drivers/mfd/tps65218.c

42  * @tps: Device to write to.
47 int tps65218_reg_write(struct tps65218 *tps, unsigned int reg,
55 		return regmap_write(tps->regmap, reg, val);
58 		ret = regmap_write(tps->regmap, TPS65218_REG_PASSWORD,
63 		return regmap_write(tps->regmap, reg, val);
73  * @tps: Device to write to.
79 static int tps65218_update_bits(struct tps65218 *tps, unsigned int reg,
85 	ret = regmap_read(tps->regmap, reg, &data);
87 		dev_err(tps->dev, "Read from reg 0x%x failed\n", reg);
94 	mutex_lock(&tps->tps_lock);
95 	ret = tps65218_reg_write(tps, reg, data, level);
97 		dev_err(tps->dev, "Write for reg 0x%x failed\n", reg);
98 	mutex_unlock(&tps->tps_lock);
103 int tps65218_set_bits(struct tps65218 *tps, unsigned int reg,
106 	return tps65218_update_bits(tps, reg, mask, val, level);
110 int tps65218_clear_bits(struct tps65218 *tps, unsigned int reg,
113 	return tps65218_update_bits(tps, reg, mask, 0, level);
205 static int tps65218_voltage_set_strict(struct tps65218 *tps)
209 	if (of_property_read_u32(tps->dev->of_node,
215 		dev_err(tps->dev,
220 	tps65218_update_bits(tps, TPS65218_REG_CONFIG1,
227 static int tps65218_voltage_set_uv_hyst(struct tps65218 *tps)
231 	if (of_property_read_u32(tps->dev->of_node,
236 		dev_err(tps->dev,
241 	tps65218_update_bits(tps, TPS65218_REG_CONFIG2,
248 static int tps65218_voltage_set_uvlo(struct tps65218 *tps)
253 	if (of_property_read_u32(tps->dev->of_node,
271 		dev_err(tps->dev,
276 	tps65218_update_bits(tps, TPS65218_REG_CONFIG1,
284 	struct tps65218 *tps;
288 	tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
289 	if (!tps)
292 	i2c_set_clientdata(client, tps);
293 	tps->dev = &client->dev;
294 	tps->irq = client->irq;
295 	tps->regmap = devm_regmap_init_i2c(client, &tps65218_regmap_config);
296 	if (IS_ERR(tps->regmap)) {
297 		ret = PTR_ERR(tps->regmap);
298 		dev_err(tps->dev, "Failed to allocate register map: %d\n",
303 	mutex_init(&tps->tps_lock);
305 	ret = devm_regmap_add_irq_chip(&client->dev, tps->regmap, tps->irq,
307 				       &tps->irq_data);
311 	ret = regmap_read(tps->regmap, TPS65218_REG_CHIPID, &chipid);
313 		dev_err(tps->dev, "Failed to read chipid: %d\n", ret);
317 	tps->rev = chipid & TPS65218_CHIPID_REV_MASK;
319 	ret = tps65218_voltage_set_strict(tps);
323 	ret = tps65218_voltage_set_uvlo(tps);
327 	ret = tps65218_voltage_set_uv_hyst(tps);
331 	ret = mfd_add_devices(tps->dev, PLATFORM_DEVID_AUTO, tps65218_cells,
333 			      regmap_irq_get_domain(tps->irq_data));