summaryrefslogtreecommitdiff
path: root/drivers/phy/sandbox-phy.c
blob: 84ff5c6275b523900d838d58f7aaa6b6bd6896e9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
 * Written by Jean-Jacques Hiblot  <jjhiblot@ti.com>
 */

#include <common.h>
#include <dm.h>
#include <generic-phy.h>

struct sandbox_phy_priv {
	bool initialized;
	bool on;
	bool broken;
};

static int sandbox_phy_power_on(struct phy *phy)
{
	struct sandbox_phy_priv *priv = dev_get_priv(phy->dev);

	if (!priv->initialized)
		return -EIO;

	if (priv->broken)
		return -EIO;

	priv->on = true;

	return 0;
}

static int sandbox_phy_power_off(struct phy *phy)
{
	struct sandbox_phy_priv *priv = dev_get_priv(phy->dev);

	if (!priv->initialized)
		return -EIO;

	if (priv->broken)
		return -EIO;

	/*
	 * for validation purpose, let's says that power off
	 * works only for PHY 0
	 */
	if (phy->id)
		return -EIO;

	priv->on = false;

	return 0;
}

static int sandbox_phy_init(struct phy *phy)
{
	struct sandbox_phy_priv *priv = dev_get_priv(phy->dev);

	priv->initialized = true;
	priv->on = true;

	return 0;
}

static int sandbox_phy_exit(struct phy *phy)
{
	struct sandbox_phy_priv *priv = dev_get_priv(phy->dev);

	priv->initialized = false;
	priv->on = false;

	return 0;
}

static int sandbox_phy_probe(struct udevice *dev)
{
	struct sandbox_phy_priv *priv = dev_get_priv(dev);

	priv->initialized = false;
	priv->on = false;
	priv->broken = dev_read_bool(dev, "broken");

	return 0;
}

static struct phy_ops sandbox_phy_ops = {
	.power_on = sandbox_phy_power_on,
	.power_off = sandbox_phy_power_off,
	.init = sandbox_phy_init,
	.exit = sandbox_phy_exit,
};

static const struct udevice_id sandbox_phy_ids[] = {
	{ .compatible = "sandbox,phy" },
	{ }
};

U_BOOT_DRIVER(phy_sandbox) = {
	.name		= "phy_sandbox",
	.id		= UCLASS_PHY,
	.of_match	= sandbox_phy_ids,
	.ops		= &sandbox_phy_ops,
	.probe		= sandbox_phy_probe,
	.priv_auto_alloc_size = sizeof(struct sandbox_phy_priv),
};