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ath9k: disable PA predistortion by default, since it has been reported to reduce rx sensitivity on some devices (#12135)

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SVN-Revision: 33332
This commit is contained in:
Felix Fietkau 2012-09-08 13:18:58 +00:00
parent 6f6af5bee7
commit c9eea9dea9
1 changed files with 72 additions and 0 deletions
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72
package/mac80211/patches/565-ath9k_disable_paprd.patch Normal file
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@ -0,0 +1,72 @@
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -1767,6 +1767,8 @@ int ath9k_init_debug(struct ath_hw *ah)
sc->debug.debugfs_phy, sc, &fops_tx_chainmask);
debugfs_create_file("disable_ani", S_IRUSR | S_IWUSR,
sc->debug.debugfs_phy, sc, &fops_disable_ani);
+ debugfs_create_bool("paprd", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
+ &sc->sc_ah->config.enable_paprd);
debugfs_create_file("regidx", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
sc, &fops_regidx);
debugfs_create_file("regval", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -2521,10 +2521,6 @@ int ath9k_hw_fill_cap_info(struct ath_hw
pCap->rx_status_len = sizeof(struct ar9003_rxs);
pCap->tx_desc_len = sizeof(struct ar9003_txc);
pCap->txs_len = sizeof(struct ar9003_txs);
- if (!ah->config.paprd_disable &&
- ah->eep_ops->get_eeprom(ah, EEP_PAPRD) &&
- !AR_SREV_9462(ah))
- pCap->hw_caps |= ATH9K_HW_CAP_PAPRD;
} else {
pCap->tx_desc_len = sizeof(struct ath_desc);
if (AR_SREV_9280_20(ah))
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -236,7 +236,6 @@ enum ath9k_hw_caps {
ATH9K_HW_CAP_LDPC = BIT(6),
ATH9K_HW_CAP_FASTCLOCK = BIT(7),
ATH9K_HW_CAP_SGI_20 = BIT(8),
- ATH9K_HW_CAP_PAPRD = BIT(9),
ATH9K_HW_CAP_ANT_DIV_COMB = BIT(10),
ATH9K_HW_CAP_2GHZ = BIT(11),
ATH9K_HW_CAP_5GHZ = BIT(12),
@@ -287,12 +286,12 @@ struct ath9k_ops_config {
u8 pcie_clock_req;
u32 pcie_waen;
u8 analog_shiftreg;
- u8 paprd_disable;
u32 ofdm_trig_low;
u32 ofdm_trig_high;
u32 cck_trig_high;
u32 cck_trig_low;
u32 enable_ani;
+ u32 enable_paprd;
int serialize_regmode;
bool rx_intr_mitigation;
bool tx_intr_mitigation;
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
@@ -2982,6 +2982,10 @@ static u32 ath9k_hw_ar9300_get_eeprom(st
case EEP_RX_MASK:
return pBase->txrxMask & 0xf;
case EEP_PAPRD:
+ if (AR_SREV_9462(ah))
+ return false;
+ if (!ah->config.enable_paprd);
+ return false;
return !!(pBase->featureEnable & BIT(5));
case EEP_CHAIN_MASK_REDUCE:
return (pBase->miscConfiguration >> 0x3) & 0x1;
--- a/drivers/net/wireless/ath/ath9k/link.c
+++ b/drivers/net/wireless/ath/ath9k/link.c
@@ -423,7 +423,7 @@ set_timer:
cal_interval = min(cal_interval, (u32)short_cal_interval);
mod_timer(&common->ani.timer, jiffies + msecs_to_jiffies(cal_interval));
- if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_PAPRD) && ah->caldata) {
+ if (ah->eep_ops->get_eeprom(ah, EEP_PAPRD) && ah->caldata) {
if (!ah->caldata->paprd_done)
ieee80211_queue_work(sc->hw, &sc->paprd_work);
else if (!ah->paprd_table_write_done)