Lines Matching refs:chip

75 	/* protects .thresh, .stage and chip registers */
85 static int qpnp_tm_read(struct qpnp_tm_chip *chip, u16 addr, u8 *data)
90 	ret = regmap_read(chip->map, chip->base + addr, &val);
98 static int qpnp_tm_write(struct qpnp_tm_chip *chip, u16 addr, u8 data)
100 	return regmap_write(chip->map, chip->base + addr, data);
105  * @chip:		Pointer to the qpnp_tm chip
109 static int qpnp_tm_get_temp_stage(struct qpnp_tm_chip *chip)
114 	ret = qpnp_tm_read(chip, QPNP_TM_REG_STATUS, &reg);
118 	if (chip->subtype == QPNP_TM_SUBTYPE_GEN1)
130 static int qpnp_tm_update_temp_no_adc(struct qpnp_tm_chip *chip)
135 	WARN_ON(!mutex_is_locked(&chip->lock));
137 	ret = qpnp_tm_get_temp_stage(chip);
142 	if (chip->subtype == QPNP_TM_SUBTYPE_GEN1) {
144 		stage_old = chip->stage;
147 		stage_old = alarm_state_map[chip->stage];
152 		chip->temp = (stage_new - 1) * TEMP_STAGE_STEP +
153 			     chip->thresh * TEMP_THRESH_STEP +
157 		chip->temp = stage_new * TEMP_STAGE_STEP +
158 			     chip->thresh * TEMP_THRESH_STEP -
162 	chip->stage = stage;
169 	struct qpnp_tm_chip *chip = data;
175 	if (!chip->initialized) {
180 	if (!chip->adc) {
181 		mutex_lock(&chip->lock);
182 		ret = qpnp_tm_update_temp_no_adc(chip);
183 		mutex_unlock(&chip->lock);
187 		ret = iio_read_channel_processed(chip->adc, &mili_celsius);
191 		chip->temp = mili_celsius;
194 	*temp = chip->temp;
199 static int qpnp_tm_update_critical_trip_temp(struct qpnp_tm_chip *chip,
205 	WARN_ON(!mutex_is_locked(&chip->lock));
215 		chip->thresh = THRESH_MIN;
220 		chip->thresh = THRESH_MAX -
225 		chip->thresh = THRESH_MAX;
227 		if (chip->adc)
230 			dev_warn(chip->dev,
235 	reg |= chip->thresh;
239 	return qpnp_tm_write(chip, QPNP_TM_REG_SHUTDOWN_CTRL1, reg);
244 	struct qpnp_tm_chip *chip = data;
248 	trip_points = of_thermal_get_trip_points(chip->tz_dev);
255 	mutex_lock(&chip->lock);
256 	ret = qpnp_tm_update_critical_trip_temp(chip, temp);
257 	mutex_unlock(&chip->lock);
269 	struct qpnp_tm_chip *chip = data;
271 	thermal_zone_device_update(chip->tz_dev, THERMAL_EVENT_UNSPECIFIED);
276 static int qpnp_tm_get_critical_trip_temp(struct qpnp_tm_chip *chip)
282 	ntrips = of_thermal_get_ntrips(chip->tz_dev);
286 	trips = of_thermal_get_trip_points(chip->tz_dev);
291 		if (of_thermal_is_trip_valid(chip->tz_dev, i) &&
304 static int qpnp_tm_init(struct qpnp_tm_chip *chip)
311 	mutex_lock(&chip->lock);
313 	ret = qpnp_tm_read(chip, QPNP_TM_REG_SHUTDOWN_CTRL1, &reg);
317 	chip->thresh = reg & SHUTDOWN_CTRL1_THRESHOLD_MASK;
318 	chip->temp = DEFAULT_TEMP;
320 	ret = qpnp_tm_get_temp_stage(chip);
323 	chip->stage = ret;
325 	stage = chip->subtype == QPNP_TM_SUBTYPE_GEN1
326 		? chip->stage : alarm_state_map[chip->stage];
329 		chip->temp = chip->thresh * TEMP_THRESH_STEP +
333 	crit_temp = qpnp_tm_get_critical_trip_temp(chip);
334 	ret = qpnp_tm_update_critical_trip_temp(chip, crit_temp);
340 	ret = qpnp_tm_write(chip, QPNP_TM_REG_ALARM_CTRL, reg);
342 	chip->initialized = true;
345 	mutex_unlock(&chip->lock);
351 	struct qpnp_tm_chip *chip;
359 	chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL);
360 	if (!chip)
363 	dev_set_drvdata(&pdev->dev, chip);
364 	chip->dev = &pdev->dev;
366 	mutex_init(&chip->lock);
368 	chip->map = dev_get_regmap(pdev->dev.parent, NULL);
369 	if (!chip->map)
381 	chip->adc = devm_iio_channel_get(&pdev->dev, "thermal");
382 	if (IS_ERR(chip->adc)) {
383 		ret = PTR_ERR(chip->adc);
384 		chip->adc = NULL;
389 	chip->base = res;
391 	ret = qpnp_tm_read(chip, QPNP_TM_REG_TYPE, &type);
397 	ret = qpnp_tm_read(chip, QPNP_TM_REG_SUBTYPE, &subtype);
410 	chip->subtype = subtype;
417 	chip->tz_dev = devm_thermal_zone_of_sensor_register(
418 		&pdev->dev, 0, chip, &qpnp_tm_sensor_ops);
419 	if (IS_ERR(chip->tz_dev)) {
421 		return PTR_ERR(chip->tz_dev);
424 	ret = qpnp_tm_init(chip);
431 					IRQF_ONESHOT, node->name, chip);
435 	thermal_zone_device_update(chip->tz_dev, THERMAL_EVENT_UNSPECIFIED);