From: Stanislaw Gruszka <sgruszka@redhat.com>
To: stable@vger.kernel.org
Cc: Felix Fietkau <nbd@nbd.name>,
linux-wireless@vger.kernel.org,
Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Subject: [PATCH 4.20.x 6/7] mt76x0: antenna select corrections
Date: Tue, 22 Jan 2019 13:38:36 +0100 [thread overview]
Message-ID: <1548160717-4059-7-git-send-email-sgruszka@redhat.com> (raw)
In-Reply-To: <1548160717-4059-1-git-send-email-sgruszka@redhat.com>
commit ef442b73b6bc36b5499e1983611abb46e6337975 upstream.
Update mt76x0_phy_ant_select() to conform vendor driver, most notably
add dual antenna mode support, read configuration from EEPROM and
move ant select out of channel config to init phase. Plus small MT7630E
quirk for MT_CMB_CTRL register which vendor driver dedicated to this
chip do.
This make MT7630E workable with mt76x0e driver and do not cause any
problems on MT7610U for me.
Acked-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
---
drivers/net/wireless/mediatek/mt76/mt76x0/phy.c | 52 ++++++++++++++++------
.../net/wireless/mediatek/mt76/mt76x02_eeprom.h | 10 ++---
2 files changed, 44 insertions(+), 18 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c b/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c
index d598ddc632cc..8d654aa63e93 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c
@@ -518,21 +518,47 @@ static void mt76x0_vco_cal(struct mt76x02_dev *dev, u8 channel)
static void mt76x0_ant_select(struct mt76x02_dev *dev)
{
- struct ieee80211_channel *chan = dev->mt76.chandef.chan;
-
- /* single antenna mode */
- if (chan->band == NL80211_BAND_2GHZ) {
- mt76_rmw(dev, MT_COEXCFG3,
- BIT(5) | BIT(4) | BIT(3) | BIT(2), BIT(1));
- mt76_rmw(dev, MT_WLAN_FUN_CTRL, BIT(5), BIT(6));
+ u16 ee_ant = mt76x02_eeprom_get(dev, MT_EE_ANTENNA);
+ u16 nic_conf2 = mt76x02_eeprom_get(dev, MT_EE_NIC_CONF_2);
+ u32 wlan, coex3, cmb;
+ bool ant_div;
+
+ wlan = mt76_rr(dev, MT_WLAN_FUN_CTRL);
+ cmb = mt76_rr(dev, MT_CMB_CTRL);
+ coex3 = mt76_rr(dev, MT_COEXCFG3);
+
+ cmb &= ~(BIT(14) | BIT(12));
+ wlan &= ~(BIT(6) | BIT(5));
+ coex3 &= ~GENMASK(5, 2);
+
+ if (ee_ant & MT_EE_ANTENNA_DUAL) {
+ /* dual antenna mode */
+ ant_div = !(nic_conf2 & MT_EE_NIC_CONF_2_ANT_OPT) &&
+ (nic_conf2 & MT_EE_NIC_CONF_2_ANT_DIV);
+ if (ant_div)
+ cmb |= BIT(12);
+ else
+ coex3 |= BIT(4);
+ coex3 |= BIT(3);
+ if (dev->mt76.cap.has_2ghz)
+ wlan |= BIT(6);
} else {
- mt76_rmw(dev, MT_COEXCFG3, BIT(5) | BIT(2),
- BIT(4) | BIT(3));
- mt76_clear(dev, MT_WLAN_FUN_CTRL,
- BIT(6) | BIT(5));
+ /* sigle antenna mode */
+ if (dev->mt76.cap.has_5ghz) {
+ coex3 |= BIT(3) | BIT(4);
+ } else {
+ wlan |= BIT(6);
+ coex3 |= BIT(1);
+ }
}
- mt76_clear(dev, MT_CMB_CTRL, BIT(14) | BIT(12));
+
+ if (is_mt7630(dev))
+ cmb |= BIT(14) | BIT(11);
+
+ mt76_wr(dev, MT_WLAN_FUN_CTRL, wlan);
+ mt76_wr(dev, MT_CMB_CTRL, cmb);
mt76_clear(dev, MT_COEXCFG0, BIT(2));
+ mt76_wr(dev, MT_COEXCFG3, coex3);
}
static void
@@ -700,7 +726,6 @@ int mt76x0_phy_set_channel(struct mt76x02_dev *dev,
