drivers/regulator/tps62360-regulator.c

48 /* tps 62360 chip information */
81 static bool find_voltage_set_register(struct tps62360_chip *tps,
86 	int new_vset_reg = tps->lru_index[3];
90 		if (tps->curr_vset_vsel[tps->lru_index[i]] == req_vsel) {
91 			new_vset_reg = tps->lru_index[i];
100 		tps->lru_index[i] = tps->lru_index[i - 1];
102 	tps->lru_index[0] = new_vset_reg;
109 	struct tps62360_chip *tps = rdev_get_drvdata(dev);
114 	ret = regmap_read(tps->regmap, REG_VSET0 + tps->curr_vset_id, &data);
116 		dev_err(tps->dev, "%s(): register %d read failed with err %d\n",
117 			__func__, REG_VSET0 + tps->curr_vset_id, ret);
120 	vsel = (int)data & tps->voltage_reg_mask;
127 	struct tps62360_chip *tps = rdev_get_drvdata(dev);
130 	int new_vset_id = tps->curr_vset_id;
136 	if (tps->valid_gpios)
137 		found = find_voltage_set_register(tps, selector, &new_vset_id);
140 		ret = regmap_update_bits(tps->regmap, REG_VSET0 + new_vset_id,
141 				tps->voltage_reg_mask, selector);
143 			dev_err(tps->dev,
148 		tps->curr_vset_id = new_vset_id;
149 		tps->curr_vset_vsel[new_vset_id] = selector;
153 	if (tps->valid_gpios) {
154 		gpiod_set_value_cansleep(tps->vsel0_gpio, new_vset_id & 0x1);
155 		gpiod_set_value_cansleep(tps->vsel1_gpio,
163 	struct tps62360_chip *tps = rdev_get_drvdata(rdev);
182 	if (!tps->valid_gpios) {
183 		ret = regmap_update_bits(tps->regmap,
184 			REG_VSET0 + tps->curr_vset_id, FORCE_PWM_ENABLE, val);
186 			dev_err(tps->dev,
188 				__func__, REG_VSET0 + tps->curr_vset_id, ret);
194 		ret = regmap_update_bits(tps->regmap,
197 			dev_err(tps->dev,
208 	struct tps62360_chip *tps = rdev_get_drvdata(rdev);
212 	ret = regmap_read(tps->regmap, REG_VSET0 + tps->curr_vset_id, &data);
214 		dev_err(tps->dev, "%s(): register %d read failed with err %d\n",
215 			__func__, REG_VSET0 + tps->curr_vset_id, ret);
232 static int tps62360_init_dcdc(struct tps62360_chip *tps,
239 	if (tps->en_internal_pulldn)
240 		ret = regmap_write(tps->regmap, REG_CONTROL, 0xE0);
242 		ret = regmap_write(tps->regmap, REG_CONTROL, 0x0);
244 		dev_err(tps->dev,
251 	ret = regmap_update_bits(tps->regmap, REG_RAMPCTRL, BIT(2), 0);
253 		dev_err(tps->dev,
260 	ret = regmap_read(tps->regmap, REG_RAMPCTRL, &ramp_ctrl);
262 		dev_err(tps->dev,
270 	tps->desc.ramp_delay = DIV_ROUND_UP(32000, BIT(ramp_ctrl));
324 	struct tps62360_chip *tps;
332 	tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
333 	if (!tps)
336 	tps->desc.name = client->name;
337 	tps->desc.id = 0;
338 	tps->desc.ops = &tps62360_dcdc_ops;
339 	tps->desc.type = REGULATOR_VOLTAGE;
340 	tps->desc.owner = THIS_MODULE;
341 	tps->desc.uV_step = 10000;
354 							      &tps->desc);
368 	tps->en_discharge = pdata->en_discharge;
369 	tps->en_internal_pulldn = pdata->en_internal_pulldn;
370 	tps->dev = &client->dev;
375 		tps->desc.min_uV = TPS62360_BASE_VOLTAGE;
376 		tps->voltage_reg_mask = 0x3F;
377 		tps->desc.n_voltages = TPS62360_N_VOLTAGES;
381 		tps->desc.min_uV = TPS62361_BASE_VOLTAGE;
382 		tps->voltage_reg_mask = 0x7F;
383 		tps->desc.n_voltages = TPS62361_N_VOLTAGES;
389 	tps->regmap = devm_regmap_init_i2c(client, &tps62360_regmap_config);
390 	if (IS_ERR(tps->regmap)) {
391 		ret = PTR_ERR(tps->regmap);
397 	i2c_set_clientdata(client, tps);
399 	tps->curr_vset_id = (pdata->vsel1_def_state & 1) * 2 +
401 	tps->lru_index[0] = tps->curr_vset_id;
402 	tps->valid_gpios = false;
406 	tps->vsel0_gpio = devm_gpiod_get_optional(&client->dev, "vsel0", gpio_flags);
407 	if (IS_ERR(tps->vsel0_gpio)) {
410 			__func__, PTR_ERR(tps->vsel0_gpio));
411 		return PTR_ERR(tps->vsel0_gpio);
416 	tps->vsel1_gpio = devm_gpiod_get_optional(&client->dev, "vsel1", gpio_flags);
417 	if (IS_ERR(tps->vsel1_gpio)) {
420 			__func__, PTR_ERR(tps->vsel1_gpio));
421 		return PTR_ERR(tps->vsel1_gpio);
424 	if (tps->vsel0_gpio != NULL && tps->vsel1_gpio != NULL) {
425 		tps->valid_gpios = true;
430 		 * set with the tps->curr_vset_id */
432 			tps->lru_index[i] = i;
433 		tps->lru_index[0] = tps->curr_vset_id;
434 		tps->lru_index[tps->curr_vset_id] = 0;
437 	ret = tps62360_init_dcdc(tps, pdata);
439 		dev_err(tps->dev, "%s(): Init failed with err = %d\n",
446 	config.driver_data = tps;
450 	rdev = devm_regulator_register(&client->dev, &tps->desc, &config);
452 		dev_err(tps->dev,
458 	tps->rdev = rdev;
464 	struct tps62360_chip *tps = i2c_get_clientdata(client);
467 	if (!tps->en_discharge)
471 	st = regmap_update_bits(tps->regmap, REG_RAMPCTRL, BIT(2), BIT(2));
473 		dev_err(tps->dev,