| From | Ben Hutchings <> | Date | Mon, 21 Oct 2013 09:46:28 +0100 | Subject | [PATCH 3.2 027/149] ath9k: avoid accessing MRC registers on single-chain devices |
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3.2.52-rc1 review patch. If anyone has any objections, please let me know.
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From: Felix Fietkau <nbd@openwrt.org>
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: Ben Hutchings <ben@decadent.org.uk> --- drivers/net/wireless/ath/ath9k/ar9003_phy.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c @@ -1016,6 +1016,10 @@ static bool ar9003_hw_ani_control(struct * 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,
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