183d290c5STom Rini // SPDX-License-Identifier: GPL-2.0+
21a5a05daSJaehoon Chung /*
31a5a05daSJaehoon Chung * Copyright (C) 2016 Samsung Electronics
41a5a05daSJaehoon Chung * Jaehoon Chung <jh80.chung@samsung.com>
51a5a05daSJaehoon Chung */
61a5a05daSJaehoon Chung
71a5a05daSJaehoon Chung #include <common.h>
81a5a05daSJaehoon Chung #include <dm.h>
91a5a05daSJaehoon Chung #include <i2c.h>
101a5a05daSJaehoon Chung #include <power/pmic.h>
111a5a05daSJaehoon Chung #include <power/max8997_pmic.h>
121a5a05daSJaehoon Chung #include <errno.h>
131a5a05daSJaehoon Chung
max8997_reg_count(struct udevice * dev)141a5a05daSJaehoon Chung static int max8997_reg_count(struct udevice *dev)
151a5a05daSJaehoon Chung {
161a5a05daSJaehoon Chung return PMIC_NUM_OF_REGS;
171a5a05daSJaehoon Chung }
181a5a05daSJaehoon Chung
max8997_write(struct udevice * dev,uint reg,const uint8_t * buff,int len)191a5a05daSJaehoon Chung static int max8997_write(struct udevice *dev, uint reg, const uint8_t *buff,
201a5a05daSJaehoon Chung int len)
211a5a05daSJaehoon Chung {
221a5a05daSJaehoon Chung int ret;
231a5a05daSJaehoon Chung
241a5a05daSJaehoon Chung ret = dm_i2c_write(dev, reg, buff, len);
251a5a05daSJaehoon Chung if (ret)
26*c83c436dSSimon Glass pr_err("write error to device: %p register: %#x!\n", dev, reg);
271a5a05daSJaehoon Chung
281a5a05daSJaehoon Chung return ret;
291a5a05daSJaehoon Chung }
301a5a05daSJaehoon Chung
max8997_read(struct udevice * dev,uint reg,uint8_t * buff,int len)311a5a05daSJaehoon Chung static int max8997_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
321a5a05daSJaehoon Chung {
331a5a05daSJaehoon Chung int ret;
341a5a05daSJaehoon Chung
351a5a05daSJaehoon Chung ret = dm_i2c_read(dev, reg, buff, len);
361a5a05daSJaehoon Chung if (ret)
37*c83c436dSSimon Glass pr_err("read error from device: %p register: %#x!\n", dev, reg);
381a5a05daSJaehoon Chung
391a5a05daSJaehoon Chung return ret;
401a5a05daSJaehoon Chung }
411a5a05daSJaehoon Chung
421a5a05daSJaehoon Chung static struct dm_pmic_ops max8997_ops = {
431a5a05daSJaehoon Chung .reg_count = max8997_reg_count,
441a5a05daSJaehoon Chung .read = max8997_read,
451a5a05daSJaehoon Chung .write = max8997_write,
461a5a05daSJaehoon Chung };
471a5a05daSJaehoon Chung
481a5a05daSJaehoon Chung static const struct udevice_id max8997_ids[] = {
491a5a05daSJaehoon Chung { .compatible = "maxim,max8997" },
501a5a05daSJaehoon Chung { },
511a5a05daSJaehoon Chung };
521a5a05daSJaehoon Chung
531a5a05daSJaehoon Chung U_BOOT_DRIVER(pmic_max8997) = {
541a5a05daSJaehoon Chung .name = "max8997_pmic",
551a5a05daSJaehoon Chung .id = UCLASS_PMIC,
561a5a05daSJaehoon Chung .of_match = max8997_ids,
571a5a05daSJaehoon Chung .ops = &max8997_ops,
581a5a05daSJaehoon Chung };
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