Introduce mcu_reset function pointer in mt76_mcu_ops structure in order
to run hw related reset function for the mcu running on the chipset.
This is a preliminary patch to introduce chip reset for mt7921 devices.
Co-developed-by: Sean Wang <sean.wang@xxxxxxxxxxxx>
Signed-off-by: Sean Wang <sean.wang@xxxxxxxxxxxx>
Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
---
drivers/net/wireless/mediatek/mt76/mcu.c | 4 ++++
drivers/net/wireless/mediatek/mt76/mt76.h | 1 +
2 files changed, 5 insertions(+)
diff --git a/drivers/net/wireless/mediatek/mt76/mcu.c b/drivers/net/wireless/mediatek/mt76/mcu.c
index d3a5e2c4f12a..70624cd07449 100644
--- a/drivers/net/wireless/mediatek/mt76/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mcu.c
@@ -99,6 +99,10 @@ int mt76_mcu_skb_send_and_get_msg(struct mt76_dev *dev, struct sk_buff *skb,
dev_kfree_skb(skb);
} while (ret == -EAGAIN);
+ /* notify driver code to reset the mcu */
+ if (ret == -ETIMEDOUT && dev->mcu_ops->mcu_reset)
+ dev->mcu_ops->mcu_reset(dev);
+
out:
mutex_unlock(&dev->mcu.mutex);
diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
index 5d3438d86d2a..bbe6a70851c8 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76.h
@@ -166,6 +166,7 @@ struct mt76_mcu_ops {
int (*mcu_rd_rp)(struct mt76_dev *dev, u32 base,
struct mt76_reg_pair *rp, int len);
int (*mcu_restart)(struct mt76_dev *dev);
+ void (*mcu_reset)(struct mt76_dev *dev);
};
struct mt76_queue_ops {
--
2.29.2
