[PATCH v2] wifi: rtl8xxxu: fixing IQK failures for rtl8192eu

From: Jun ASAKA
Date: Wed Nov 30 2022 - 21:40:02 EST

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Fixing "Path A RX IQK failed" and "Path B RX IQK failed"
issues for rtl8192eu chips by replacing the arguments with
the ones in the updated official driver as shown below.
1. https://github.com/Mange/rtl8192eu-linux-driver
2. vendor driver version: 4.3.1.1

Tested-by: Jun ASAKA <JunASAKA@xxxxxxxxxxxxx>
Signed-off-by: Jun ASAKA <JunASAKA@xxxxxxxxxxxxx>
---
v2:
- add detailed info about the newer version this patch used.
- no functional update.
---
.../realtek/rtl8xxxu/rtl8xxxu_8192e.c | 76 +++++++++++++------
1 file changed, 54 insertions(+), 22 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c
index b06508d0cd..82346500f2 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c
@@ -734,6 +734,12 @@ static int rtl8192eu_iqk_path_a(struct rtl8xxxu_priv *priv)
*/
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x00000000);
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_UNKNOWN_DF, 0x00180);
+
+ rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_WE_LUT, 0x800a0);
+ rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_RCK_OS, 0x20000);
+ rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_TXPA_G1, 0x0000f);
+ rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_TXPA_G2, 0x07f77);
+
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x80800000);

/* Path A IQK setting */
@@ -779,11 +785,16 @@ static int rtl8192eu_rx_iqk_path_a(struct rtl8xxxu_priv *priv)
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_WE_LUT, 0x800a0);
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_RCK_OS, 0x30000);
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_TXPA_G1, 0x0000f);
- rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_TXPA_G2, 0xf117b);
+ rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_TXPA_G2, 0xf1173);
+
+ rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_WE_LUT, 0x800a0);
+ rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_RCK_OS, 0x30000);
+ rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_TXPA_G1, 0x0000f);
+ rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_TXPA_G2, 0xf1173);

/* PA/PAD control by 0x56, and set = 0x0 */
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_UNKNOWN_DF, 0x00980);
- rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_UNKNOWN_56, 0x51000);
+ rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_UNKNOWN_56, 0x511e0);

/* Enter IQK mode */
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x80800000);
@@ -798,14 +809,14 @@ static int rtl8192eu_rx_iqk_path_a(struct rtl8xxxu_priv *priv)
rtl8xxxu_write32(priv, REG_TX_IQK_TONE_B, 0x38008c1c);
rtl8xxxu_write32(priv, REG_RX_IQK_TONE_B, 0x38008c1c);

- rtl8xxxu_write32(priv, REG_TX_IQK_PI_A, 0x82160c1f);
- rtl8xxxu_write32(priv, REG_RX_IQK_PI_A, 0x68160c1f);
+ rtl8xxxu_write32(priv, REG_TX_IQK_PI_A, 0x8216031f);
+ rtl8xxxu_write32(priv, REG_RX_IQK_PI_A, 0x6816031f);

/* LO calibration setting */
rtl8xxxu_write32(priv, REG_IQK_AGC_RSP, 0x0046a911);

/* One shot, path A LOK & IQK */
- rtl8xxxu_write32(priv, REG_IQK_AGC_PTS, 0xfa000000);
+ rtl8xxxu_write32(priv, REG_IQK_AGC_PTS, 0xf9000000);
rtl8xxxu_write32(priv, REG_IQK_AGC_PTS, 0xf8000000);

mdelay(10);
@@ -836,11 +847,16 @@ static int rtl8192eu_rx_iqk_path_a(struct rtl8xxxu_priv *priv)
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_WE_LUT, 0x800a0);
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_RCK_OS, 0x30000);
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_TXPA_G1, 0x0000f);
- rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_TXPA_G2, 0xf7ffa);
+ rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_TXPA_G2, 0xf7ff2);
+
+ rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_WE_LUT, 0x800a0);
+ rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_RCK_OS, 0x30000);
+ rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_TXPA_G1, 0x0000f);
+ rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_TXPA_G2, 0xf7ff2);

/* PA/PAD control by 0x56, and set = 0x0 */
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_UNKNOWN_DF, 0x00980);
- rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_UNKNOWN_56, 0x51000);
+ rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_UNKNOWN_56, 0x510e0);

/* Enter IQK mode */
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x80800000);
@@ -854,14 +870,14 @@ static int rtl8192eu_rx_iqk_path_a(struct rtl8xxxu_priv *priv)
rtl8xxxu_write32(priv, REG_TX_IQK_TONE_B, 0x38008c1c);
rtl8xxxu_write32(priv, REG_RX_IQK_TONE_B, 0x38008c1c);

- rtl8xxxu_write32(priv, REG_TX_IQK_PI_A, 0x82160c1f);
- rtl8xxxu_write32(priv, REG_RX_IQK_PI_A, 0x28160c1f);
+ rtl8xxxu_write32(priv, REG_TX_IQK_PI_A, 0x821608ff);
+ rtl8xxxu_write32(priv, REG_RX_IQK_PI_A, 0x281608ff);

/* LO calibration setting */
rtl8xxxu_write32(priv, REG_IQK_AGC_RSP, 0x0046a891);

