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authorVasanthakumar Thiagarajan <vasanth@atheros.com>2010-11-30 23:24:09 -0800
committerJohn W. Linville <linville@tuxdriver.com>2010-12-02 14:10:33 -0500
commit9306990a656d9cfd8bf3586938012729c1f2ea50 (patch)
treedf06e13f81915f3d6443df640116d0c61c747634 /drivers/net
parent1937721f5637b53c794124cf4fd9edad0eb315ef (diff)
downloadblackbird-op-linux-9306990a656d9cfd8bf3586938012729c1f2ea50.tar.gz
blackbird-op-linux-9306990a656d9cfd8bf3586938012729c1f2ea50.zip
ath9k: Fix bug in reading input gpio state for ar9003
The register which gives input gpio state is 0x404c for ar9003, currently 0x4048 is wrongly used. This will disable RF and make it unusable on some of AR9003. Cc:stable@kernel.org Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/wireless/ath/ath9k/hw.c3
-rw-r--r--drivers/net/wireless/ath/ath9k/reg.h6
2 files changed, 6 insertions, 3 deletions
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 6ebc68bca91f..c7fbe25cc128 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -2044,7 +2044,8 @@ u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio)
val = REG_READ(ah, AR7010_GPIO_IN);
return (MS(val, AR7010_GPIO_IN_VAL) & AR_GPIO_BIT(gpio)) == 0;
} else if (AR_SREV_9300_20_OR_LATER(ah))
- return MS_REG_READ(AR9300, gpio) != 0;
+ return (MS(REG_READ(ah, AR_GPIO_IN), AR9300_GPIO_IN_VAL) &
+ AR_GPIO_BIT(gpio)) != 0;
else if (AR_SREV_9271(ah))
return MS_REG_READ(AR9271, gpio) != 0;
else if (AR_SREV_9287_11_OR_LATER(ah))
diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h
index dddf579aacf1..2c6a22fbb0f0 100644
--- a/drivers/net/wireless/ath/ath9k/reg.h
+++ b/drivers/net/wireless/ath/ath9k/reg.h
@@ -984,11 +984,13 @@ enum {
#define AR9287_GPIO_IN_VAL_S 11
#define AR9271_GPIO_IN_VAL 0xFFFF0000
#define AR9271_GPIO_IN_VAL_S 16
-#define AR9300_GPIO_IN_VAL 0x0001FFFF
-#define AR9300_GPIO_IN_VAL_S 0
#define AR7010_GPIO_IN_VAL 0x0000FFFF
#define AR7010_GPIO_IN_VAL_S 0
+#define AR_GPIO_IN 0x404c
+#define AR9300_GPIO_IN_VAL 0x0001FFFF
+#define AR9300_GPIO_IN_VAL_S 0
+
#define AR_GPIO_OE_OUT (AR_SREV_9300_20_OR_LATER(ah) ? 0x4050 : 0x404c)
#define AR_GPIO_OE_OUT_DRV 0x3
#define AR_GPIO_OE_OUT_DRV_NO 0x0
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