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Subject[PATCH 5.4 072/255] wifi: rtl8xxxu: gen2: Fix mistake in path B IQ calibration
Date
From: Bitterblue Smith <rtl8821cerfe2@gmail.com>

[ Upstream commit e963a19c64ac0d2f8785d36a27391abd91ac77aa ]

Found by comparing with the vendor driver. Currently this affects
only the RTL8192EU, which is the only gen2 chip with 2 TX paths
supported by this driver. It's unclear what kind of effect the
mistake had in practice, since I don't have any RTL8192EU devices
to test it.

Fixes: e1547c535ede ("rtl8xxxu: First stab at adding IQK calibration for 8723bu parts")
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/30a59f3a-cfa9-8379-7af0-78a8f4c77cfd@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
index 977ebb647c0e..b472dc4c551e 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
@@ -2926,12 +2926,12 @@ bool rtl8xxxu_gen2_simularity_compare(struct rtl8xxxu_priv *priv,
}

if (!(simubitmap & 0x30) && priv->tx_paths > 1) {
- /* path B RX OK */
+ /* path B TX OK */
for (i = 4; i < 6; i++)
result[3][i] = result[c1][i];
}

- if (!(simubitmap & 0x30) && priv->tx_paths > 1) {
+ if (!(simubitmap & 0xc0) && priv->tx_paths > 1) {
/* path B RX OK */
for (i = 6; i < 8; i++)
result[3][i] = result[c1][i];
--
2.35.1


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