/* One shot, path A LOK & IQK */
- rtl8xxxu_write32(priv, REG_IQK_AGC_PTS, 0xfa000000);
+ rtl8xxxu_write32(priv, REG_IQK_AGC_PTS, 0xf9000000);
rtl8xxxu_write32(priv, REG_IQK_AGC_PTS, 0xf8000000);

mdelay(10);
@@ -891,22 +907,28 @@ static int rtl8192eu_iqk_path_b(struct rtl8xxxu_priv *priv)

rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x00000000);
rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_UNKNOWN_DF, 0x00180);
- rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x80800000);

- rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x00000000);
+ rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_WE_LUT, 0x800a0);
+ rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_RCK_OS, 0x20000);
+ rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_TXPA_G1, 0x0000f);
+ rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_TXPA_G2, 0x07f77);
+
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x80800000);

+ // rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x00000000);
+ // rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x80800000);
+
/* Path B IQK setting */
rtl8xxxu_write32(priv, REG_TX_IQK_TONE_A, 0x38008c1c);
rtl8xxxu_write32(priv, REG_RX_IQK_TONE_A, 0x38008c1c);
rtl8xxxu_write32(priv, REG_TX_IQK_TONE_B, 0x18008c1c);
rtl8xxxu_write32(priv, REG_RX_IQK_TONE_B, 0x38008c1c);

- rtl8xxxu_write32(priv, REG_TX_IQK_PI_B, 0x821403e2);
+ rtl8xxxu_write32(priv, REG_TX_IQK_PI_B, 0x82140303);
rtl8xxxu_write32(priv, REG_RX_IQK_PI_B, 0x68160000);

/* LO calibration setting */
- rtl8xxxu_write32(priv, REG_IQK_AGC_RSP, 0x00492911);
+ rtl8xxxu_write32(priv, REG_IQK_AGC_RSP, 0x00462911);

/* One shot, path A LOK & IQK */
rtl8xxxu_write32(priv, REG_IQK_AGC_PTS, 0xfa000000);
@@ -942,11 +964,16 @@ static int rtl8192eu_rx_iqk_path_b(struct rtl8xxxu_priv *priv)
rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_WE_LUT, 0x800a0);
rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_RCK_OS, 0x30000);
rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_TXPA_G1, 0x0000f);
- rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_TXPA_G2, 0xf117b);
+ rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_TXPA_G2, 0xf1173);
+
+ rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_WE_LUT, 0x800a0);
+ rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_RCK_OS, 0x30000);
+ rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_TXPA_G1, 0x0000f);
+ rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_TXPA_G2, 0xf1173);

/* PA/PAD control by 0x56, and set = 0x0 */
rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_UNKNOWN_DF, 0x00980);
- rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_UNKNOWN_56, 0x51000);
+ rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_UNKNOWN_56, 0x511e0);

/* Enter IQK mode */
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x80800000);
@@ -961,8 +988,8 @@ static int rtl8192eu_rx_iqk_path_b(struct rtl8xxxu_priv *priv)
rtl8xxxu_write32(priv, REG_TX_IQK_TONE_B, 0x18008c1c);
rtl8xxxu_write32(priv, REG_RX_IQK_TONE_B, 0x38008c1c);

- rtl8xxxu_write32(priv, REG_TX_IQK_PI_B, 0x82160c1f);
- rtl8xxxu_write32(priv, REG_RX_IQK_PI_B, 0x68160c1f);
+ rtl8xxxu_write32(priv, REG_TX_IQK_PI_B, 0x8216031f);
+ rtl8xxxu_write32(priv, REG_RX_IQK_PI_B, 0x6816031f);

/* LO calibration setting */
rtl8xxxu_write32(priv, REG_IQK_AGC_RSP, 0x0046a911);
@@ -1002,11 +1029,16 @@ static int rtl8192eu_rx_iqk_path_b(struct rtl8xxxu_priv *priv)
rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_WE_LUT, 0x800a0);
rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_RCK_OS, 0x30000);
rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_TXPA_G1, 0x0000f);
- rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_TXPA_G2, 0xf7ffa);
+ rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_TXPA_G2, 0xf7ff2);
+
+ rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_WE_LUT, 0x800a0);
+ rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_RCK_OS, 0x30000);
+ rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_TXPA_G1, 0x0000f);
+ rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_TXPA_G2, 0xf7ff2);

/* PA/PAD control by 0x56, and set = 0x0 */
rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_UNKNOWN_DF, 0x00980);
- rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_UNKNOWN_56, 0x51000);
+ rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_UNKNOWN_56, 0x510e0);

/* Enter IQK mode */
rtl8xxxu_write32(priv, REG_FPGA0_IQK, 0x80800000);
@@ -1020,8 +1052,8 @@ static int rtl8192eu_rx_iqk_path_b(struct rtl8xxxu_priv *priv)
rtl8xxxu_write32(priv, REG_TX_IQK_TONE_B, 0x38008c1c);
rtl8xxxu_write32(priv, REG_RX_IQK_TONE_B, 0x18008c1c);

- rtl8xxxu_write32(priv, REG_TX_IQK_PI_A, 0x82160c1f);
- rtl8xxxu_write32(priv, REG_RX_IQK_PI_A, 0x28160c1f);
+ rtl8xxxu_write32(priv, REG_TX_IQK_PI_A, 0x821608ff);
+ rtl8xxxu_write32(priv, REG_RX_IQK_PI_A, 0x281608ff);

/* LO calibration setting */
rtl8xxxu_write32(priv, REG_IQK_AGC_RSP, 0x0046a891);
--
2.38.1

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