diff options
| author | Miaoqing Pan <miaoqing@codeaurora.org> | 2019-05-30 04:49:20 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2019-06-25 16:03:05 +0300 |
| commit | 011d4111c8c602ea829fa4917af1818eb0500a90 (patch) | |
| tree | a2dab667826855a79ac298f3be4492f69449de21 | |
| parent | 8b97b055dc9db09b48d5a9a37d847900dd00d3cc (diff) | |
| download | linux-011d4111c8c602ea829fa4917af1818eb0500a90.tar.xz | |
ath10k: fix PCIE device wake up failed
Observed PCIE device wake up failed after ~120 iterations of
soft-reboot test. The error message is
"ath10k_pci 0000:01:00.0: failed to wake up device : -110"
The call trace as below:
ath10k_pci_probe -> ath10k_pci_force_wake -> ath10k_pci_wake_wait ->
ath10k_pci_is_awake
Once trigger the device to wake up, we will continuously check the RTC
state until it returns RTC_STATE_V_ON or timeout.
But for QCA99x0 chips, we use wrong value for RTC_STATE_V_ON.
Occasionally, we get 0x7 on the fist read, we thought as a failure
case, but actually is the right value, also verified with the spec.
So fix the issue by changing RTC_STATE_V_ON from 0x5 to 0x7, passed
~2000 iterations.
Tested HW: QCA9984
Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/hw.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath10k/hw.c b/drivers/net/wireless/ath/ath10k/hw.c index ad082b7d7643..b242085c3c16 100644 --- a/drivers/net/wireless/ath/ath10k/hw.c +++ b/drivers/net/wireless/ath/ath10k/hw.c @@ -158,7 +158,7 @@ const struct ath10k_hw_values qca6174_values = { }; const struct ath10k_hw_values qca99x0_values = { - .rtc_state_val_on = 5, + .rtc_state_val_on = 7, .ce_count = 12, .msi_assign_ce_max = 12, .num_target_ce_config_wlan = 10, |