPEECH | QCA_CAP_VALID_LE_STATES,
 };
 
-static const struct qca_device_data qca_soc_data_wcn3998 = {
+static const struct qca_device_data qca_soc_data_wcn3998 __maybe_unused = {
 	.soc_type = QCA_WCN3998,
 	.vregs = (struct qca_vreg []) {
 		{ "vddio", 10000  },
@@ -1858,12 +2001,13 @@ static const struct qca_device_data qca_soc_data_wcn3998 = {
 	.num_vregs = 4,
 };
 
-static const struct qca_device_data qca_soc_data_qca6390 = {
+static const struct qca_device_data qca_soc_data_qca6390 __maybe_unused = {
 	.soc_type = QCA_QCA6390,
 	.num_vregs = 0,
+	.capabilities = QCA_CAP_WIDEBAND_SPEECH | QCA_CAP_VALID_LE_STATES,
 };
 
-static const struct qca_device_data qca_soc_data_wcn6750 = {
+static const struct qca_device_data qca_soc_data_wcn6750 __maybe_unused = {
 	.soc_type = QCA_WCN6750,
 	.vregs = (struct qca_vreg []) {
 		{ "vddio", 5000 },
@@ -1880,6 +2024,34 @@ static const struct qca_device_data qca_soc_data_wcn6750 = {
 	.capabilities = QCA_CAP_WIDEBAND_SPEECH | QCA_CAP_VALID_LE_STATES,
 };
 
+static const struct qca_device_data qca_soc_data_wcn6855 = {
+	.soc_type = QCA_WCN6855,
+	.vregs = (struct qca_vreg []) {
+		{ "vddio", 5000 },
+		{ "vddbtcxmx", 126000 },
+		{ "vddrfacmn", 12500 },
+		{ "vddrfa0p8", 102000 },
+		{ "vddrfa1p7", 302000 },
+		{ "vddrfa1p2", 257000 },
+	},
+	.num_vregs = 6,
+	.capabilities = QCA_CAP_WIDEBAND_SPEECH | QCA_CAP_VALID_LE_STATES,
+};
+
+static const struct qca_device_data qca_soc_data_wcn7850 __maybe_unused = {
+	.soc_type = QCA_WCN7850,
+	.vregs = (struct qca_vreg []) {
+		{ "vddio", 5000 },
+		{ "vddaon", 26000 },
+		{ "vdddig", 126000 },
+		{ "vddrfa0p8", 102000 },
+		{ "vddrfa1p2", 257000 },
+		{ "vddrfa1p9", 302000 },
+	},
+	.num_vregs = 6,
+	.capabilities = QCA_CAP_WIDEBAND_SPEECH | QCA_CAP_VALID_LE_STATES,
+};
+
 static void qca_power_shutdown(struct hci_uart *hu)
 {
 	struct qca_serdev *qcadev;
@@ -1905,11 +2077,18 @@ static void qca_power_shutdown(struct hci_uart *hu)
 
 	qcadev = serdev_device_get_drvdata(hu->serdev);
 
-	if (qca_is_wcn399x(soc_type)) {
+	switch (soc_type) {
+	case QCA_WCN3988:
+	case QCA_WCN3990:
+	case QCA_WCN3991:
+	case QCA_WCN3998:
 		host_set_baudrate(hu, 2400);
 		qca_send_power_pulse(hu, false);
 		qca_regulator_disable(qcadev);
-	} else if (soc_type == QCA_WCN6750) {
+		break;
+
+	case QCA_WCN6750:
+	case QCA_WCN6855:
 		gpiod_set_value_cansleep(qcadev->bt_en, 0);
 		msleep(100);
 		qca_regulator_disable(qcadev);
@@ -1917,7 +2096,9 @@ static void qca_power_shutdown(struct hci_uart *hu)
 			sw_ctrl_state = gpiod_get_value_cansleep(qcadev->sw_ctrl);
 			bt_dev_dbg(hu->hdev, "SW_CTRL is %d", sw_ctrl_state);
 		}
-	} else if (qcadev->bt_en) {
+		break;
+
+	default:
 		gpiod_set_value_cansleep(qcadev->bt_en, 0);
 	}
 
@@ -2042,10 +2223,19 @@ static int qca_serdev_probe(struct serdev_device *serdev)
 	if (!qcadev->oper_speed)
 		BT_DBG("UART will pick default operating speed");
 
