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[rtw-next,1/4] wifi: rtw88: usb: Enable switching the RTL8814AU to USB 3

Message ID 39d594a4-7099-4a6c-97be-51a7ab614777@gmail.com
State New
Headers show
Series Improve RTL8814AU performance | expand

Commit Message

Bitterblue Smith March 13, 2025, 8:16 p.m. UTC 
The Realtek wifi 5 devices which support USB 3 are weird: when first
plugged in, they pretend to be USB 2. The driver needs to send some
commands to the device, which make it disappear and come back as a
USB 3 device.

The method used to switch the RTL8812AU also works for the RTL8814AU.

Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
---
 drivers/net/wireless/realtek/rtw88/usb.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/net/wireless/realtek/rtw88/usb.c b/drivers/net/wireless/realtek/rtw88/usb.c
index c8092fa0d9f1..a78f59fcde58 100644
--- a/drivers/net/wireless/realtek/rtw88/usb.c
+++ b/drivers/net/wireless/realtek/rtw88/usb.c
@@ -1094,7 +1094,8 @@  static int rtw_usb_switch_mode_new(struct rtw_dev *rtwdev)
 
 static bool rtw_usb3_chip_old(u8 chip_id)
 {
-	return chip_id == RTW_CHIP_TYPE_8812A;
+	return chip_id == RTW_CHIP_TYPE_8812A ||
+	       chip_id == RTW_CHIP_TYPE_8814A;
 }
 
 static bool rtw_usb3_chip_new(u8 chip_id)