diff options
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/pci.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c index f06dd3941bac..20128fec61f6 100644 --- a/drivers/net/wireless/ath/ath10k/pci.c +++ b/drivers/net/wireless/ath/ath10k/pci.c @@ -2216,6 +2216,14 @@ static void ath10k_pci_fw_crashed_clear(struct ath10k *ar) ath10k_pci_write32(ar, FW_INDICATOR_ADDRESS, val); } +static bool ath10k_pci_has_device_gone(struct ath10k *ar) +{ + u32 val; + + val = ath10k_pci_read32(ar, FW_INDICATOR_ADDRESS); + return (val == 0xffffffff); +} + /* this function effectively clears target memory controller assert line */ static void ath10k_pci_warm_reset_si0(struct ath10k *ar) { @@ -2748,6 +2756,9 @@ static irqreturn_t ath10k_pci_interrupt_handler(int irq, void *arg) struct ath10k_pci *ar_pci = ath10k_pci_priv(ar); int ret; + if (ath10k_pci_has_device_gone(ar)) + return IRQ_NONE; + ret = ath10k_pci_force_wake(ar); if (ret) { ath10k_warn(ar, "failed to wake device up on irq: %d\n", ret); |