mt76x0: unify freq offset parsing

Unify frequency offset parsing with mt76x2 driver using
eeprom utility routines available in mt76x02-lib module
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt76x0/debugfs.c

@@ -102,7 +102,8 @@ mt76x0_eeprom_param_read(struct seq_file *file, void *data)
 	u16 val;
 	int i;
 
-	seq_printf(file, "RF freq offset: %hhx\n", dev->ee->rf_freq_off);
+	seq_printf(file, "RF freq offset: %hhx\n",
+		   dev->caldata.freq_offset);
 	seq_printf(file, "RSSI offset: %hhx %hhx\n",
 		   dev->caldata.rssi_offset[0], dev->caldata.rssi_offset[1]);
 	seq_printf(file, "Temperature offset: %hhx\n",

drivers/net/wireless/mediatek/mt76/mt76x0/eeprom.c

@@ -103,23 +103,21 @@ static void mt76x0_set_temp_offset(struct mt76x0_dev *dev)
 		dev->caldata.temp_offset = -10;
 }
 
-static void
-mt76x0_set_rf_freq_off(struct mt76x0_dev *dev, u8 *eeprom)
+static void mt76x0_set_freq_offset(struct mt76x0_dev *dev)
 {
-	u8 comp;
+	struct mt76x0_caldata *caldata = &dev->caldata;
+	u8 val;
 
-	comp = eeprom[MT_EE_FREQ_OFFSET_COMPENSATION];
-	if (!mt76x02_field_valid(comp))
-		comp = 0;
+	val = mt76x02_eeprom_get(&dev->mt76, MT_EE_FREQ_OFFSET);
+	if (!mt76x02_field_valid(val))
+		val = 0;
+	caldata->freq_offset = val;
 
-	dev->ee->rf_freq_off = eeprom[MT_EE_FREQ_OFFSET];
-	if (!mt76x02_field_valid(dev->ee->rf_freq_off))
-		dev->ee->rf_freq_off = 0;
+	val = mt76x02_eeprom_get(&dev->mt76, MT_EE_TSSI_BOUND4) >> 8;
+	if (!mt76x02_field_valid(val))
+		val = 0;
 
-	if (comp & BIT(7))
-		dev->ee->rf_freq_off -= comp & 0x7f;
-	else
-		dev->ee->rf_freq_off += comp;
+	caldata->freq_offset -= mt76x02_sign_extend(val, 8);
 }
 
 void mt76x0_read_rx_gain(struct mt76x0_dev *dev)
@@ -286,7 +284,7 @@ mt76x0_eeprom_init(struct mt76x0_dev *dev)
 
 	mt76x02_mac_setaddr(&dev->mt76, eeprom + MT_EE_MAC_ADDR);
 	mt76x0_set_chip_cap(dev, eeprom);
-	mt76x0_set_rf_freq_off(dev, eeprom);
+	mt76x0_set_freq_offset(dev);
 	mt76x0_set_temp_offset(dev);
 	dev->chainmask = 0x0101;
 

drivers/net/wireless/mediatek/mt76/mt76x0/eeprom.h

@@ -33,11 +33,10 @@ struct mt76x0_caldata {
 	s8 lna_gain;
 
 	s16 temp_offset;
+	u8 freq_offset;
 };
 
 struct mt76x0_eeprom_params {
-	u8 rf_freq_off;
-
 	/* TX_PWR_CFG_* values from EEPROM for 20 and 40 Mhz bandwidths. */
 	u32 tx_pwr_cfg_2g[5][2];
 	u32 tx_pwr_cfg_5g[5][2];

drivers/net/wireless/mediatek/mt76/mt76x0/phy.c

@@ -942,7 +942,8 @@ mt76x0_rf_init(struct mt76x0_dev *dev)
 	   E1: B0.R22<6:0>: xo_cxo<6:0>
 	   E2: B0.R21<0>: xo_cxo<0>, B0.R22<7:0>: xo_cxo<8:1>
 	 */
-	rf_wr(dev, MT_RF(0, 22), min_t(u8, dev->ee->rf_freq_off, 0xBF));
+	rf_wr(dev, MT_RF(0, 22),
+	      min_t(u8, dev->caldata.freq_offset, 0xbf));
 	val = rf_rr(dev, MT_RF(0, 22));
 
 	/*

drivers/net/wireless/mediatek/mt76/mt76x02_eeprom.h

@@ -74,7 +74,12 @@ enum mt76x02_eeprom_field {
 
 	MT_EE_2G_TARGET_POWER =			0x0d0,
 	MT_EE_TEMP_OFFSET =			0x0d1,
+	MT_EE_TSSI_BOUND1 =			0x0d4,
+	MT_EE_TSSI_BOUND2 =			0x0d6,
+	MT_EE_TSSI_BOUND3 =			0x0d8,
+	MT_EE_TSSI_BOUND4 =			0x0da,
 	MT_EE_FREQ_OFFSET_COMPENSATION =	0x0db,
+	MT_EE_TSSI_BOUND5 =			0x0dc,
 	MT_EE_TX_POWER_BYRATE_BASE =		0x0de,
 
 	MT_EE_RF_TEMP_COMP_SLOPE_5G =		0x0f2,