160 static int lp872x_read_byte(struct lp872x *lp, u8 addr, u8 *data)  in lp872x_read_byte()  argument
165 	ret = regmap_read(lp->regmap, addr, &val);  in lp872x_read_byte()
167 		dev_err(lp->dev, "failed to read 0x%.2x\n", addr);  in lp872x_read_byte()
175 static inline int lp872x_write_byte(struct lp872x *lp, u8 addr, u8 data)  in lp872x_write_byte()  argument
177 	return regmap_write(lp->regmap, addr, data);  in lp872x_write_byte()
180 static inline int lp872x_update_bits(struct lp872x *lp, u8 addr,  in lp872x_update_bits()  argument
183 	return regmap_update_bits(lp->regmap, addr, mask, data);  in lp872x_update_bits()
186 static int lp872x_get_timestep_usec(struct lp872x *lp)  in lp872x_get_timestep_usec()  argument
188 	enum lp872x_id chip = lp->chipid;  in lp872x_get_timestep_usec()
211 	ret = lp872x_read_byte(lp, LP872X_GENERAL_CFG, &val);  in lp872x_get_timestep_usec()
224 	struct lp872x *lp = rdev_get_drvdata(rdev);  in lp872x_regulator_enable_time()  local
226 	int time_step_us = lp872x_get_timestep_usec(lp);  in lp872x_regulator_enable_time()
247 	ret = lp872x_read_byte(lp, addr, &val);  in lp872x_regulator_enable_time()
256 static void lp872x_set_dvs(struct lp872x *lp, enum lp872x_dvs_sel dvs_sel,  in lp872x_set_dvs()  argument
263 	lp->dvs_pin = state;  in lp872x_set_dvs()
266 static u8 lp872x_select_buck_vout_addr(struct lp872x *lp,  in lp872x_select_buck_vout_addr()  argument
271 	if (lp872x_read_byte(lp, LP872X_GENERAL_CFG, &val))  in lp872x_select_buck_vout_addr()
277 			addr = (lp->dvs_pin == DVS_HIGH) ?  in lp872x_select_buck_vout_addr()
280 			if (lp872x_read_byte(lp, LP8720_ENABLE, &val))  in lp872x_select_buck_vout_addr()
291 			addr = (lp->dvs_pin == DVS_HIGH) ?  in lp872x_select_buck_vout_addr()
323 	struct lp872x *lp = rdev_get_drvdata(rdev);  in lp872x_buck_set_voltage_sel()  local
326 	struct lp872x_dvs *dvs = lp->pdata ? lp->pdata->dvs : NULL;  in lp872x_buck_set_voltage_sel()
329 		lp872x_set_dvs(lp, dvs->vsel, dvs->gpio);  in lp872x_buck_set_voltage_sel()
331 	addr = lp872x_select_buck_vout_addr(lp, buck);  in lp872x_buck_set_voltage_sel()
335 	return lp872x_update_bits(lp, addr, mask, selector);  in lp872x_buck_set_voltage_sel()
340 	struct lp872x *lp = rdev_get_drvdata(rdev);  in lp872x_buck_get_voltage_sel()  local
345 	addr = lp872x_select_buck_vout_addr(lp, buck);  in lp872x_buck_get_voltage_sel()
349 	ret = lp872x_read_byte(lp, addr, &val);  in lp872x_buck_get_voltage_sel()
359 	struct lp872x *lp = rdev_get_drvdata(rdev);  in lp8725_buck_set_current_limit()  local
378 			return lp872x_update_bits(lp, addr,  in lp8725_buck_set_current_limit()
388 	struct lp872x *lp = rdev_get_drvdata(rdev);  in lp8725_buck_get_current_limit()  local
404 	ret = lp872x_read_byte(lp, addr, &val);  in lp8725_buck_get_current_limit()
416 	struct lp872x *lp = rdev_get_drvdata(rdev);  in lp872x_buck_set_mode()  local
447 	return lp872x_update_bits(lp, addr, mask, val);  in lp872x_buck_set_mode()
