From: Kalle Valo <kvalo@codeaurora.org>
To: ath11k@lists.infradead.org
Cc: linux-wireless@vger.kernel.org
Subject: [PATCH 03/10] ath11k: pci: read select_window register to ensure write is finished
Date: Fri, 11 Dec 2020 19:35:43 +0200 [thread overview]
Message-ID: <1607708150-21066-4-git-send-email-kvalo@codeaurora.org> (raw)
In-Reply-To: <1607708150-21066-1-git-send-email-kvalo@codeaurora.org>
From: Carl Huang <cjhuang@codeaurora.org>
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>
---
drivers/net/wireless/ath/ath11k/pci.c | 1 +
1 file changed, 1 insertion(+)
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;
}
}
--
2.7.4
next prev parent reply other threads:[~2020-12-11 19:22 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-11 17:35 [PATCH 00/10] ath11k: suspend support for QCA6390 PCI Kalle Valo
2020-12-11 17:35 ` [PATCH 01/10] ath11k: mhi: hook suspend and resume Kalle Valo
2020-12-12 4:42 ` Kalle Valo
2020-12-11 17:35 ` [PATCH 02/10] ath11k: hif: implement suspend and resume functions Kalle Valo
2020-12-11 17:35 ` Kalle Valo [this message]
2020-12-11 17:35 ` [PATCH 04/10] ath11k: htc: remove unused struct ath11k_htc_ops Kalle Valo
2020-12-11 17:35 ` [PATCH 05/10] ath11k: htc: implement suspend handling Kalle Valo
2020-12-11 17:35 ` [PATCH 06/10] ath11k: dp: stop rx pktlog before suspend Kalle Valo
2020-12-11 17:35 ` [PATCH 07/10] ath11k: set credit_update flag for flow controlled ep only Kalle Valo
2020-12-11 17:35 ` [PATCH 08/10] ath11k: implement WoW enable and wakeup commands Kalle Valo
2020-12-11 17:35 ` [PATCH 09/10] ath11k: hif: add ce irq enable and disable functions Kalle Valo
2020-12-11 17:35 ` [PATCH 10/10] ath11k: implement suspend for QCA6390 PCI devices Kalle Valo
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