recipes-wifi/linux-mt76/files/patches-3.x/0006-wifi-mt76-mt7996-make-band-capability-init-flexible.patch

From 3121e46d58e1fe871e2940c9b2e38e448a07585e Mon Sep 17 00:00:00 2001
From: Shayne Chen <shayne.chen@mediatek.com>
Date: Tue, 23 May 2023 15:49:03 +0800
Subject: [PATCH 06/22] wifi: mt76: mt7996: make band capability init flexible

There're some variations of mt7996 chipset which only support two-band,
so parse the adie combination to correctly set band capability.

Change-Id: Ifcb49504f02f5cc6a23c626e30b4f0e1360fe157
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
---
 mt7996/dma.c    |  8 ++++----
 mt7996/init.c   | 29 ++++++++++++++++++-----------
 mt7996/mcu.c    | 13 +++++--------
 mt7996/mt7996.h | 11 +++++++++++
 mt7996/regs.h   |  3 +++
 5 files changed, 41 insertions(+), 23 deletions(-)

diff --git a/mt7996/dma.c b/mt7996/dma.c
index 586e247a1..f5118d054 100644
--- a/mt7996/dma.c
+++ b/mt7996/dma.c
@@ -159,13 +159,13 @@ void mt7996_dma_start(struct mt7996_dev *dev, bool reset)
 
 	irq_mask = MT_INT_RX_DONE_MCU | MT_INT_TX_DONE_MCU;
 
-	if (!dev->mphy.band_idx)
+	if (mt7996_band_valid(dev, MT_BAND0))
 		irq_mask |= MT_INT_BAND0_RX_DONE;
 
-	if (dev->dbdc_support)
+	if (mt7996_band_valid(dev, MT_BAND1))
 		irq_mask |= MT_INT_BAND1_RX_DONE;
 
-	if (dev->tbtc_support)
+	if (mt7996_band_valid(dev, MT_BAND2))
 		irq_mask |= MT_INT_BAND2_RX_DONE;
 
 done:
@@ -332,7 +332,7 @@ int mt7996_dma_init(struct mt7996_dev *dev)
 	if (ret)
 		return ret;
 
-	if (dev->tbtc_support || dev->mphy.band_idx == MT_BAND2) {
+	if (mt7996_band_valid(dev, MT_BAND2)) {
 		/* rx data queue for band2 */
 		ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_BAND2],
 				       MT_RXQ_ID(MT_RXQ_BAND2),
diff --git a/mt7996/init.c b/mt7996/init.c
index 5f10d87bb..c86c70c22 100644
--- a/mt7996/init.c
+++ b/mt7996/init.c
@@ -530,11 +530,7 @@ static int mt7996_register_phy(struct mt7996_dev *dev, struct mt7996_phy *phy,
 	u32 mac_ofs, hif1_ofs = 0;
 	int ret;
 
-	if (band != MT_BAND1 && band != MT_BAND2)
-		return 0;
-
-	if ((band == MT_BAND1 && !dev->dbdc_support) ||
-	    (band == MT_BAND2 && !dev->tbtc_support))
+	if (!mt7996_band_valid(dev, band) || band == MT_BAND0)
 		return 0;
 
 	if (phy)
@@ -649,8 +645,10 @@ static int mt7996_init_hardware(struct mt7996_dev *dev)
 
 	INIT_WORK(&dev->init_work, mt7996_init_work);
 
-	dev->dbdc_support = true;
-	dev->tbtc_support = true;
+	dev->dbdc_support = mt7996_band_valid(dev, MT_BAND1) ||
+			    mt7996_band_valid(dev, MT_BAND2);
+	dev->tbtc_support = mt7996_band_valid(dev, MT_BAND1) &&
+			    mt7996_band_valid(dev, MT_BAND2);
 
 	ret = mt7996_dma_init(dev);
 	if (ret)
@@ -1080,8 +1078,6 @@ int mt7996_register_device(struct mt7996_dev *dev)
 	if (ret)
 		return ret;
 