452 	struct lp872x *lp = rdev_get_drvdata(rdev);  in lp872x_buck_get_mode()  local
474 	ret = lp872x_read_byte(lp, addr, &val);  in lp872x_buck_get_mode()
715 static int lp872x_init_dvs(struct lp872x *lp)  in lp872x_init_dvs()  argument
718 	struct lp872x_dvs *dvs = lp->pdata ? lp->pdata->dvs : NULL;  in lp872x_init_dvs()
728 		dev_warn(lp->dev, "invalid gpio: %d\n", gpio);  in lp872x_init_dvs()
733 	ret = devm_gpio_request_one(lp->dev, gpio, pinstate, "LP872X DVS");  in lp872x_init_dvs()
735 		dev_err(lp->dev, "gpio request err: %d\n", ret);  in lp872x_init_dvs()
739 	lp->dvs_pin = pinstate;  in lp872x_init_dvs()
740 	lp->dvs_gpio = gpio;  in lp872x_init_dvs()
745 	return lp872x_update_bits(lp, LP872X_GENERAL_CFG, mask[lp->chipid],  in lp872x_init_dvs()
746 				default_dvs_mode[lp->chipid]);  in lp872x_init_dvs()
749 static int lp872x_config(struct lp872x *lp)  in lp872x_config()  argument
751 	struct lp872x_platform_data *pdata = lp->pdata;  in lp872x_config()
757 	ret = lp872x_write_byte(lp, LP872X_GENERAL_CFG, pdata->general_config);  in lp872x_config()
762 	return lp872x_init_dvs(lp);  in lp872x_config()
766 *lp872x_find_regulator_init_data(int id, struct lp872x *lp)  in lp872x_find_regulator_init_data()  argument
768 	struct lp872x_platform_data *pdata = lp->pdata;  in lp872x_find_regulator_init_data()
774 	for (i = 0; i < lp->num_regulators; i++) {  in lp872x_find_regulator_init_data()
782 static int lp872x_regulator_register(struct lp872x *lp)  in lp872x_regulator_register()  argument
789 	for (i = 0; i < lp->num_regulators; i++) {  in lp872x_regulator_register()
790 		desc = (lp->chipid == LP8720) ? &lp8720_regulator_desc[i] :  in lp872x_regulator_register()
793 		cfg.dev = lp->dev;  in lp872x_regulator_register()
794 		cfg.init_data = lp872x_find_regulator_init_data(desc->id, lp);  in lp872x_regulator_register()
795 		cfg.driver_data = lp;  in lp872x_regulator_register()
796 		cfg.regmap = lp->regmap;  in lp872x_regulator_register()
798 		rdev = devm_regulator_register(lp->dev, desc, &cfg);  in lp872x_regulator_register()
800 			dev_err(lp->dev, "regulator register err");  in lp872x_regulator_register()
905 	struct lp872x *lp;  in lp872x_probe()  local
916 	lp = devm_kzalloc(&cl->dev, sizeof(struct lp872x), GFP_KERNEL);  in lp872x_probe()
917 	if (!lp)  in lp872x_probe()
920 	lp->num_regulators = lp872x_num_regulators[id->driver_data];  in lp872x_probe()
922 	lp->regmap = devm_regmap_init_i2c(cl, &lp872x_regmap_config);  in lp872x_probe()
923 	if (IS_ERR(lp->regmap)) {  in lp872x_probe()
924 		ret = PTR_ERR(lp->regmap);  in lp872x_probe()
929 	lp->dev = &cl->dev;  in lp872x_probe()
930 	lp->pdata = dev_get_platdata(&cl->dev);  in lp872x_probe()
931 	lp->chipid = id->driver_data;  in lp872x_probe()
932 	i2c_set_clientdata(cl, lp);  in lp872x_probe()
934 	ret = lp872x_config(lp);  in lp872x_probe()
938 	return lp872x_regulator_register(lp);  in lp872x_probe()