diff options
| author | Felix Fietkau <nbd@openwrt.org> | 2013-08-13 12:33:28 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2013-08-15 16:07:58 -0400 |
| commit | a1c781bb20ac1e03280e420abd47a99eb8bbdd3b (patch) | |
| tree | 114f7f3d5b01fb7c364802f43fa470dcf56b91e4 | |
| parent | ca6d4a74c4dea24277d4ce2df4940da6003a2a16 (diff) | |
ath9k: avoid accessing MRC registers on single-chain devices
They are not implemented, and accessing them might trigger errors
Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -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 39c37309f39e..18a5aa4fe406 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c @@ -1172,6 +1172,10 @@ skip_ws_det: * 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, |