-	if (data &&
-	    (qca_is_wcn399x(data->soc_type) ||
-	    qca_is_wcn6750(data->soc_type))) {
+	if (data)
 		qcadev->btsoc_type = data->soc_type;
+	else
+		qcadev->btsoc_type = QCA_ROME;
+
+	switch (qcadev->btsoc_type) {
+	case QCA_WCN3988:
+	case QCA_WCN3990:
+	case QCA_WCN3991:
+	case QCA_WCN3998:
+	case QCA_WCN6750:
+	case QCA_WCN6855:
+	case QCA_WCN7850:
 		qcadev->bt_power = devm_kzalloc(&serdev->dev,
 						sizeof(struct qca_power),
 						GFP_KERNEL);
@@ -2064,14 +2254,19 @@ static int qca_serdev_probe(struct serdev_device *serdev)
 
 		qcadev->bt_en = devm_gpiod_get_optional(&serdev->dev, "enable",
 					       GPIOD_OUT_LOW);
-		if (IS_ERR_OR_NULL(qcadev->bt_en) && data->soc_type == QCA_WCN6750) {
+		if (IS_ERR_OR_NULL(qcadev->bt_en) &&
+		    (data->soc_type == QCA_WCN6750 ||
+		     data->soc_type == QCA_WCN6855)) {
 			dev_err(&serdev->dev, "failed to acquire BT_EN gpio\n");
 			power_ctrl_enabled = false;
 		}
 
 		qcadev->sw_ctrl = devm_gpiod_get_optional(&serdev->dev, "swctrl",
 					       GPIOD_IN);
-		if (IS_ERR_OR_NULL(qcadev->sw_ctrl) && data->soc_type == QCA_WCN6750)
+		if (IS_ERR_OR_NULL(qcadev->sw_ctrl) &&
+		    (data->soc_type == QCA_WCN6750 ||
+		     data->soc_type == QCA_WCN6855 ||
+		     data->soc_type == QCA_WCN7850))
 			dev_warn(&serdev->dev, "failed to acquire SW_CTRL gpio\n");
 
 		qcadev->susclk = devm_clk_get_optional(&serdev->dev, NULL);
@@ -2085,12 +2280,9 @@ static int qca_serdev_probe(struct serdev_device *serdev)
 			BT_ERR("wcn3990 serdev registration failed");
 			return err;
 		}
-	} else {
-		if (data)
-			qcadev->btsoc_type = data->soc_type;
-		else
-			qcadev->btsoc_type = QCA_ROME;
+		break;
 
+	default:
 		qcadev->bt_en = devm_gpiod_get_optional(&serdev->dev, "enable",
 					       GPIOD_OUT_LOW);
 		if (IS_ERR_OR_NULL(qcadev->bt_en)) {
@@ -2146,12 +2338,24 @@ static void qca_serdev_remove(struct serdev_device *serdev)
 	struct qca_serdev *qcadev = serdev_device_get_drvdata(serdev);
 	struct qca_power *power = qcadev->bt_power;
 
-	if ((qca_is_wcn399x(qcadev->btsoc_type) ||
-	     qca_is_wcn6750(qcadev->btsoc_type)) &&
-	     power->vregs_on)
-		qca_power_shutdown(&qcadev->serdev_hu);
-	else if (qcadev->susclk)
-		clk_disable_unprepare(qcadev->susclk);
+	switch (qcadev->btsoc_type) {
+	case QCA_WCN3988:
+	case QCA_WCN3990:
+	case QCA_WCN3991:
+	case QCA_WCN3998:
+	case QCA_WCN6750:
+	case QCA_WCN6855:
+	case QCA_WCN7850:
+		if (power->vregs_on) {
+			qca_power_shutdown(&qcadev->serdev_hu);
+			break;
+		}
+		fallthrough;
+
+	default:
+		if (qcadev->susclk)
+			clk_disable_unprepare(qcadev->susclk);
+	}
 
 	hci_uart_unregister_device(&qcadev->serdev_hu);
 }
@@ -2328,10 +2532,13 @@ static const struct of_device_id qca_bluetooth_of_match[] = {
 	{ .compatible = "qcom,qca6174-bt" },
 	{ .compatible = "qcom,qca6390-bt", .data = &qca_soc_data_qca6390},
 	{ .compatible = "qcom,qca9377-bt" },
+	{ .compatible = "qcom,wcn3988-bt", .data = &qca_soc_data_wcn3988},
 	{ .compatible = "qcom,wcn3990-bt", .data = &qca_soc_data_wcn3990},
 	{ .compatible = "qcom,wcn3991-bt", .data = &qca_soc_data_wcn3991},
 	{ .compatible = "qcom,wcn3998-bt", .data = &qca_soc_data_wcn3998},
 	{ .compatible = "qcom,wcn6750-bt", .data = &qca_soc_data_wcn6750},
+	{ .compatible = "qcom,wcn6855-bt", .data = &qca_soc_data_wcn6855},
+	{ .compatible = "qcom,wcn7850-bt", .data = &qca_soc_data_wcn7850},
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, qca_bluetooth_of_match);