1// SPDX-License-Identifier: GPL-2.0+
2/*
3 *  Copyright(C) 2023 Svyatoslav Ryhel <clamor95@gmail.com>
4 */
5
6#include <dm.h>
7#include <i2c.h>
8#include <errno.h>
9#include <sysreset.h>
10#include <power/pmic.h>
11#include <power/tps65910_pmic.h>
12
13static int tps65910_sysreset_request(struct udevice *dev,
14				     enum sysreset_t type)
15{
16	int val;
17
18	val = pmic_reg_read(dev->parent, TPS65910_REG_DEVICE_CTRL);
19	if (val < 0)
20		return val;
21
22	/* define power-off to be sequential */
23	val |= PWR_OFF_SEQ;
24	pmic_reg_write(dev->parent, TPS65910_REG_DEVICE_CTRL, val);
25
26	val &= ~DEV_ON;
27
28	switch (type) {
29	case SYSRESET_POWER:
30		/* TPS65910: DEV_OFF_RST > DEVICE_CTRL */
31		pmic_reg_write(dev->parent, TPS65910_REG_DEVICE_CTRL,
32			       val | DEV_OFF_RST);
33		break;
34	case SYSRESET_POWER_OFF:
35		/* TPS65910: DEV_OFF > DEVICE_CTRL */
36		pmic_reg_write(dev->parent, TPS65910_REG_DEVICE_CTRL,
37			       val | DEV_OFF);
38		break;
39	default:
40		return -EPROTONOSUPPORT;
41	}
42
43	return -EINPROGRESS;
44}
45
46static struct sysreset_ops tps65910_sysreset = {
47	.request = tps65910_sysreset_request,
48};
49
50U_BOOT_DRIVER(sysreset_tps65910) = {
51	.id	= UCLASS_SYSRESET,
52	.name	= TPS65910_RST_DRIVER,
53	.ops	= &tps65910_sysreset,
54};
55