mt76x02_phy_set_bw(dev, chandef->width, ch_group_index);
mt76x02_phy_set_band(dev, chandef->chan->band,
ch_group_index & 1);
- mt76x0_ant_select(dev);
mt76_rmw(dev, MT_EXT_CCA_CFG,
(MT_EXT_CCA_CFG_CCA0 |
@@ -927,6 +952,7 @@ void mt76x0_phy_init(struct mt76x02_dev *dev)
{
INIT_DELAYED_WORK(&dev->cal_work, mt76x0_phy_calibration_work);
+ mt76x0_ant_select(dev);
mt76x0_rf_init(dev);
mt76x02_phy_set_rxpath(dev);
mt76x02_phy_set_txdac(dev);
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_eeprom.h b/drivers/net/wireless/mediatek/mt76/mt76x02_eeprom.h
index b3ec74835d10..1de041590050 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x02_eeprom.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76x02_eeprom.h
@@ -25,6 +25,7 @@ enum mt76x02_eeprom_field {
MT_EE_VERSION = 0x002,
MT_EE_MAC_ADDR = 0x004,
MT_EE_PCI_ID = 0x00A,
+ MT_EE_ANTENNA = 0x022,
MT_EE_NIC_CONF_0 = 0x034,
MT_EE_NIC_CONF_1 = 0x036,
MT_EE_COUNTRY_REGION_5GHZ = 0x038,
@@ -104,6 +105,8 @@ enum mt76x02_eeprom_field {
__MT_EE_MAX
};
+#define MT_EE_ANTENNA_DUAL BIT(15)
+
#define MT_EE_NIC_CONF_0_RX_PATH GENMASK(3, 0)
#define MT_EE_NIC_CONF_0_TX_PATH GENMASK(7, 4)
#define MT_EE_NIC_CONF_0_PA_TYPE GENMASK(9, 8)
@@ -118,12 +121,9 @@ enum mt76x02_eeprom_field {
#define MT_EE_NIC_CONF_1_LNA_EXT_5G BIT(3)
#define MT_EE_NIC_CONF_1_TX_ALC_EN BIT(13)
-#define MT_EE_NIC_CONF_2_RX_STREAM GENMASK(3, 0)
-#define MT_EE_NIC_CONF_2_TX_STREAM GENMASK(7, 4)
-#define MT_EE_NIC_CONF_2_HW_ANTDIV BIT(8)
+#define MT_EE_NIC_CONF_2_ANT_OPT BIT(3)
+#define MT_EE_NIC_CONF_2_ANT_DIV BIT(4)
#define MT_EE_NIC_CONF_2_XTAL_OPTION GENMASK(10, 9)
-#define MT_EE_NIC_CONF_2_TEMP_DISABLE BIT(11)
-#define MT_EE_NIC_CONF_2_COEX_METHOD GENMASK(15, 13)
#define MT_EFUSE_USAGE_MAP_SIZE (MT_EE_USAGE_MAP_END - \
MT_EE_USAGE_MAP_START + 1)
--
1.9.3
next prev parent reply other threads:[~2019-01-22 12:38 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-22 12:38 [PATCH 4.20.x 0/7] mt76x0 fixes for 4.20 stable Stanislaw Gruszka
2019-01-22 12:38 ` [PATCH 4.20.x 1/7] mt76x0: do not overwrite other MT_BBP(AGC, 8) fields Stanislaw Gruszka
2019-01-22 12:38 ` [PATCH 4.20.x 2/7] mt76x0: use band parameter for LC calibration Stanislaw Gruszka
2019-01-22 12:38 ` [PATCH 4.20.x 3/7] mt76x02: run calibration after scanning Stanislaw Gruszka
2019-01-22 12:38 ` [PATCH 4.20.x 4/7] mt76x02: assure we update gain after scan Stanislaw Gruszka
2019-01-22 12:38 ` [PATCH 4.20.x 5/7] mt76x0: do not perform MCU calibration for MT7630 Stanislaw Gruszka
2019-01-22 12:38 ` Stanislaw Gruszka [this message]
2019-01-22 12:38 ` [PATCH 4.20.x 7/7] mt76x0: phy: unify calibration between mt76x0u and mt76x0e Stanislaw Gruszka
2019-01-28 16:06 ` [PATCH 4.20.x 0/7] mt76x0 fixes for 4.20 stable Sid Hayn
2019-01-29 8:04 ` Kalle Valo
2019-01-29 9:43 ` Greg KH
2019-01-29 15:55 ` Sid Hayn
2019-01-29 16:09 ` Greg KH
2019-01-29 10:29 ` Greg KH
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