iio: adc: adrv902x: Add tracking config

Add tracking configuration settings.

Signed-off-by: George Mois <[email protected]>

Author: danmois

drivers/iio/adc/adrv902x/adrv9025.c

@@ -47,6 +47,7 @@ enum adrv9025_iio_dev_attr {
 	ADRV9025_CAL_MASK,
 	ADRV9025_DPD_TX_MASK,
 	ADRV9025_DPD_RESET,
+	ADRV9025_DPD_CONFIG_SET,
 	adrv9025_JESD204_FSM_ERROR,
 	adrv9025_JESD204_FSM_PAUSED,
 	adrv9025_JESD204_FSM_STATE,
@@ -398,6 +399,20 @@ static ssize_t adrv9025_phy_store(struct device *dev,
 				ret = adrv9025_dev_err(phy);
 		}
 		break;
+	case ADRV9025_DPD_CONFIG_SET:
+		ret = kstrtobool(buf, &enable);
+		if (ret)
+			break;
+
+		phy->dpdTrackingConfig->txChannelMask = phy->dpdTxChannel;
+
+		if (enable) {
+			ret = adi_adrv9025_DpdTrackingConfigSet(phy->madDevice,
+								phy->dpdTrackingConfig);
+			if (ret)
+				ret = adrv9025_dev_err(phy);
+		}
+		break;
 	case adrv9025_JESD204_FSM_RESUME:
 		if (!phy->jdev) {
 			ret = -ENOTSUPP;
@@ -589,6 +604,9 @@ static IIO_DEVICE_ATTR(dpd_tx_mask, 0644, adrv9025_phy_show,
 static IIO_DEVICE_ATTR(dpd_reset, 0200, NULL,
 		       adrv9025_phy_store, ADRV9025_DPD_RESET);
 
+static IIO_DEVICE_ATTR(dpd_tracking_config_set, 0200, NULL,
+		       adrv9025_phy_store, ADRV9025_DPD_CONFIG_SET);
+
 static IIO_DEVICE_ATTR(jesd204_fsm_error, 0444,
 		       adrv9025_phy_show,
 		       NULL,
@@ -624,6 +642,7 @@ static struct attribute *adrv9025_phy_attributes[] = {
 	&iio_dev_attr_calibrate_mask.dev_attr.attr,
 	&iio_dev_attr_dpd_tx_mask.dev_attr.attr,
 	&iio_dev_attr_dpd_reset.dev_attr.attr,
+	&iio_dev_attr_dpd_tracking_config_set.dev_attr.attr,
 	&iio_dev_attr_jesd204_fsm_error.dev_attr.attr,
 	&iio_dev_attr_jesd204_fsm_state.dev_attr.attr,
 	&iio_dev_attr_jesd204_fsm_paused.dev_attr.attr,
@@ -2952,6 +2971,72 @@ static int adrv9025_phy_parse_agc_dt(struct iio_dev *iodev, struct device *dev)
 				&phy->agcConfig->agcSlowloopFastGainChangeBlockEnable, 0, 0, 1);
 }
 
