[058/272] ath9k_hw: Fix XPABIAS level configuration for AR9003

From: Greg KH
Date: Tue Feb 15 2011 - 19:19:48 EST


2.6.37-stable review patch. If anyone has any objections, please let us know.

------------------

From: Vasanthakumar Thiagarajan <vasanth@xxxxxxxxxxx>

commit 52a0e2477dac2106bc1688cbe9615cdafc9deb7d upstream.

Improper configuration of 0x16288 and 0x16290 would affect transmission.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@xxxxxxxxxxx>
Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
drivers/net/wireless/ath/ath9k/ar9003_eeprom.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)

--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
@@ -22,12 +22,14 @@
#define COMP_CKSUM_LEN 2

#define AR_CH0_TOP (0x00016288)
-#define AR_CH0_TOP_XPABIASLVL (0x3)
+#define AR_CH0_TOP_XPABIASLVL (0x300)
#define AR_CH0_TOP_XPABIASLVL_S (8)

#define AR_CH0_THERM (0x00016290)
-#define AR_CH0_THERM_SPARE (0x3f)
-#define AR_CH0_THERM_SPARE_S (0)
+#define AR_CH0_THERM_XPABIASLVL_MSB 0x3
+#define AR_CH0_THERM_XPABIASLVL_MSB_S 0
+#define AR_CH0_THERM_XPASHORT2GND 0x4
+#define AR_CH0_THERM_XPASHORT2GND_S 2

#define AR_SWITCH_TABLE_COM_ALL (0xffff)
#define AR_SWITCH_TABLE_COM_ALL_S (0)
@@ -995,9 +997,9 @@ static s32 ar9003_hw_xpa_bias_level_get(
static void ar9003_hw_xpa_bias_level_apply(struct ath_hw *ah, bool is2ghz)
{
int bias = ar9003_hw_xpa_bias_level_get(ah, is2ghz);
- REG_RMW_FIELD(ah, AR_CH0_TOP, AR_CH0_TOP_XPABIASLVL, (bias & 0x3));
- REG_RMW_FIELD(ah, AR_CH0_THERM, AR_CH0_THERM_SPARE,
- ((bias >> 2) & 0x3));
+ REG_RMW_FIELD(ah, AR_CH0_TOP, AR_CH0_TOP_XPABIASLVL, bias);
+ REG_RMW_FIELD(ah, AR_CH0_THERM, AR_CH0_THERM_XPABIASLVL_MSB, bias >> 2);
+ REG_RMW_FIELD(ah, AR_CH0_THERM, AR_CH0_THERM_XPASHORT2GND, 1);
}

static u32 ar9003_hw_ant_ctrl_common_get(struct ath_hw *ah, bool is2ghz)


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