-	ieee80211_queue_work(mt76_hw(dev), &dev->init_work);
-
 	ret = mt7996_register_phy(dev, mt7996_phy2(dev), MT_BAND1);
 	if (ret)
 		return ret;
@@ -1090,13 +1086,24 @@ int mt7996_register_device(struct mt7996_dev *dev)
 	if (ret)
 		return ret;
 
+	ieee80211_queue_work(mt76_hw(dev), &dev->init_work);
+
 	dev->recovery.hw_init_done = true;
 
 	ret = mt7996_init_debugfs(&dev->phy);
 	if (ret)
-		return ret;
+		goto error;
 
-	return mt7996_coredump_register(dev);
+	ret = mt7996_coredump_register(dev);
+	if (ret)
+		goto error;
+
+	return 0;
+
+error:
+	cancel_work_sync(&dev->init_work);
+
+	return ret;
 }
 
 void mt7996_unregister_device(struct mt7996_dev *dev)
diff --git a/mt7996/mcu.c b/mt7996/mcu.c
index c3666c925..49bd398a2 100644
--- a/mt7996/mcu.c
+++ b/mt7996/mcu.c
@@ -2768,7 +2768,7 @@ mt7996_mcu_init_rx_airtime(struct mt7996_dev *dev)
 {
 	struct uni_header hdr = {};
 	struct sk_buff *skb;
-	int len, num;
+	int len, num, i;
 
 	num = 2 + 2 * (dev->dbdc_support + dev->tbtc_support);
 	len = sizeof(hdr) + num * sizeof(struct vow_rx_airtime);
@@ -2778,13 +2778,10 @@ mt7996_mcu_init_rx_airtime(struct mt7996_dev *dev)
 
 	skb_put_data(skb, &hdr, sizeof(hdr));
 
-	mt7996_add_rx_airtime_tlv(skb, dev->mt76.phy.band_idx);
-
-	if (dev->dbdc_support)
-		mt7996_add_rx_airtime_tlv(skb, MT_BAND1);
-
-	if (dev->tbtc_support)
-		mt7996_add_rx_airtime_tlv(skb, MT_BAND2);
+	for (i = 0; i < __MT_MAX_BAND; i++) {
+		if (mt7996_band_valid(dev, i))
+			mt7996_add_rx_airtime_tlv(skb, i);
+	}
 
 	return mt76_mcu_skb_send_msg(&dev->mt76, skb,
 				     MCU_WM_UNI_CMD(VOW), true);
diff --git a/mt7996/mt7996.h b/mt7996/mt7996.h
index 810a472ea..230d9ee79 100644
--- a/mt7996/mt7996.h
+++ b/mt7996/mt7996.h
@@ -329,6 +329,17 @@ mt7996_phy3(struct mt7996_dev *dev)
 	return __mt7996_phy(dev, MT_BAND2);
 }
 
+static inline bool
+mt7996_band_valid(struct mt7996_dev *dev, u8 band)
+{
+	/* tri-band support */
+	if (band <= MT_BAND2 &&
+	    mt76_get_field(dev, MT_PAD_GPIO, MT_PAD_GPIO_ADIE_COMB) <= 1)
+		return true;
+
+	return band == MT_BAND0 || band == MT_BAND2;
+}
+
 extern const struct ieee80211_ops mt7996_ops;
 extern struct pci_driver mt7996_pci_driver;
 extern struct pci_driver mt7996_hif_driver;
diff --git a/mt7996/regs.h b/mt7996/regs.h
index 570229062..3d32f1e9a 100644
--- a/mt7996/regs.h
+++ b/mt7996/regs.h
@@ -545,6 +545,9 @@ enum base_rev {
 #define MT_TOP_MISC				MT_TOP(0xf0)
 #define MT_TOP_MISC_FW_STATE			GENMASK(2, 0)
 
+#define MT_PAD_GPIO				0x700056f0
+#define MT_PAD_GPIO_ADIE_COMB			GENMASK(16, 15)
+
 #define MT_HW_REV				0x70010204
 #define MT_WF_SUBSYS_RST			0x70028600
 
-- 
2.39.2