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authorFelix Fietkau <nbd@openwrt.org>2014-12-01 20:01:05 +0000
committerFelix Fietkau <nbd@openwrt.org>2014-12-01 20:01:05 +0000
commit2cfa6cfefd5afad7406d09eba47822535bc24f73 (patch)
treec565f7cb1cf6e0766077b3bf7f3fce121b19e179 /package/kernel/mac80211
parente4340ea1b7a74ca94292302da34b95f1b5cc1e81 (diff)
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ath10k: init devices synchronously to fix wifi detection at boot
Signed-off-by: Felix Fietkau <nbd@openwrt.org> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@43484 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'package/kernel/mac80211')
-rw-r--r--package/kernel/mac80211/patches/921-ath10k_init_devices_synchronously.patch33
1 files changed, 33 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/921-ath10k_init_devices_synchronously.patch b/package/kernel/mac80211/patches/921-ath10k_init_devices_synchronously.patch
new file mode 100644
index 0000000000..5fb50b4c79
--- /dev/null
+++ b/package/kernel/mac80211/patches/921-ath10k_init_devices_synchronously.patch
@@ -0,0 +1,33 @@
+From: Sven Eckelmann <sven@open-mesh.com>
+Date: Tue, 18 Nov 2014 12:29:28 +0100
+Subject: [PATCH] ath10k: Don't initialize devices asynchronously
+
+OpenWrt requires all PHYs to be initialized to create the configuration files
+during bootup. ath10k violates this because it delays the creation of the PHY
+to a not well defined point in the future.
+
+Forcing the work to be done immediately works around this problem but may also
+delay the boot when firmware images cannot be found.
+
+Signed-off-by: Sven Eckelmann <sven@open-mesh.com>
+---
+
+--- a/drivers/net/wireless/ath/ath10k/core.c
++++ b/drivers/net/wireless/ath/ath10k/core.c
+@@ -1119,6 +1119,16 @@ int ath10k_core_register(struct ath10k *
+
+ queue_work(ar->workqueue, &ar->register_work);
+
++ /* OpenWrt requires all PHYs to be initialized to create the
++ * configuration files during bootup. ath10k violates this
++ * because it delays the creation of the PHY to a not well defined
++ * point in the future.
++ *
++ * Forcing the work to be done immediately works around this problem
++ * but may also delay the boot when firmware images cannot be found.
++ */
++ flush_workqueue(ar->workqueue);
++
+ return 0;
+ }
+ EXPORT_SYMBOL(ath10k_core_register);