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>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 6ebc68bca91..c7fbe25cc12 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))