Patch "Bluetooth: btrtl: Add the support for RTL8851B" has been added to the 6.3-stable tree

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This is a note to let you know that I've just added the patch titled

    Bluetooth: btrtl: Add the support for RTL8851B

to the 6.3-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     bluetooth-btrtl-add-the-support-for-rtl8851b.patch
and it can be found in the queue-6.3 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 45c4ea0e964deb1b15be7278e506d47fb63bf4d7
Author: Max Chou <max.chou@xxxxxxxxxxx>
Date:   Tue Apr 18 13:43:54 2023 +0800

    Bluetooth: btrtl: Add the support for RTL8851B
    
    [ Upstream commit 7948fe1c92d92313eea5453f83deb7f0141355e8 ]
    
    Add the support for RTL8851B BT controller on USB interface.
    The necessary firmware will be submitted to linux-firmware project.
    
    Note that the Bluetooth devices WITH the VID=0x0bda would be set the
    feature quirk in btrtl_setup_realtek(). It's able to ignore the
    feature flag set for the specific VID and PID in blacklist_table[] of
    btusb.c. (check [1])
    
    If Realtek Bluetooth chips WITHOUT the VID=0x0bda, it shall be added
    the feature flag for the specific VID and PID in blacklist_table[] of
    btusb.c. (check [2])
    
    [1] '9ab9235fe5cf ("Bluetooth: btrtl: Enable WBS for the specific
        Realtek devices")'
    [2] '73280f13c9bb ("Bluetooth: btusb: Add the more support IDs for
        Realtek RTL8822CE")'
    
    The device info from /sys/kernel/debug/usb/devices as below.
    
    T:  Bus=03 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 33 Spd=480  MxCh= 0
    D:  Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
    P:  Vendor=0bda ProdID=b851 Rev= 0.00
    S:  Manufacturer=Realtek
    S:  Product=802.11ax WLAN Adapter
    S:  SerialNumber=00E04C885A01
    C:* #Ifs= 3 Cfg#= 1 Atr=80 MxPwr=500mA
    A:  FirstIf#= 0 IfCount= 2 Cls=e0(wlcon) Sub=01 Prot=01
    I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
    E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=1ms
    E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
    E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
    E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
    I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
    E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
    E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
    I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
    E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
    E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
    I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
    E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
    E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
    I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
    E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
    E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
    I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
    E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
    E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms
    I:* If#= 2 Alt= 0 #EPs= 8 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
    E:  Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E:  Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E:  Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E:  Ad=07(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E:  Ad=09(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E:  Ad=0a(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E:  Ad=0b(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E:  Ad=0c(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    
    Signed-off-by: Max Chou <max.chou@xxxxxxxxxxx>
    Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index 7061621faeb0c..4fbb282cac4b5 100644
--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -28,6 +28,7 @@
 #define RTL_ROM_LMP_8761A	0x8761
 #define RTL_ROM_LMP_8822B	0x8822
 #define RTL_ROM_LMP_8852A	0x8852
+#define RTL_ROM_LMP_8851B	0x8851
 #define RTL_CONFIG_MAGIC	0x8723ab55
 
 #define IC_MATCH_FL_LMPSUBV	(1 << 0)
@@ -56,6 +57,7 @@ enum btrtl_chip_id {
 	CHIP_ID_8852A = 18,
 	CHIP_ID_8852B = 20,
 	CHIP_ID_8852C = 25,
+	CHIP_ID_8851B = 36,
 };
 
 struct id_table {
@@ -244,6 +246,14 @@ static const struct id_table ic_id_table[] = {
 	  .has_msft_ext = true,
 	  .fw_name  = "rtl_bt/rtl8852cu_fw.bin",
 	  .cfg_name = "rtl_bt/rtl8852cu_config" },
+
+	/* 8851B */
+	{ IC_INFO(RTL_ROM_LMP_8851B, 0xb, 0xc, HCI_USB),
+	  .config_needed = false,
+	  .has_rom_version = true,
+	  .has_msft_ext = false,
+	  .fw_name  = "rtl_bt/rtl8851bu_fw.bin",
+	  .cfg_name = "rtl_bt/rtl8851bu_config" },
 	};
 
 static const struct id_table *btrtl_match_ic(u16 lmp_subver, u16 hci_rev,
@@ -359,6 +369,7 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev,
 		{ RTL_ROM_LMP_8852A, 18 },	/* 8852A */
 		{ RTL_ROM_LMP_8852A, 20 },	/* 8852B */
 		{ RTL_ROM_LMP_8852A, 25 },	/* 8852C */
+		{ RTL_ROM_LMP_8851B, 36 },	/* 8851B */
 	};
 
 	min_size = sizeof(struct rtl_epatch_header) + sizeof(extension_sig) + 3;
@@ -848,6 +859,7 @@ int btrtl_download_firmware(struct hci_dev *hdev,
 	case RTL_ROM_LMP_8822B:
 	case RTL_ROM_LMP_8852A:
 	case RTL_ROM_LMP_8703B:
+	case RTL_ROM_LMP_8851B:
 		return btrtl_setup_rtl8723b(hdev, btrtl_dev);
 	default:
 		rtl_dev_info(hdev, "assuming no firmware upload needed");
@@ -872,6 +884,7 @@ void btrtl_set_quirks(struct hci_dev *hdev, struct btrtl_device_info *btrtl_dev)
 	case CHIP_ID_8852A:
 	case CHIP_ID_8852B:
 	case CHIP_ID_8852C:
+	case CHIP_ID_8851B:
 		set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
 		set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
 
@@ -1082,3 +1095,5 @@ MODULE_FIRMWARE("rtl_bt/rtl8852bu_fw.bin");
 MODULE_FIRMWARE("rtl_bt/rtl8852bu_config.bin");
 MODULE_FIRMWARE("rtl_bt/rtl8852cu_fw.bin");
 MODULE_FIRMWARE("rtl_bt/rtl8852cu_config.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8851bu_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8851bu_config.bin");



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