diff options
| author | Sean Wang <sean.wang@mediatek.com> | 2026-02-19 03:39:59 +0300 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2026-03-24 18:49:29 +0300 |
| commit | 222606f43b587c9fb4ae063d04db146100c8951c (patch) | |
| tree | 28c119d2b778b63d15388b96d6ee1b2aaa12faeb /drivers | |
| parent | 918af1f87f7de988a7e84a7a85390a7d626ee189 (diff) | |
| download | linux-222606f43b587c9fb4ae063d04db146100c8951c.tar.xz | |
wifi: mt76: mt7921: handle MT7902 irq_map quirk with mutable copy
MT7902 PCIe requires a different wm2_complete_mask value, so introduce a
mutable per-device copy of the default irq_map and override the field
only for this chip. Other devices continue using the shared const
template.
This is a prerequisite patch before enabling MT7902 PCIe support.
Co-developed-by: Xiong Huang <xiong.huang@mediatek.com>
Signed-off-by: Xiong Huang <xiong.huang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Link: https://patch.msgid.link/20260219004007.19733-3-sean.wang@kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7921/pci.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c index 65c7fe671137..5f857a21f362 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c @@ -327,6 +327,20 @@ static int mt7921_pci_probe(struct pci_dev *pdev, dev->hif_ops = &mt7921_pcie_ops; dev->irq_map = &irq_map; mt76_mmio_init(&dev->mt76, regs); + + if (id->device == 0x7902) { + struct mt792x_irq_map *map; + + /* MT7902 needs a mutable copy because wm2_complete_mask differs */ + map = devm_kmemdup(&pdev->dev, &irq_map, + sizeof(irq_map), GFP_KERNEL); + if (!map) + return -ENOMEM; + + map->rx.wm2_complete_mask = 0; + dev->irq_map = map; + } + tasklet_init(&mdev->irq_tasklet, mt792x_irq_tasklet, (unsigned long)dev); dev->phy.dev = dev; |