summaryrefslogtreecommitdiff
path: root/drivers/clk/clk_sandbox_test.c
blob: e8465dbfad1d99fcbf23f0922071253f23955cdd (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
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2016, NVIDIA CORPORATION.
 */

#include <common.h>
#include <dm.h>
#include <clk.h>
#include <asm/clk.h>

struct sandbox_clk_test {
	struct clk clks[SANDBOX_CLK_TEST_ID_COUNT];
	struct clk_bulk bulk;
};

static const char * const sandbox_clk_test_names[] = {
	[SANDBOX_CLK_TEST_ID_FIXED] = "fixed",
	[SANDBOX_CLK_TEST_ID_SPI] = "spi",
	[SANDBOX_CLK_TEST_ID_I2C] = "i2c",
};

int sandbox_clk_test_get(struct udevice *dev)
{
	struct sandbox_clk_test *sbct = dev_get_priv(dev);
	int i, ret;

	for (i = 0; i < SANDBOX_CLK_TEST_ID_COUNT; i++) {
		ret = clk_get_by_name(dev, sandbox_clk_test_names[i],
				      &sbct->clks[i]);
		if (ret)
			return ret;
	}

	return 0;
}

int sandbox_clk_test_get_bulk(struct udevice *dev)
{
	struct sandbox_clk_test *sbct = dev_get_priv(dev);

	return clk_get_bulk(dev, &sbct->bulk);
}

ulong sandbox_clk_test_get_rate(struct udevice *dev, int id)
{
	struct sandbox_clk_test *sbct = dev_get_priv(dev);

	if (id < 0 || id >= SANDBOX_CLK_TEST_ID_COUNT)
		return -EINVAL;

	return clk_get_rate(&sbct->clks[id]);
}

ulong sandbox_clk_test_set_rate(struct udevice *dev, int id, ulong rate)
{
	struct sandbox_clk_test *sbct = dev_get_priv(dev);

	if (id < 0 || id >= SANDBOX_CLK_TEST_ID_COUNT)
		return -EINVAL;

	return clk_set_rate(&sbct->clks[id], rate);
}

int sandbox_clk_test_enable(struct udevice *dev, int id)
{
	struct sandbox_clk_test *sbct = dev_get_priv(dev);

	if (id < 0 || id >= SANDBOX_CLK_TEST_ID_COUNT)
		return -EINVAL;

	return clk_enable(&sbct->clks[id]);
}

int sandbox_clk_test_enable_bulk(struct udevice *dev)
{
	struct sandbox_clk_test *sbct = dev_get_priv(dev);

	return clk_enable_bulk(&sbct->bulk);
}

int sandbox_clk_test_disable(struct udevice *dev, int id)
{
	struct sandbox_clk_test *sbct = dev_get_priv(dev);

	if (id < 0 || id >= SANDBOX_CLK_TEST_ID_COUNT)
		return -EINVAL;

	return clk_disable(&sbct->clks[id]);
}

int sandbox_clk_test_disable_bulk(struct udevice *dev)
{
	struct sandbox_clk_test *sbct = dev_get_priv(dev);

	return clk_disable_bulk(&sbct->bulk);
}

int sandbox_clk_test_free(struct udevice *dev)
{
	struct sandbox_clk_test *sbct = dev_get_priv(dev);
	int i, ret;

	for (i = 0; i < SANDBOX_CLK_TEST_ID_COUNT; i++) {
		ret = clk_free(&sbct->clks[i]);
		if (ret)
			return ret;
	}

	return 0;
}

int sandbox_clk_test_release_bulk(struct udevice *dev)
{
	struct sandbox_clk_test *sbct = dev_get_priv(dev);

	return clk_release_bulk(&sbct->bulk);
}

int sandbox_clk_test_valid(struct udevice *dev)
{
	struct sandbox_clk_test *sbct = dev_get_priv(dev);
	int i;

	for (i = 0; i < SANDBOX_CLK_TEST_ID_COUNT; i++) {
		if (!clk_valid(&sbct->clks[i]))
			return -EINVAL;
	}

	return 0;
}

static const struct udevice_id sandbox_clk_test_ids[] = {
	{ .compatible = "sandbox,clk-test" },
	{ }
};

U_BOOT_DRIVER(sandbox_clk_test) = {
	.name = "sandbox_clk_test",
	.id = UCLASS_MISC,
	.of_match = sandbox_clk_test_ids,
	.priv_auto_alloc_size = sizeof(struct sandbox_clk_test),
};