From 992a36a641651934a12ba1f0f1bf5fcc89e649f9 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Date: Tue, 14 Oct 2014 22:21:00 +0200
Subject: [PATCH] ath9k: do not overwrite AR_PHY_RADAR_1 MSB
Do not overwrite AR_PHY_RADAR_1 most significant byte default value
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
drivers/net/wireless/ath/ath9k/ar5008_phy.c | 5 ++++-
drivers/net/wireless/ath/ath9k/ar9003_phy.c | 5 ++++-
2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/ar5008_phy.c b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
index b72d0be716dbd..ba3d788c57d3f 100644
--- a/drivers/net/wireless/ath/ath9k/ar5008_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
@@ -1190,7 +1190,7 @@ static void ar5008_hw_set_nf_limits(struct ath_hw *ah)
static void ar5008_hw_set_radar_params(struct ath_hw *ah,
struct ath_hw_radar_conf *conf)
{
- 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);
@@ -1204,6 +1204,9 @@ static void ar5008_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);
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index 697c4ae90af00..30b2f95e926ce 100644
--- 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);
--
2.30.2