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Commit a1c781bb authored by Felix Fietkau's avatar Felix Fietkau Committed by John W. Linville
Browse files

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: default avatarFelix Fietkau <nbd@openwrt.org>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent ca6d4a74

drivers/net/wireless/ath/ath9k/ar9003_phy.c

+4 −0
Original line number Diff line number Diff line
@@ -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,