Files
android_kernel_xiaomi_sm8450/drivers/net/wireless/ath/ath9k
Felix Fietkau a34d0a0da1 ath9k_hw: check if the chip failed to wake up
In an RFC patch, Sven Eckelmann and Simon Wunderlich reported:

"QCA 802.11n chips (especially AR9330/AR9340) sometimes end up in a
state in which a read of AR_CFG always returns 0xdeadbeef.
This should not happen when when the power_mode of the device is
ATH9K_PM_AWAKE."

Include the check for the default register state in the existing MAC
hang check.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-02-07 11:00:21 +02:00
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