diff options
| author | Felix Fietkau <nbd@openwrt.org> | 2014-10-25 19:19:30 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2014-10-27 21:16:18 +0300 |
| commit | 7b8aaead958e38b1eb8944c5f9c90ce066500268 (patch) | |
| tree | 1854b2009b0af5f7e5fca49313861cc2fb626c02 /drivers/net/wireless/ath/ath9k/ar9002_calib.c | |
| parent | 70e535ed00290ed415ccfb200695ea30b6af51e5 (diff) | |
| download | linux-7b8aaead958e38b1eb8944c5f9c90ce066500268.tar.xz | |
ath9k: restart hardware after noise floor calibration failure
When NF calibration fails, the radio often becomes deaf. The usual
hardware hang checks do not detect this, so it's better to issue a reset
when that happens.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/ar9002_calib.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ar9002_calib.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9002_calib.c b/drivers/net/wireless/ath/ath9k/ar9002_calib.c index cdc74005650c..6bfdebfcdeef 100644 --- a/drivers/net/wireless/ath/ath9k/ar9002_calib.c +++ b/drivers/net/wireless/ath/ath9k/ar9002_calib.c @@ -657,14 +657,13 @@ static void ar9002_hw_olc_temp_compensation(struct ath_hw *ah) ar9280_hw_olc_temp_compensation(ah); } -static bool ar9002_hw_calibrate(struct ath_hw *ah, - struct ath9k_channel *chan, - u8 rxchainmask, - bool longcal) +static int ar9002_hw_calibrate(struct ath_hw *ah, struct ath9k_channel *chan, + u8 rxchainmask, bool longcal) { bool iscaldone = true; struct ath9k_cal_list *currCal = ah->cal_list_curr; bool nfcal, nfcal_pending = false; + int ret; nfcal = !!(REG_READ(ah, AR_PHY_AGC_CONTROL) & AR_PHY_AGC_CONTROL_NF); if (ah->caldata) @@ -698,7 +697,9 @@ static bool ar9002_hw_calibrate(struct ath_hw *ah, * NF is slow time-variant, so it is OK to use a * historical value. */ - ath9k_hw_loadnf(ah, ah->curchan); + ret = ath9k_hw_loadnf(ah, ah->curchan); + if (ret < 0) + return ret; } if (longcal) { |