mac80211: ath11k: sync with ath-next

[openwrt/openwrt.git] / package / kernel / mac80211 / patches / ath11k / 0037-wifi-ath11k-allow-system-suspend-to-survive-ath11k.patch

diff --git a/package/kernel/mac80211/patches/ath11k/0037-wifi-ath11k-allow-system-suspend-to-survive-ath11k.patch b/package/kernel/mac80211/patches/ath11k/0037-wifi-ath11k-allow-system-suspend-to-survive-ath11k.patch
new file mode 100644 (file)
index 0000000..cd8ab3d
--- /dev/null
+++ b/package/kernel/mac80211/patches/ath11k/0037-wifi-ath11k-allow-system-suspend-to-survive-ath11k.patch
@@ -0,0 +1,43 @@
+From 7c15430822e71e90203d87e6d0cfe83fa058b0dc Mon Sep 17 00:00:00 2001
+From: Len Brown <len.brown@intel.com>
+Date: Wed, 1 Feb 2023 12:32:01 -0600
+Subject: [PATCH] wifi: ath11k: allow system suspend to survive ath11k
+
+When ath11k runs into internal errors upon suspend,
+it returns an error code to pci_pm_suspend, which
+aborts the entire system suspend.
+
+The driver should not abort system suspend, but should
+keep its internal errors to itself, and allow the system
+to suspend.  Otherwise, a user can suspend a laptop
+by closing the lid and sealing it into a case, assuming
+that is will suspend, rather than heating up and draining
+the battery when in transit.
+
+In practice, the ath11k device seems to have plenty of transient
+errors, and subsequent suspend cycles after this failure
+often succeed.
+
+https://bugzilla.kernel.org/show_bug.cgi?id=216968
+
+Fixes: d1b0c33850d29 ("ath11k: implement suspend for QCA6390 PCI devices")
+
+Signed-off-by: Len Brown <len.brown@intel.com>
+Cc: stable@vger.kernel.org
+Signed-off-by: Kalle Valo <kvalo@kernel.org>
+Link: https://lore.kernel.org/r/20230201183201.14431-1-len.brown@intel.com
+---
+ drivers/net/wireless/ath/ath11k/pci.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/net/wireless/ath/ath11k/pci.c
++++ b/drivers/net/wireless/ath/ath11k/pci.c
+@@ -981,7 +981,7 @@ static __maybe_unused int ath11k_pci_pm_
+       if (ret)
+               ath11k_warn(ab, "failed to suspend core: %d\n", ret);
+ 
+-      return ret;
++      return 0;
+ }
+ 
+ static __maybe_unused int ath11k_pci_pm_resume(struct device *dev)