1 // SPDX-License-Identifier: GPL-2.0-only
3  * Core driver for TPS61050/61052 boost converters, used for while LED
5  * boost conversion. Additionally it provides a 1-bit GPIO pin (out or in)
9  * Copyright (C) 2011 ST-Ericsson SA
10  * Written on behalf of Linaro for ST-Ericsson
37 	ret = regmap_read(tps6105x->regmap, TPS6105X_REG_0, &regval);  in tps6105x_startup()
42 		dev_info(&tps6105x->client->dev,  in tps6105x_startup()
46 		dev_info(&tps6105x->client->dev,  in tps6105x_startup()
50 		dev_info(&tps6105x->client->dev,  in tps6105x_startup()
54 		dev_info(&tps6105x->client->dev,  in tps6105x_startup()
65  * MFD cells - we always have a GPIO cell and we have one cell
69 	.name = "tps6105x-gpio",
73 	.name = "tps6105x-leds",
77 	.name = "tps6105x-flash",
81 	.name = "tps6105x-regulator",
87 	cell->platform_data = tps6105x;  in tps6105x_add_device()
88 	cell->pdata_size = sizeof(*tps6105x);  in tps6105x_add_device()
90 	return mfd_add_devices(&tps6105x->client->dev,  in tps6105x_add_device()
96 	struct device_node *np = dev->of_node;  in tps6105x_parse_dt()
101 		return ERR_PTR(-EINVAL);  in tps6105x_parse_dt()
104 		return ERR_PTR(-EINVAL);  in tps6105x_parse_dt()
108 		return ERR_PTR(-ENOMEM);  in tps6105x_parse_dt()
109 	pdata->mode = TPS6105X_MODE_SHUTDOWN;  in tps6105x_parse_dt()
111 		if (child->name && !of_node_cmp(child->name, "regulator"))  in tps6105x_parse_dt()
112 			pdata->mode = TPS6105X_MODE_VOLTAGE;  in tps6105x_parse_dt()
113 		else if (child->name && !of_node_cmp(child->name, "led"))  in tps6105x_parse_dt()
114 			pdata->mode = TPS6105X_MODE_TORCH;  in tps6105x_parse_dt()
127 	pdata = dev_get_platdata(&client->dev);  in tps6105x_probe()
129 		pdata = tps6105x_parse_dt(&client->dev);  in tps6105x_probe()
131 		dev_err(&client->dev, "No platform data or DT found");  in tps6105x_probe()
135 	tps6105x = devm_kmalloc(&client->dev, sizeof(*tps6105x), GFP_KERNEL);  in tps6105x_probe()
137 		return -ENOMEM;  in tps6105x_probe()
139 	tps6105x->regmap = devm_regmap_init_i2c(client, &tps6105x_regmap_config);  in tps6105x_probe()
140 	if (IS_ERR(tps6105x->regmap))  in tps6105x_probe()
141 		return PTR_ERR(tps6105x->regmap);  in tps6105x_probe()
144 	tps6105x->client = client;  in tps6105x_probe()
145 	tps6105x->pdata = pdata;  in tps6105x_probe()
149 		dev_err(&client->dev, "chip initialization failed\n");  in tps6105x_probe()
157 	switch (pdata->mode) {  in tps6105x_probe()
159 		dev_info(&client->dev,  in tps6105x_probe()
172 		dev_warn(&client->dev, "invalid mode: %d\n", pdata->mode);  in tps6105x_probe()
177 		mfd_remove_devices(&client->dev);  in tps6105x_probe()
186 	mfd_remove_devices(&client->dev);  in tps6105x_remove()
189 	regmap_update_bits(tps6105x->regmap, TPS6105X_REG_0,  in tps6105x_remove()
231 MODULE_DESCRIPTION("TPS6105x White LED Boost Converter Driver");