ath5k: Do ADC test during reset

 * Do an ADC test during reset to match recent regdumps

Changes-licensed-under: ISC
Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath5k/hw.c b/drivers/net/wireless/ath5k/hw.c
index dc51b844c62d..3937e46e4735 100644
--- a/drivers/net/wireless/ath5k/hw.c
+++ b/drivers/net/wireless/ath5k/hw.c
@@ -1079,6 +1079,19 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum ieee80211_if_types op_mode,
         }
 
         /*
+         * Perform ADC test (?)
+         */
+        data = ath5k_hw_reg_read(ah, AR5K_PHY_TST1);
+        ath5k_hw_reg_write(ah, AR5K_PHY_TST1_TXHOLD, AR5K_PHY_TST1);
+        for (i = 0; i <= 20; i++) {
+                if (!(ath5k_hw_reg_read(ah, AR5K_PHY_ADC_TEST) & 0x10))
+                        break;
+                udelay(200);
+        }
+        ath5k_hw_reg_write(ah, data, AR5K_PHY_TST1);
+        data = 0;
+
+        /*
          * Enable calibration and wait until completion
          */
         AR5K_REG_ENABLE_BITS(ah, AR5K_PHY_AGCCTL,