+static int adrv9025_phy_parse_dpd_config_dt(struct iio_dev *iodev, struct device *dev)
+{
+	struct adrv9025_rf_phy *phy = iio_priv(iodev);
+	struct device_node *np = dev->of_node;
+	int ret;
+
+	ret = ADRV9025_OF_PROP("adi,dpd-indirect-regularization-value",
+			       &phy->dpdTrackingConfig->dpdIndirectRegularizationValue, 20, 0, 63);
+	if (ret)
+		return ret;
+
+	ret = ADRV9025_OF_PROP("adi,dpd-direct-regularization-value",
+			       &phy->dpdTrackingConfig->dpdDirectRegularizationValue, 35, 0, 63);
+	if (ret)
+		return ret;
+
+	ret = ADRV9025_OF_PROP("adi,dpd-samples",
+			       &phy->dpdTrackingConfig->dpdSamples, 16384, 4096, 61440);
+	if (ret)
+		return ret;
+
+	ret = ADRV9025_OF_PROP("adi,dpd-m-threshold",
+			       &phy->dpdTrackingConfig->dpdMThreshold, 2920, 0, 32767);
+	if (ret)
+		return ret;
+
+	ret = ADRV9025_OF_PROP("adi,dpd-peak-search-window-size",
+			       &phy->dpdTrackingConfig->dpdPeakSearchWindowSize, 65535, 0, 16777215);
+	if (ret)
+		return ret;
+
+	ret = ADRV9025_OF_PROP("adi,dpd-update-mode",
+			       &phy->dpdTrackingConfig->dpdUpdateMode, 0, 0, 2);
+	if (ret)
+		return ret;
+
+	ret = ADRV9025_OF_PROP("adi,dpd-min-avg-signal-level",
+			       &phy->dpdTrackingConfig->minAvgSignalLevel, 519, 0, 65535);
+	if (ret)
+		return ret;
+
+	ret = ADRV9025_OF_PROP("adi,dpd-mu",
+			       &phy->dpdTrackingConfig->dpdMu, 50, 0, 100);
+	if (ret)
+		return ret;
+
+	ret = ADRV9025_OF_PROP("adi,dpd-min-avg-signal-level-orx",
+			       &phy->dpdTrackingConfig->minAvgSignalLevelOrx, 519, 0, 65535);
+	if (ret)
+		return ret;
+
+	ret = ADRV9025_OF_PROP("adi,dpd-filter-sel",
+			       &phy->dpdTrackingConfig->dpdFilterSel, 0, 0, 1);
+	if (ret)
+		return ret;
+
+	ret = ADRV9025_OF_PROP("adi,dpd-enable-direct-learning",
+			       &phy->dpdTrackingConfig->enableDirectLearning, 0, 0, 1);
+	if (ret)
+		return ret;
+
+	return ADRV9025_OF_PROP("adi,dpd-indirect-regularization-low-power-value",
+				&phy->dpdTrackingConfig->dpdIndirectRegularizationLowPowerValue,
+				20, 0, 63);
+}
+
 static int adrv9025_parse_dpd_coef(struct adrv9025_rf_phy *phy, char *data, u32 size)
 {
 	u8 dpdNumFeatures = 0, i, j, k, lut;
@@ -3057,12 +3142,19 @@ static int adrv9025_probe(struct spi_device *spi)
 	phy->dpdModelConfig = kzalloc(sizeof(adi_adrv9025_DpdModelConfig_v2_t), GFP_KERNEL);
 	if (!(phy->dpdModelConfig))
 		return -ENOMEM;
+	phy->dpdTrackingConfig = kzalloc(sizeof(adi_adrv9025_DpdTrackingConfig_t), GFP_KERNEL);
+	if (!(phy->dpdTrackingConfig))
+		return -ENOMEM;
 	mutex_init(&phy->lock);
 
 	ret = adrv9025_phy_parse_agc_dt(indio_dev, &spi->dev);
 	if (ret)
 		return ret;
 
+	ret = adrv9025_phy_parse_dpd_config_dt(indio_dev, &spi->dev);
+	if (ret)
+		return ret;
+
 	priv = jesd204_dev_priv(jdev);
 	priv->phy = phy;
 

drivers/iio/adc/adrv902x/adrv9025.h

@@ -171,6 +171,7 @@ struct adrv9025_rf_phy {
 	struct bin_attribute bin;
 	adi_adrv9025_DpdModelConfig_v2_t *dpdModelConfig;
 	adi_adrv9025_TxChannels_e dpdTxChannel;
+	adi_adrv9025_DpdTrackingConfig_t *dpdTrackingConfig;
 };
 
 int adrv9025_hdl_loopback(struct adrv9025_rf_phy *phy, bool enable);