diff options
| author | Felix Fietkau <nbd@openwrt.org> | 2013-08-13 12:33:28 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-09-26 17:18:15 -0700 |
| commit | 4bd13a76d67743f11e4f05c60340a333f54bb92b (patch) | |
| tree | 5305bd56a8091ac5a8c18c76818a34d86490d43a | |
| parent | 8e4d4c932d23091953185297d40315e8ba76837f (diff) | |
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>
| -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 e1714d7c9eeb..3457ca5382f4 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c @@ -1076,6 +1076,10 @@ 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, |