wifi: mt76: mt7925: add per-chip PCIe register definitions

Add MT7925_PCIE_MAC_{INT_ENABLE,PM} macros and mt7925_pcie_reg
struct. Update all PCIe register accesses in pci.c, pci_mac.c, and
pci_mcu.c to use dev->pcie_reg->{imask,pm}.

This is a preparation patch before enabling MT7928 PCIe support.

Signed-off-by: Xiong <xiong.huang@mediatek.com>
Signed-off-by: Emery Hsin <emery.hsin@mediatek.com>
Link: https://patch.msgid.link/20260612075136.2577553-2-jb.tsai@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>

4 files changed, 18 insertions, 8 deletions

diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/pci.c b/drivers/net/wireless/mediatek/mt76/mt7925/pci.c
index 8a4fb53c718f..61349c260b12 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7925/pci.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7925/pci.c
@@ -298,6 +298,11 @@ static int mt7925_dma_init(struct mt792x_dev *dev)
 	return mt792x_dma_enable(dev);
 }
 
+static const struct mt792x_pcie_reg mt7925_pcie_reg = {
+	.imask = MT7925_PCIE_MAC_INT_ENABLE,
+	.pm = MT7925_PCIE_MAC_PM,
+};
+
 static const struct mt792x_irq_map mt7925_irq_map = {
 	.host_irq_enable = MT_WFDMA0_HOST_INT_ENA,
 	.tx = {
@@ -413,6 +418,8 @@ static int mt7925_pci_probe(struct pci_dev *pdev,
 	dev->fw_features = features;
 	dev->hif_ops = &mt7925_pcie_ops;
 	dev->irq_map = is_mt7927_hw ? &mt7927_irq_map : &mt7925_irq_map;
+	dev->pcie_reg = &mt7925_pcie_reg;
+
 	mt76_mmio_init(&dev->mt76, pcim_iomap_table(pdev)[0]);
 	tasklet_init(&mdev->irq_tasklet, mt792x_irq_tasklet, (unsigned long)dev);
 
@@ -462,8 +469,7 @@ static int mt7925_pci_probe(struct pci_dev *pdev,
 		goto err_free_dev;
 
 	mt76_wr(dev, dev->irq_map->host_irq_enable, 0);
-
-	mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff);
+	mt76_wr(dev, dev->pcie_reg->imask, 0xff);
 
 	ret = devm_request_irq(mdev->dev, pdev->irq, mt792x_irq_handler,
 			       IRQF_SHARED, KBUILD_MODNAME, dev);
@@ -564,8 +570,7 @@ static int mt7925_pci_suspend(struct device *device)
 
 	/* disable interrupt */
 	mt76_wr(dev, dev->irq_map->host_irq_enable, 0);
-
-	mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0x0);
+	mt76_wr(dev, dev->pcie_reg->imask, 0x0);
 
 	synchronize_irq(pdev->irq);
 	tasklet_kill(&mdev->irq_tasklet);
@@ -615,7 +620,7 @@ static int _mt7925_pci_resume(struct device *device, bool restore)
 	mt792x_wpdma_reinit_cond(dev);
 
 	/* enable interrupt */
-	mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff);
+	mt76_wr(dev, dev->pcie_reg->imask, 0xff);
 	mt76_connac_irq_enable(&dev->mt76,
 			       dev->irq_map->tx.all_complete_mask |
 			       dev->irq_map->rx.all_complete_mask |
diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/pci_mac.c b/drivers/net/wireless/mediatek/mt76/mt7925/pci_mac.c
index d288739e1307..8477d21abc66 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7925/pci_mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7925/pci_mac.c
@@ -78,7 +78,7 @@ int mt7925e_mac_reset(struct mt792x_dev *dev)
 	mt76_connac_free_pending_tx_skbs(&dev->pm, NULL);
 
 	mt76_wr(dev, dev->irq_map->host_irq_enable, 0);
-	mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0x0);
+	mt76_wr(dev, dev->pcie_reg->imask, 0x0);
 
 	set_bit(MT76_RESET, &dev->mphy.state);
 	set_bit(MT76_MCU_RESET, &dev->mphy.state);
@@ -121,7 +121,7 @@ int mt7925e_mac_reset(struct mt792x_dev *dev)
 		dev->irq_map->tx.all_complete_mask |
 		dev->irq_map->rx.all_complete_mask |
 		MT_INT_MCU_CMD);
-	mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff);
+	mt76_wr(dev, dev->pcie_reg->imask, 0xff);
 
 	err = mt792xe_mcu_fw_pmctrl(dev);
 	if (err)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/pci_mcu.c b/drivers/net/wireless/mediatek/mt76/mt7925/pci_mcu.c
index 6cceff88c656..72707eddc3db 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7925/pci_mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7925/pci_mcu.c
@@ -43,7 +43,7 @@ int mt7925e_mcu_init(struct mt792x_dev *dev)
 	if (err)
 		return err;
 
-	mt76_rmw_field(dev, MT_PCIE_MAC_PM, MT_PCIE_MAC_PM_L0S_DIS, 1);
+	mt76_rmw_field(dev, dev->pcie_reg->pm, MT_PCIE_MAC_PM_L0S_DIS, 1);
 
 	err = mt7925_run_firmware(dev);
 
diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/regs.h b/drivers/net/wireless/mediatek/mt76/mt7925/regs.h
index bb5969689337..85adde2ad597 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7925/regs.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7925/regs.h
@@ -97,4 +97,9 @@
 #define MT_WTBL_UPDATE_WLAN_IDX		GENMASK(11, 0)
 #define MT_WTBL_UPDATE_ADM_COUNT_CLEAR	BIT(14)
 
+#define MT7925_PCIE_MAC_BASE		0x10000
+#define MT7925_PCIE_MAC(ofs)		(MT7925_PCIE_MAC_BASE + (ofs))
+#define MT7925_PCIE_MAC_INT_ENABLE	MT7925_PCIE_MAC(0x188)
+#define MT7925_PCIE_MAC_PM		MT7925_PCIE_MAC(0x194)
+
 #endif