diff options
| author | Felix Fietkau <nbd@openwrt.org> | 2014-10-25 17:19:30 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2014-10-27 14:16:18 -0400 |
| commit | 7b8aaead958e38b1eb8944c5f9c90ce066500268 (patch) | |
| tree | 1854b2009b0af5f7e5fca49313861cc2fb626c02 /drivers/net/wireless/ath/ath9k/calib.c | |
| parent | 70e535ed00290ed415ccfb200695ea30b6af51e5 (diff) | |
| download | linux-7b8aaead958e38b1eb8944c5f9c90ce066500268.tar.bz2 | |
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/calib.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/calib.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ath9k/calib.c b/drivers/net/wireless/ath/ath9k/calib.c index 278365b8a895..e200a6e3aca5 100644 --- a/drivers/net/wireless/ath/ath9k/calib.c +++ b/drivers/net/wireless/ath/ath9k/calib.c @@ -234,7 +234,7 @@ void ath9k_hw_start_nfcal(struct ath_hw *ah, bool update) REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_NF); } -void ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan) +int ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan) { struct ath9k_nfcal_hist *h = NULL; unsigned i, j; @@ -301,7 +301,7 @@ void ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan) ath_dbg(common, ANY, "Timeout while waiting for nf to load: AR_PHY_AGC_CONTROL=0x%x\n", REG_READ(ah, AR_PHY_AGC_CONTROL)); - return; + return -ETIMEDOUT; } /* @@ -322,6 +322,8 @@ void ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan) } } REGWRITE_BUFFER_FLUSH(ah); + + return 0; } |