ath9k: do not overwrite AR_PHY_RADAR_1 MSB

[mirror_ubuntu-artful-kernel.git] / drivers / net / wireless / ath / ath9k / ar9003_phy.c

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index 697c4ae90af006f9c7f962bd21ea938af1892455..30b2f95e926ce5037e677cc58cbcf1224e1cbe7d 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -1348,7 +1348,7 @@ static void ar9003_hw_set_radar_params(struct ath_hw *ah,
                                       struct ath_hw_radar_conf *conf)
 {
        unsigned int regWrites = 0;
-       u32 radar_0 = 0, radar_1 = 0;
+       u32 radar_0 = 0, radar_1;
 
        if (!conf) {
                REG_CLR_BIT(ah, AR_PHY_RADAR_0, AR_PHY_RADAR_0_ENA);
@@ -1362,6 +1362,9 @@ static void ar9003_hw_set_radar_params(struct ath_hw *ah,
        radar_0 |= SM(conf->pulse_rssi, AR_PHY_RADAR_0_PRSSI);
        radar_0 |= SM(conf->pulse_inband, AR_PHY_RADAR_0_INBAND);
 
+       radar_1 = REG_READ(ah, AR_PHY_RADAR_1);
+       radar_1 &= ~(AR_PHY_RADAR_1_MAXLEN | AR_PHY_RADAR_1_RELSTEP_THRESH |
+                    AR_PHY_RADAR_1_RELPWR_THRESH);
        radar_1 |= AR_PHY_RADAR_1_MAX_RRSSI;
        radar_1 |= AR_PHY_RADAR_1_BLOCK_CHECK;
        radar_1 |= SM(conf->pulse_maxlen, AR_PHY_RADAR_1_MAXLEN);