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| author | Felix Fietkau <nbd@openwrt.org> | 2013-08-13 12:33:28 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-09-26 16:52:47 -0700 |
| commit | 8600be1d3927e177b80c7ee9263ef3b28a0ba115 (patch) | |
| tree | ce447109cc38fe5d7957a924493bf43e24b926d8 /drivers | |
| parent | be84480edb2b552c2fb9ca940c6bb07464306108 (diff) | |
| download | kernel_samsung_smdk4412-8600be1d3927e177b80c7ee9263ef3b28a0ba115.zip kernel_samsung_smdk4412-8600be1d3927e177b80c7ee9263ef3b28a0ba115.tar.gz kernel_samsung_smdk4412-8600be1d3927e177b80c7ee9263ef3b28a0ba115.tar.bz2 | |
ath9k: avoid accessing MRC registers on single-chain devices
commit a1c781bb20ac1e03280e420abd47a99eb8bbdd3b upstream.
They are not implemented, and accessing them might trigger errors
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ar9003_phy.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c index 892c48b..b8a26d2 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c @@ -1005,6 +1005,10 @@ static bool ar9003_hw_ani_control(struct ath_hw *ah, * is_on == 0 means MRC CCK is OFF (more noise imm) */ bool is_on = param ? 1 : 0; + + if (ah->caps.rx_chainmask == 1) + break; + REG_RMW_FIELD(ah, AR_PHY_MRC_CCK_CTRL, AR_PHY_MRC_CCK_ENABLE, is_on); REG_RMW_FIELD(ah, AR_PHY_MRC_CCK_CTRL, |