// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (C) 2015 Freescale Semiconductor, Inc * Peng Fan <Peng.Fan@freescale.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/pfuze100_pmic.h> #include <power/pfuze3000_pmic.h> static const struct pmic_child_info pmic_children_info[] = { /* sw[x], swbst */ { .prefix = "s", .driver = PFUZE100_REGULATOR_DRIVER }, /* vgen[x], vsnvs, vcc, v33, vcc_sd */ { .prefix = "v", .driver = PFUZE100_REGULATOR_DRIVER }, { }, }; static int pfuze100_reg_count(struct udevice *dev) { return dev->driver_data == PFUZE3000 ? PFUZE3000_NUM_OF_REGS : PFUZE100_NUM_OF_REGS; } static int pfuze100_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 pfuze100_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 pfuze100_bind(struct udevice *dev) { ofnode regulators_node; int children; regulators_node = dev_read_subnode(dev, "regulators"); if (!ofnode_valid(regulators_node)) { debug("%s: %s regulators subnode not found!", __func__, dev->name); return -ENXIO; } debug("%s: '%s' - found regulators subnode\n", __func__, dev->name); children = pmic_bind_children(dev, regulators_node, pmic_children_info); if (!children) debug("%s: %s - no child found\n", __func__, dev->name); /* Always return success for this device */ return 0; } static struct dm_pmic_ops pfuze100_ops = { .reg_count = pfuze100_reg_count, .read = pfuze100_read, .write = pfuze100_write, }; static const struct udevice_id pfuze100_ids[] = { { .compatible = "fsl,pfuze100", .data = PFUZE100, }, { .compatible = "fsl,pfuze200", .data = PFUZE200, }, { .compatible = "fsl,pfuze3000", .data = PFUZE3000, }, { } }; U_BOOT_DRIVER(pmic_pfuze100) = { .name = "pfuze100 pmic", .id = UCLASS_PMIC, .of_match = pfuze100_ids, .bind = pfuze100_bind, .ops = &pfuze100_ops, };