+++ /dev/null
-From: Felix Fietkau <nbd@nbd.name>
-Date: Mon, 11 Jul 2016 11:35:55 +0200
-Subject: [PATCH] ath9k_hw: implement temperature compensation support for
- AR9003+
-
-Signed-off-by: Felix Fietkau <nbd@nbd.name>
----
-
---- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
-+++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
-@@ -33,6 +33,7 @@ struct coeff {
-
- enum ar9003_cal_types {
- IQ_MISMATCH_CAL = BIT(0),
-+ TEMP_COMP_CAL = BIT(1),
- };
-
- static void ar9003_hw_setup_calibration(struct ath_hw *ah,
-@@ -58,6 +59,12 @@ static void ar9003_hw_setup_calibration(
- /* Kick-off cal */
- REG_SET_BIT(ah, AR_PHY_TIMING4, AR_PHY_TIMING4_DO_CAL);
- break;
-+ case TEMP_COMP_CAL:
-+ ath_dbg(common, CALIBRATE,
-+ "starting Temperature Compensation Calibration\n");
-+ REG_SET_BIT(ah, AR_CH0_THERM, AR_CH0_THERM_LOCAL);
-+ REG_SET_BIT(ah, AR_CH0_THERM, AR_CH0_THERM_START);
-+ break;
- default:
- ath_err(common, "Invalid calibration type\n");
- break;
-@@ -86,7 +93,8 @@ static bool ar9003_hw_per_calibration(st
- /*
- * Accumulate cal measures for active chains
- */
-- cur_caldata->calCollect(ah);
-+ if (cur_caldata->calCollect)
-+ cur_caldata->calCollect(ah);
- ah->cal_samples++;
-
- if (ah->cal_samples >= cur_caldata->calNumSamples) {
-@@ -99,7 +107,8 @@ static bool ar9003_hw_per_calibration(st
- /*
- * Process accumulated data
- */
-- cur_caldata->calPostProc(ah, numChains);
-+ if (cur_caldata->calPostProc)
-+ cur_caldata->calPostProc(ah, numChains);
-
- /* Calibration has finished. */
- caldata->CalValid |= cur_caldata->calType;
-@@ -314,9 +323,16 @@ static const struct ath9k_percal_data iq
- ar9003_hw_iqcalibrate
- };
-
-+static const struct ath9k_percal_data temp_cal_single_sample = {
-+ TEMP_COMP_CAL,
-+ MIN_CAL_SAMPLES,
-+ PER_MAX_LOG_COUNT,
-+};
-+
- static void ar9003_hw_init_cal_settings(struct ath_hw *ah)
- {
- ah->iq_caldata.calData = &iq_cal_single_sample;
-+ ah->temp_caldata.calData = &temp_cal_single_sample;
-
- if (AR_SREV_9300_20_OR_LATER(ah)) {
- ah->enabled_cals |= TX_IQ_CAL;
-@@ -324,7 +340,7 @@ static void ar9003_hw_init_cal_settings(
- ah->enabled_cals |= TX_IQ_ON_AGC_CAL;
- }
-
-- ah->supp_cals = IQ_MISMATCH_CAL;
-+ ah->supp_cals = IQ_MISMATCH_CAL | TEMP_COMP_CAL;
- }
-
- #define OFF_UPPER_LT 24
-@@ -1383,6 +1399,9 @@ static void ar9003_hw_init_cal_common(st
- INIT_CAL(&ah->iq_caldata);
- INSERT_CAL(ah, &ah->iq_caldata);
-
-+ INIT_CAL(&ah->temp_caldata);
-+ INSERT_CAL(ah, &ah->temp_caldata);
-+
- /* Initialize current pointer to first element in list */
- ah->cal_list_curr = ah->cal_list;
-
---- a/drivers/net/wireless/ath/ath9k/hw.h
-+++ b/drivers/net/wireless/ath/ath9k/hw.h
-@@ -830,6 +830,7 @@ struct ath_hw {
- /* Calibration */
- u32 supp_cals;
- struct ath9k_cal_list iq_caldata;
-+ struct ath9k_cal_list temp_caldata;
- struct ath9k_cal_list adcgain_caldata;
- struct ath9k_cal_list adcdc_caldata;
- struct ath9k_cal_list *cal_list;