regmap = devm_regmap_init_i2c(client, &sp7731e_regmap_config); if (IS_ERR(regmap)) return PTR_ERR(regmap);
static struct regulator_init_data sp7731e_buck1_init = /* consumer supplies, constraints, etc. */ ;
static const struct of_device_id sp7731e_of_match[] = .compatible = "vendor,sp7731e", , ; MODULE_DEVICE_TABLE(of, sp7731e_of_match);
/* Optional: read chip ID register to verify */ /* ret = regmap_read(regmap, CHIP_ID_REG, &val); */
/* Save driver data if needed */ i2c_set_clientdata(client, regmap); return 0;