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ath9k_hw: fix BT mute at hw init

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WLAN driver initialization is muting BT which is terminating
the ongoing BT traffic. The reason to mute BT is to avoid any
incoming MCI messages from BT when MCI reset is in progress that
could corrupt WLAN MCI RX state machine. But we should not
dedicate radio completely to WLAN in driver init itself. So this
patch removes the wlan weightage changes from mute BT to retain
BT connection.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rajkumar Manoharan 2012-06-18 19:02:37 +05:30 committed by John W. Linville
parent 305dd09f8c
commit a68807e917
2 changed files with 0 additions and 8 deletions
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4
drivers/net/wireless/ath/ath9k/ar9003_mci.c
View File

@ -767,10 +767,6 @@ static void ar9003_mci_mute_bt(struct ath_hw *ah)
{
/* disable all MCI messages */
REG_WRITE(ah, AR_MCI_MSG_ATTRIBUTES_TABLE, 0xffff0000);
REG_WRITE(ah, AR_BTCOEX_WL_WEIGHTS0, 0xffffffff);
REG_WRITE(ah, AR_BTCOEX_WL_WEIGHTS1, 0xffffffff);
REG_WRITE(ah, AR_BTCOEX_WL_WEIGHTS2, 0xffffffff);
REG_WRITE(ah, AR_BTCOEX_WL_WEIGHTS3, 0xffffffff);
REG_SET_BIT(ah, AR_MCI_TX_CTRL, AR_MCI_TX_CTRL_DISABLE_LNA_UPDATE);
/* wait pending HW messages to flush out */

4
drivers/net/wireless/ath/ath9k/reg.h
View File

@ -2162,10 +2162,6 @@ enum {
#define AR_BTCOEX_CTRL_SPDT_POLARITY 0x80000000
#define AR_BTCOEX_CTRL_SPDT_POLARITY_S 31
#define AR_BTCOEX_WL_WEIGHTS0 0x18b0
#define AR_BTCOEX_WL_WEIGHTS1 0x18b4
#define AR_BTCOEX_WL_WEIGHTS2 0x18b8
#define AR_BTCOEX_WL_WEIGHTS3 0x18bc
#define AR_BTCOEX_MAX_TXPWR(_x) (0x18c0 + ((_x) << 2))
#define AR_BTCOEX_WL_LNA 0x1940
#define AR_BTCOEX_RFGAIN_CTRL 0x1944