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From:   <max.chou@realtek.com>
To:     <marcel@holtmann.org>, <johan.hedberg@gmail.com>
CC:     <linux-bluetooth@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <alex_lu@realsil.com.cn>, <hildawu@realtek.com>,
        <kidman@realtek.com>
Subject: [PATCH] Bluetooth: hci_h5: btrtl: Add support for RTL8822C
Date:   Thu, 13 Feb 2020 15:51:40 +0800
Message-ID: <20200213075140.25105-1-max.chou@realtek.com>
MIME-Version: 1.0
Content-Type: text/plain
Sender: linux-bluetooth-owner@vger.kernel.org
Precedence: bulk

From: Max Chou <max.chou@realtek.com>

Add new compatible and FW loading support for RTL8822C.

Signed-off-by: Max Chou <max.chou@realtek.com>
---
 drivers/bluetooth/Kconfig  |  2 +-
 drivers/bluetooth/btrtl.c  | 12 ++++++++++++
 drivers/bluetooth/hci_h5.c | 18 +++++++++++++++++-
 3 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/drivers/bluetooth/Kconfig b/drivers/bluetooth/Kconfig
index f7aa2dc1ff85..052020b07e56 100644
--- a/drivers/bluetooth/Kconfig
+++ b/drivers/bluetooth/Kconfig
@@ -211,7 +211,7 @@ config BT_HCIUART_RTL
 	depends on BT_HCIUART
 	depends on BT_HCIUART_SERDEV
 	depends on GPIOLIB
-	depends on ACPI
+	depends on (ACPI || SERIAL_DEV_CTRL_TTYPORT)
 	select BT_HCIUART_3WIRE
 	select BT_RTL
 	help
diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index 577cfa3329db..67f4bc21e7c5 100644
--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -136,6 +136,18 @@ static const struct id_table ic_id_table[] = {
 	  .fw_name  = "rtl_bt/rtl8761a_fw.bin",
 	  .cfg_name = "rtl_bt/rtl8761a_config" },
 
+	/* 8822C with UART interface */
+	{ .match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_HCIREV |
+			 IC_MATCH_FL_HCIBUS,
+	  .lmp_subver = RTL_ROM_LMP_8822B,
+	  .hci_rev = 0x000c,
+	  .hci_ver = 0x0a,
+	  .hci_bus = HCI_UART,
+	  .config_needed = true,
+	  .has_rom_version = true,
+	  .fw_name  = "rtl_bt/rtl8822cs_fw.bin",
+	  .cfg_name = "rtl_bt/rtl8822cs_config" },
+
 	/* 8822C with USB interface */
 	{ IC_INFO(RTL_ROM_LMP_8822B, 0xc),
 	  .config_needed = false,
diff --git a/drivers/bluetooth/hci_h5.c b/drivers/bluetooth/hci_h5.c
index 0b14547482a7..666b0c009004 100644
--- a/drivers/bluetooth/hci_h5.c
+++ b/drivers/bluetooth/hci_h5.c
@@ -11,6 +11,7 @@
 #include <linux/gpio/consumer.h>
 #include <linux/kernel.h>
 #include <linux/mod_devicetable.h>
+#include <linux/of_device.h>
 #include <linux/serdev.h>
 #include <linux/skbuff.h>
 
@@ -786,6 +787,7 @@ static const struct hci_uart_proto h5p = {
 static int h5_serdev_probe(struct serdev_device *serdev)
 {
 	const struct acpi_device_id *match;
+	const void *data;
 	struct device *dev = &serdev->dev;
 	struct h5 *h5;
 
@@ -799,7 +801,11 @@ static int h5_serdev_probe(struct serdev_device *serdev)
 	h5->serdev_hu.serdev = serdev;
 	serdev_device_set_drvdata(serdev, h5);
 
-	if (has_acpi_companion(dev)) {
+	data = of_device_get_match_data(dev);
+	if (data)
+		h5->vnd = (const struct h5_vnd *)data;
+
+	if (!data && has_acpi_companion(dev)) {
 		match = acpi_match_device(dev->driver->acpi_match_table, dev);
 		if (!match)
 			return -ENODEV;
@@ -1003,6 +1009,15 @@ static const struct dev_pm_ops h5_serdev_pm_ops = {
 	SET_SYSTEM_SLEEP_PM_OPS(h5_serdev_suspend, h5_serdev_resume)
 };
 
+static const struct of_device_id rtl_bluetooth_of_match[] = {
+#ifdef CONFIG_BT_HCIUART_RTL
+	{ .compatible = "realtek,rtl8822cs-bt",
+	  .data = (const void *)&rtl_vnd },
+#endif
+	{ },
+};
+MODULE_DEVICE_TABLE(of, rtl_bluetooth_of_match);
+
 static struct serdev_device_driver h5_serdev_driver = {
 	.probe = h5_serdev_probe,
 	.remove = h5_serdev_remove,
@@ -1010,6 +1025,7 @@ static struct serdev_device_driver h5_serdev_driver = {
 		.name = "hci_uart_h5",
 		.acpi_match_table = ACPI_PTR(h5_acpi_match),
 		.pm = &h5_serdev_pm_ops,
+		.of_match_table = rtl_bluetooth_of_match,
 	},
 };
 
-- 
2.17.1