1 // SPDX-License-Identifier: GPL-2.0-only
37 #define RT6160_N_VOUTS		((RT6160_VOUT_MAXUV - RT6160_VOUT_MINUV) / RT6160_VOUT_STPUV + 1)
56 	if (!priv->enable_gpio)  in rt6160_enable()
59 	gpiod_set_value_cansleep(priv->enable_gpio, 1);  in rt6160_enable()
60 	priv->enable_state = true;  in rt6160_enable()
64 	regcache_cache_only(priv->regmap, false);  in rt6160_enable()
65 	return regcache_sync(priv->regmap);  in rt6160_enable()
72 	if (!priv->enable_gpio)  in rt6160_disable()
73 		return -EINVAL;  in rt6160_disable()
76 	regcache_cache_only(priv->regmap, true);  in rt6160_disable()
77 	regcache_mark_dirty(priv->regmap);  in rt6160_disable()
79 	priv->enable_state = false;  in rt6160_disable()
80 	gpiod_set_value_cansleep(priv->enable_gpio, 0);  in rt6160_disable()
89 	return priv->enable_state ? 1 : 0;  in rt6160_is_enabled()
105 		dev_err(&rdev->dev, "mode not supported\n");  in rt6160_set_mode()
106 		return -EINVAL;  in rt6160_set_mode()
132 	int vsel;  in rt6160_set_suspend_voltage()  local
134 	vsel = regulator_map_voltage_linear(rdev, uV, uV);  in rt6160_set_suspend_voltage()
135 	if (vsel < 0)  in rt6160_set_suspend_voltage()
136 		return vsel;  in rt6160_set_suspend_voltage()
138 	if (rdev->desc->vsel_reg == RT6160_REG_VSELL)  in rt6160_set_suspend_voltage()
144 				  RT6160_VSEL_MASK, vsel);  in rt6160_set_suspend_voltage()
236 	priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL);  in rt6160_probe()
238 		return -ENOMEM;  in rt6160_probe()
241 		device_property_present(&i2c->dev, "richtek,vsel-active-low");  in rt6160_probe()
243 	priv->enable_gpio = devm_gpiod_get_optional(&i2c->dev, "enable", GPIOD_OUT_HIGH);  in rt6160_probe()
244 	if (IS_ERR(priv->enable_gpio)) {  in rt6160_probe()
245 		dev_err(&i2c->dev, "Failed to get 'enable' gpio\n");  in rt6160_probe()
246 		return PTR_ERR(priv->enable_gpio);  in rt6160_probe()
248 	priv->enable_state = true;  in rt6160_probe()
252 	priv->regmap = devm_regmap_init_i2c(i2c, &rt6160_regmap_config);  in rt6160_probe()
253 	if (IS_ERR(priv->regmap)) {  in rt6160_probe()
254 		ret = PTR_ERR(priv->regmap);  in rt6160_probe()
255 		dev_err(&i2c->dev, "Failed to init regmap (%d)\n", ret);  in rt6160_probe()
259 	ret = regmap_read(priv->regmap, RT6160_REG_DEVID, &devid);  in rt6160_probe()
264 		dev_err(&i2c->dev, "VID not correct [0x%02x]\n", devid);  in rt6160_probe()
265 		return -ENODEV;  in rt6160_probe()
268 	priv->desc.name = "rt6160-buckboost";  in rt6160_probe()
269 	priv->desc.type = REGULATOR_VOLTAGE;  in rt6160_probe()
270 	priv->desc.owner = THIS_MODULE;  in rt6160_probe()
271 	priv->desc.min_uV = RT6160_VOUT_MINUV;  in rt6160_probe()
272 	priv->desc.uV_step = RT6160_VOUT_STPUV;  in rt6160_probe()
274 		priv->desc.vsel_reg = RT6160_REG_VSELL;  in rt6160_probe()
276 		priv->desc.vsel_reg = RT6160_REG_VSELH;  in rt6160_probe()
277 	priv->desc.vsel_mask = RT6160_VSEL_MASK;  in rt6160_probe()
278 	priv->desc.n_voltages = RT6160_N_VOUTS;  in rt6160_probe()
279 	priv->desc.ramp_reg = RT6160_REG_CNTL;  in rt6160_probe()
280 	priv->desc.ramp_mask = RT6160_RAMPRATE_MASK;  in rt6160_probe()
281 	priv->desc.ramp_delay_table = rt6160_ramp_tables;  in rt6160_probe()
282 	priv->desc.n_ramp_values = ARRAY_SIZE(rt6160_ramp_tables);  in rt6160_probe()
283 	priv->desc.of_map_mode = rt6160_of_map_mode;  in rt6160_probe()
284 	priv->desc.ops = &rt6160_regulator_ops;  in rt6160_probe()
286 	regulator_cfg.dev = &i2c->dev;  in rt6160_probe()
287 	regulator_cfg.of_node = i2c->dev.of_node;  in rt6160_probe()
288 	regulator_cfg.regmap = priv->regmap;  in rt6160_probe()
290 	regulator_cfg.init_data = of_get_regulator_init_data(&i2c->dev, i2c->dev.of_node,  in rt6160_probe()
291 							     &priv->desc);  in rt6160_probe()
293 	rdev = devm_regulator_register(&i2c->dev, &priv->desc, &regulator_cfg);  in rt6160_probe()
295 		dev_err(&i2c->dev, "Failed to register regulator\n");  in rt6160_probe()