101 lines
3 KiB
Diff
101 lines
3 KiB
Diff
From: Felix Fietkau <nbd@nbd.name>
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Date: Tue, 11 Oct 2016 19:45:41 +0200
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Subject: [PATCH] Revert "ath9k_hw: implement temperature compensation support
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for AR9003+"
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This reverts commit 171f6402e4aa5cd3b8407f82501f7ea21fa54ccc.
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Some users report that this commit causes a regression in performance
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under some conditions.
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
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+++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
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@@ -33,7 +33,6 @@ struct coeff {
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enum ar9003_cal_types {
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IQ_MISMATCH_CAL = BIT(0),
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- TEMP_COMP_CAL = BIT(1),
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};
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static void ar9003_hw_setup_calibration(struct ath_hw *ah,
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@@ -59,12 +58,6 @@ static void ar9003_hw_setup_calibration(
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/* Kick-off cal */
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REG_SET_BIT(ah, AR_PHY_TIMING4, AR_PHY_TIMING4_DO_CAL);
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break;
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- case TEMP_COMP_CAL:
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- ath_dbg(common, CALIBRATE,
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- "starting Temperature Compensation Calibration\n");
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- REG_SET_BIT(ah, AR_CH0_THERM, AR_CH0_THERM_LOCAL);
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- REG_SET_BIT(ah, AR_CH0_THERM, AR_CH0_THERM_START);
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- break;
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default:
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ath_err(common, "Invalid calibration type\n");
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break;
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@@ -93,8 +86,7 @@ static bool ar9003_hw_per_calibration(st
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/*
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* Accumulate cal measures for active chains
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*/
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- if (cur_caldata->calCollect)
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- cur_caldata->calCollect(ah);
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+ cur_caldata->calCollect(ah);
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ah->cal_samples++;
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if (ah->cal_samples >= cur_caldata->calNumSamples) {
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@@ -107,8 +99,7 @@ static bool ar9003_hw_per_calibration(st
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/*
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* Process accumulated data
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*/
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- if (cur_caldata->calPostProc)
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- cur_caldata->calPostProc(ah, numChains);
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+ cur_caldata->calPostProc(ah, numChains);
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/* Calibration has finished. */
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caldata->CalValid |= cur_caldata->calType;
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@@ -323,16 +314,9 @@ static const struct ath9k_percal_data iq
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ar9003_hw_iqcalibrate
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};
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-static const struct ath9k_percal_data temp_cal_single_sample = {
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- TEMP_COMP_CAL,
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- MIN_CAL_SAMPLES,
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- PER_MAX_LOG_COUNT,
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-};
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-
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static void ar9003_hw_init_cal_settings(struct ath_hw *ah)
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{
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ah->iq_caldata.calData = &iq_cal_single_sample;
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- ah->temp_caldata.calData = &temp_cal_single_sample;
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if (AR_SREV_9300_20_OR_LATER(ah)) {
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ah->enabled_cals |= TX_IQ_CAL;
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@@ -340,7 +324,7 @@ static void ar9003_hw_init_cal_settings(
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ah->enabled_cals |= TX_IQ_ON_AGC_CAL;
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}
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- ah->supp_cals = IQ_MISMATCH_CAL | TEMP_COMP_CAL;
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+ ah->supp_cals = IQ_MISMATCH_CAL;
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}
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#define OFF_UPPER_LT 24
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@@ -1399,9 +1383,6 @@ static void ar9003_hw_init_cal_common(st
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INIT_CAL(&ah->iq_caldata);
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INSERT_CAL(ah, &ah->iq_caldata);
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- INIT_CAL(&ah->temp_caldata);
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- INSERT_CAL(ah, &ah->temp_caldata);
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-
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/* Initialize current pointer to first element in list */
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ah->cal_list_curr = ah->cal_list;
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--- a/drivers/net/wireless/ath/ath9k/hw.h
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+++ b/drivers/net/wireless/ath/ath9k/hw.h
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@@ -830,7 +830,6 @@ struct ath_hw {
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/* Calibration */
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u32 supp_cals;
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struct ath9k_cal_list iq_caldata;
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- struct ath9k_cal_list temp_caldata;
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struct ath9k_cal_list adcgain_caldata;
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struct ath9k_cal_list adcdc_caldata;
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struct ath9k_cal_list *cal_list;
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