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wifi: mt76: mt7921s: Introduce SDIO WiFi/BT combo module card reset

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Add a hardware reset method to recover from the SDIO bus error that cannot
be resolved by the current WiFi/BT subsystem reset.

Signed-off-by: Leon Yen <[email protected]>
Signed-off-by: Ming Yen Hsieh <[email protected]>
Link: https://patch.msgid.link/[email protected]
This commit is contained in:
Leon Yen
2025-07-07 18:10:01 +02:00
committed by Felix Fietkau
parent b9f4e0df31
commit ec95319fd3
6 changed files with 72 additions and 2 deletions
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mcu.c
+4
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@@ -78,6 +78,10 @@ int mt76_mcu_skb_send_and_get_msg(struct mt76_dev *dev, struct sk_buff *skb,
unsigned long expires;
int ret, seq;
if (mt76_is_sdio(dev))
if (test_bit(MT76_RESET, &dev->phy.state) && atomic_read(&dev->bus_hung))
return -EIO;
if (ret_skb)
*ret_skb = NULL;