// SPDX-License-Identifier: GPL-2.0 /* * Device driver for regulators in HISI PMIC IC * * Copyright (c) 2013 Linaro Ltd. * Copyright (c) 2011 Hisilicon. * Copyright (c) 2020-2021 Huawei Technologies Co., Ltd. */ #include <linux/mfd/core.h> #include <linux/mfd/hi6421-spmi-pmic.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/regmap.h> #include <linux/slab.h> #include <linux/spmi.h> static const struct mfd_cell hi6421v600_devs[] = { { .name = "hi6421v600-irq", }, { .name = "hi6421v600-regulator", }, }; static const struct regmap_config regmap_config = { .reg_bits = 16, .val_bits = BITS_PER_BYTE, .max_register = 0xffff, .fast_io = true }; static int hi6421_spmi_pmic_probe(struct spmi_device *sdev) { struct device *dev = &sdev->dev; int ret; struct hi6421_spmi_pmic *ddata; ddata = devm_kzalloc(dev, sizeof(*ddata), GFP_KERNEL); if (!ddata) return -ENOMEM; ddata->regmap = devm_regmap_init_spmi_ext(sdev, ®map_config); if (IS_ERR(ddata->regmap)) return PTR_ERR(ddata->regmap); ddata->dev = dev; dev_set_drvdata(&sdev->dev, ddata); ret = devm_mfd_add_devices(&sdev->dev, PLATFORM_DEVID_NONE, hi6421v600_devs, ARRAY_SIZE(hi6421v600_devs), NULL, 0, NULL); if (ret < 0) dev_err(dev, "Failed to add child devices: %d\n", ret); return ret; } static const struct of_device_id pmic_spmi_id_table[] = { { .compatible = "hisilicon,hi6421-spmi" }, { } }; MODULE_DEVICE_TABLE(of, pmic_spmi_id_table); static struct spmi_driver hi6421_spmi_pmic_driver = { .driver = { .name = "hi6421-spmi-pmic", .of_match_table = pmic_spmi_id_table, }, .probe = hi6421_spmi_pmic_probe, }; module_spmi_driver(hi6421_spmi_pmic_driver); MODULE_DESCRIPTION("HiSilicon Hi6421v600 SPMI PMIC driver"); MODULE_LICENSE("GPL v2");