diff mbox series

[2/9] wifi: rtw89: 8852c: enable the interference cancellation of MU-MIMO on 6GHz

Message ID 20220908051257.25353-3-pkshih@realtek.com (mailing list archive)
State Accepted
Commit ef16380b69b85ff42e03900f6f7014fb413b42a8
Delegated to: Kalle Valo
Headers show
Series wifi: rtw89: complete basic features of 8852c | expand

Commit Message

Ping-Ke Shih Sept. 8, 2022, 5:12 a.m. UTC
Enable MU-MIMO interference cancellation (MUIC) to yield expected
performance of receiving MU-MIMO packets on 6GHz.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
---
 drivers/net/wireless/realtek/rtw89/reg.h      | 2 ++
 drivers/net/wireless/realtek/rtw89/rtw8852c.c | 5 +++++
 2 files changed, 7 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/wireless/realtek/rtw89/reg.h b/drivers/net/wireless/realtek/rtw89/reg.h
index d75894895dc7b..2537fee1125e5 100644
--- a/drivers/net/wireless/realtek/rtw89/reg.h
+++ b/drivers/net/wireless/realtek/rtw89/reg.h
@@ -3674,6 +3674,8 @@ 
 #define R_S1_ADDCK 0x3E00
 #define B_S1_ADDCK_I GENMASK(9, 0)
 #define B_S1_ADDCK_Q GENMASK(19, 10)
+#define R_MUIC 0x40F8
+#define B_MUIC_EN BIT(0)
 #define R_DCFO 0x4264
 #define B_DCFO GENMASK(1, 0)
 #define R_SEG0CSI 0x42AC
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852c.c b/drivers/net/wireless/realtek/rtw89/rtw8852c.c
index 32f5077c1bcb6..a30b723cc992e 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852c.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852c.c
@@ -1791,6 +1791,11 @@  static void rtw8852c_set_channel_bb(struct rtw89_dev *rtwdev,
 		}
 	}
 
+	if (chan->band_type == RTW89_BAND_6G)
+		rtw89_phy_write32_set(rtwdev, R_MUIC, B_MUIC_EN);
+	else
+		rtw89_phy_write32_clr(rtwdev, R_MUIC, B_MUIC_EN);
+
 	rtw8852c_bb_reset_all(rtwdev, phy_idx);
 }