// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (C) 2015 Samsung Electronics * Przemyslaw Marczak <p.marczak@samsung.com> */ #include <common.h> #include <fdtdec.h> #include <errno.h> #include <dm.h> #include <i2c.h> #include <power/pmic.h> #include <power/regulator.h> #include <power/sandbox_pmic.h> static const struct pmic_child_info pmic_children_info[] = { { .prefix = SANDBOX_OF_LDO_PREFIX, .driver = SANDBOX_LDO_DRIVER }, { .prefix = SANDBOX_OF_BUCK_PREFIX, .driver = SANDBOX_BUCK_DRIVER }, { }, }; static int sandbox_pmic_reg_count(struct udevice *dev) { return SANDBOX_PMIC_REG_COUNT; } static int sandbox_pmic_write(struct udevice *dev, uint reg, const uint8_t *buff, int len) { if (dm_i2c_write(dev, reg, buff, len)) { pr_err("write error to device: %p register: %#x!", dev, reg); return -EIO; } return 0; } static int sandbox_pmic_read(struct udevice *dev, uint reg, uint8_t *buff, int len) { if (dm_i2c_read(dev, reg, buff, len)) { pr_err("read error from device: %p register: %#x!", dev, reg); return -EIO; } return 0; } static int sandbox_pmic_bind(struct udevice *dev) { if (!pmic_bind_children(dev, dev_ofnode(dev), pmic_children_info)) pr_err("%s:%d PMIC: %s - no child found!", __func__, __LINE__, dev->name); /* Always return success for this device - allows for PMIC I/O */ return 0; } static struct dm_pmic_ops sandbox_pmic_ops = { .reg_count = sandbox_pmic_reg_count, .read = sandbox_pmic_read, .write = sandbox_pmic_write, }; static const struct udevice_id sandbox_pmic_ids[] = { { .compatible = "sandbox,pmic" }, { } }; U_BOOT_DRIVER(sandbox_pmic) = { .name = "sandbox_pmic", .id = UCLASS_PMIC, .of_match = sandbox_pmic_ids, .bind = sandbox_pmic_bind, .ops = &sandbox_pmic_ops, };