Commit 1ffc1c61 authored by Jouni Malinen's avatar Jouni Malinen Committed by John W. Linville
Browse files

ath9k: Do not try to calibrate radio when in sleep mode



When the chip is in sleep mode, there is no point trying to calibrate
the radio since it will just results in incorrect values being read
from registers and other potential issues. In addition, if we actually
start processing calibrate, do not allow the chip to be put into sleep
until we have completed the calibration step.
Signed-off-by: default avatarJouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 9a23f9ca
......@@ -329,6 +329,12 @@ static void ath_ani_calibrate(unsigned long data)
if (sc->sc_flags & SC_OP_SCANNING)
goto set_timer;
/* Only calibrate if awake */
if (sc->sc_ah->power_mode != ATH9K_PM_AWAKE)
goto set_timer;
ath9k_ps_wakeup(sc);
/* Long calibration runs independently of short calibration. */
if ((timestamp - sc->ani.longcal_timer) >= ATH_LONG_CALINTERVAL) {
longcal = true;
......@@ -380,6 +386,8 @@ static void ath_ani_calibrate(unsigned long data)
}
}
ath9k_ps_restore(sc);
set_timer:
/*
* Set timer interval based on previous results.
......
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