From: Rajkumar Manoharan Date: Thu, 15 Mar 2012 00:04:27 +0000 (+0530) Subject: ath9k: recover ar9380 chips from rare stuck state X-Git-Tag: v3.5-rc1~109^2~487^2^2~101 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=01e189182d62d6ee3603233fc88f9235e9830b92;p=pandora-kernel.git ath9k: recover ar9380 chips from rare stuck state In the experiment with Azimuth ADEPT-n testbed where the APs transmit power was reduced to 25% and the signal strength was futher attenuated by 20dB and induced a path loss of ~7dB, the station was reporting beacon losses and the following issue were observed. * rx clear is stuck at low for more than 300ms * dcu chain and complete state is stuck at one of the hang signature This patch triggers the hang detection logic that recovers the chip from any of the above conditions. As the issue was originally reported in ChromeOs with AR9382 chips, this detection logic is enabled only for AR9380/2 chips. Cc: Paul Stewart Reported-by: Gary Morain Signed-off-by: Rajkumar Manoharan Signed-off-by: John W. Linville --- Reading git-diff-tree failed