1 // SPDX-License-Identifier: GPL-2.0
9 #include <linux/nvmem-consumer.h>
11 #include "tsens.h"
13 /* ----- SROT ------ */
34 /* ----- TM ------ */
48 /* v2.x: 8996, 8998, sdm845 */
57 	.trip_min_temp	= -40000,
84 	/* ----- SROT ------ */
97 	/* ----- TM ------ */
99 	/* v2 has separate enables for UPPER/LOWER/CRITICAL interrupts */
118 	/* WATCHDOG on v2.3 or later */
152 	ret = snprintf(name, sizeof(name), "tsens_sens%d_off", sensor->hw_id);  in tsens_v2_calibrate_sensor()
156 	ret = nvmem_cell_read_variable_le_u32(dev, name, &sensor->offset);  in tsens_v2_calibrate_sensor()
163 		slope = (TWO_PT_SHIFTED_GAIN / (base1 - base0));  in tsens_v2_calibrate_sensor()
165 		czero = (base0 + sensor->offset - ((base1 - base0) / 3));  in tsens_v2_calibrate_sensor()
169 		czero = base0 + sensor->offset - ONE_PT_CZERO_CONST;  in tsens_v2_calibrate_sensor()
182 	regmap_write(map, SENSOR_CONVERSION(sensor->hw_id), val);  in tsens_v2_calibrate_sensor()
189 	struct device *dev = priv->dev;  in tsens_v2_calibration()
193 	if (priv->num_sensors > MAX_SENSORS)  in tsens_v2_calibration()
194 		return -EINVAL;  in tsens_v2_calibration()
196 	ret = nvmem_cell_read_variable_le_u32(priv->dev, "mode", &mode);  in tsens_v2_calibration()
197 	if (ret == -ENOENT)  in tsens_v2_calibration()
198 		dev_warn(priv->dev, "Calibration data not present in DT\n");  in tsens_v2_calibration()
202 	dev_dbg(priv->dev, "calibration mode is %d\n", mode);  in tsens_v2_calibration()
204 	ret = nvmem_cell_read_variable_le_u32(priv->dev, "base0", &base0);  in tsens_v2_calibration()
208 	ret = nvmem_cell_read_variable_le_u32(priv->dev, "base1", &base1);  in tsens_v2_calibration()
213 	for (i = 0; i < priv->num_sensors; i++) {  in tsens_v2_calibration()
214 		ret = tsens_v2_calibrate_sensor(dev, &priv->sensor[i], priv->srot_map,  in tsens_v2_calibration()
225 	struct device *dev = priv->dev;  in init_tsens_v2_no_rpm()
233 	priv->rf[CODE_OR_TEMP] = devm_regmap_field_alloc(dev, priv->srot_map,  in init_tsens_v2_no_rpm()
234 							 priv->fields[CODE_OR_TEMP]);  in init_tsens_v2_no_rpm()
235 	if (IS_ERR(priv->rf[CODE_OR_TEMP]))  in init_tsens_v2_no_rpm()
236 		return PTR_ERR(priv->rf[CODE_OR_TEMP]);  in init_tsens_v2_no_rpm()
238 	priv->rf[MAIN_MEASURE_PERIOD] = devm_regmap_field_alloc(dev, priv->srot_map,  in init_tsens_v2_no_rpm()
239 								priv->fields[MAIN_MEASURE_PERIOD]);  in init_tsens_v2_no_rpm()
240 	if (IS_ERR(priv->rf[MAIN_MEASURE_PERIOD]))  in init_tsens_v2_no_rpm()
241 		return PTR_ERR(priv->rf[MAIN_MEASURE_PERIOD]);  in init_tsens_v2_no_rpm()
243 	regmap_field_write(priv->rf[TSENS_SW_RST], SW_RST_ASSERT);  in init_tsens_v2_no_rpm()
245 	regmap_field_write(priv->rf[MAIN_MEASURE_PERIOD], MEASURE_PERIOD_2mSEC);  in init_tsens_v2_no_rpm()
248 	for (i = 0; i < priv->num_sensors; i++)  in init_tsens_v2_no_rpm()
249 		val |= 1 << priv->sensor[i].hw_id;  in init_tsens_v2_no_rpm()
251 	regmap_field_write(priv->rf[SENSOR_EN], val);  in init_tsens_v2_no_rpm()
253 	/* Select temperature format, unit is deci-Celsius */  in init_tsens_v2_no_rpm()
254 	regmap_field_write(priv->rf[CODE_OR_TEMP], RESULT_FORMAT_TEMP);  in init_tsens_v2_no_rpm()
256 	regmap_field_write(priv->rf[TSENS_SW_RST], SW_RST_DEASSERT);  in init_tsens_v2_no_rpm()
258 	regmap_field_write(priv->rf[TSENS_EN], TSENS_ENABLE);  in init_tsens_v2_no_rpm()