diff options
| author | Carl Huang <cjhuang@codeaurora.org> | 2020-12-11 19:35:43 +0200 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2020-12-12 06:41:22 +0200 |
| commit | f6fa37a4928ffc4722e4570462bf461634e0d60c (patch) | |
| tree | 911d8669234576d0e2181436d624107fb40678ec /drivers/net | |
| parent | fa5917e44ee888732bba5294a9a22c1d54cce393 (diff) | |
| download | linux-f6fa37a4928ffc4722e4570462bf461634e0d60c.tar.bz2 | |
ath11k: pci: read select_window register to ensure write is finished
Just when resume from WoW, the write to select_window doesn't take
effect immediately, so read the register again to ensure the write
operation is finished.
Another change is to reset select_window to ZERO because this
register isn't restored after WoW, so the content of this register
becomes ZERO too.
Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1607708150-21066-4-git-send-email-kvalo@codeaurora.org
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/pci.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath11k/pci.c b/drivers/net/wireless/ath/ath11k/pci.c index 770cefd53290..ee1c2edefa20 100644 --- a/drivers/net/wireless/ath/ath11k/pci.c +++ b/drivers/net/wireless/ath/ath11k/pci.c @@ -126,6 +126,7 @@ static inline void ath11k_pci_select_window(struct ath11k_pci *ab_pci, u32 offse if (window != ab_pci->register_window) { iowrite32(WINDOW_ENABLE_BIT | window, ab->mem + WINDOW_REG_ADDRESS); + ioread32(ab->mem + WINDOW_REG_ADDRESS); ab_pci->register_window = window; } } |