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authorPing-Ke Shih <pkshih@realtek.com>2023-08-08 08:54:26 +0800
committerJohannes Berg <johannes.berg@intel.com>2023-08-08 12:52:07 +0200
commitb74bb07cdab6859e1a3fc9fe7351052176322ddf (patch)
treefa56b0bc68c342a534d4d71b55e2f1d000e8a44f
parent017e9420c1ca19bc169e20fa749709723eaf1eb7 (diff)
downloadlinux-b74bb07cdab6859e1a3fc9fe7351052176322ddf.tar.gz
wifi: rtw89: fix 8852AE disconnection caused by RX full flags
RX full flags are raised if certain types of RX FIFO are full, and then drop all following MPDU of AMPDU. In order to resume to receive MPDU when RX FIFO becomes available, we clear the register bits by the commit a0d99ebb3ecd ("wifi: rtw89: initialize DMA of CMAC"). But, 8852AE needs more settings to support this. To quickly fix disconnection problem, revert the behavior as before. Fixes: a0d99ebb3ecd ("wifi: rtw89: initialize DMA of CMAC") Reported-by: Damian B <bronecki.damian@gmail.com> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217710 Cc: <Stable@vger.kernel.org> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Tested-by: Damian B <bronecki.damian@gmail.com> Link: https://lore.kernel.org/r/20230808005426.5327-1-pkshih@realtek.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
-rw-r--r--drivers/net/wireless/realtek/rtw89/mac.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/realtek/rtw89/mac.c b/drivers/net/wireless/realtek/rtw89/mac.c
index b114babec698c..c93e6250cb8b4 100644
--- a/drivers/net/wireless/realtek/rtw89/mac.c
+++ b/drivers/net/wireless/realtek/rtw89/mac.c
@@ -2524,7 +2524,7 @@ static int cmac_dma_init(struct rtw89_dev *rtwdev, u8 mac_idx)
u32 reg;
int ret;
- if (chip_id != RTL8852A && chip_id != RTL8852B)
+ if (chip_id != RTL8852B)
return 0;
ret = rtw89_mac_check_mac_en(rtwdev, mac_idx, RTW89_CMAC_SEL);