Re: [PATCH 4.9.0-rc5] AR9300 calibration problems with antenna selected

From: miaoqing
Date: Mon Nov 21 2016 - 00:48:13 EST

I would prefer that you didn't submit this.

I recently tried to select a single antenna on AR9300 and it works for
30 seconds only. The subsequent calibration makes the RX signal level
to drop from the usual -30/-40 dBm to -70/-80 dBm, and the
transmission practically stops.

With the attached patch it works, though selecting the antenna doesn't
seem to have any visible effect, at least with "iw wlanX station dump"
(perhaps it works for TX).

I'm using ad-hoc mode:

rmmod ath9k
modprobe ath9k
iw dev wlan0 set type ibss
iw phy phyX set antenna 2

2 is a bad mask. We use bitmap, the valid masks are 1, 3, 7.