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| author |   Manikanta Pubbisetty <quic_mpubbise@quicinc.com> | 2022-08-31 09:04:19 +0300 |
|---|---|---|
| committer |   Kalle Valo <quic_kvalo@quicinc.com> | 2022-09-01 19:09:33 +0300 |
| commit | ac41c2b642b136a1e633379fcb87a9db0ee07f5b (patch) | |
| tree | 18be9d9ece58b029b4f368cc8a0c50901e38c654 /drivers/net/wireless/ath/ath11k/core.c | |
| parent | Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git (diff) | |
| download | wireguard-linux-ac41c2b642b136a1e633379fcb87a9db0ee07f5b.tar.xz wireguard-linux-ac41c2b642b136a1e633379fcb87a9db0ee07f5b.zip | |
wifi: ath11k: Register shutdown handler for WCN6750
When the system shuts down, SMMU driver will be stopped and
will not assist in IOVA translations. SMMU driver expects all
of its consumers to shutdown before shutting down itself.
WCN6750 being one of the consumer device should not perform any
DMA operations after the SMMU has shutdown which will otherwise
result in SMMU faults.
SMMU driver will call the shutdown() callback of all its
consumer devices and the consumers shall stop further DMA
activity after the invocation of their respective shutdown()
callbacks.
Register the shutdown() callback to the platform core for WCN6750.
Change will not impact other AHB ath11k devices.
Tested-on: WCN6750 hw1.0 AHB WLAN.MSL.1.0.1-00887-QCAMSLSWPLZ-1
Signed-off-by: Manikanta Pubbisetty <quic_mpubbise@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220720134710.15523-1-quic_mpubbise@quicinc.com
Diffstat (limited to 'drivers/net/wireless/ath/ath11k/core.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/core.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath11k/core.c b/drivers/net/wireless/ath/ath11k/core.c index c3e9e4f7bc24..9df6aaae8a44 100644 --- a/drivers/net/wireless/ath/ath11k/core.c +++ b/drivers/net/wireless/ath/ath11k/core.c @@ -1563,6 +1563,8 @@ static void ath11k_core_pre_reconfigure_recovery(struct ath11k_base *ab) wake_up(&ab->wmi_ab.tx_credits_wq); wake_up(&ab->peer_mapping_wq); + + reinit_completion(&ab->driver_recovery); } static void ath11k_core_post_reconfigure_recovery(struct ath11k_base *ab) |