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
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2013, The Linux Foundation. All rights reserved.
*/
#include <linux/bitops.h>
#include <linux/export.h>
#include <linux/regmap.h>
#include <linux/reset-controller.h>
#include <linux/delay.h>
#include "reset.h"
static int qcom_reset(struct reset_controller_dev *rcdev, unsigned long id)
{
rcdev->ops->assert(rcdev, id);
udelay(1);
rcdev->ops->deassert(rcdev, id);
return 0;
}
static int
qcom_reset_assert(struct reset_controller_dev *rcdev, unsigned long id)
{
struct qcom_reset_controller *rst;
const struct qcom_reset_map *map;
u32 mask;
rst = to_qcom_reset_controller(rcdev);
map = &rst->reset_map[id];
mask = BIT(map->bit);
return regmap_update_bits(rst->regmap, map->reg, mask, mask);
}
static int
qcom_reset_deassert(struct reset_controller_dev *rcdev, unsigned long id)
{
struct qcom_reset_controller *rst;
const struct qcom_reset_map *map;
u32 mask;
rst = to_qcom_reset_controller(rcdev);
map = &rst->reset_map[id];
mask = BIT(map->bit);
return regmap_update_bits(rst->regmap, map->reg, mask, 0);
}
const struct reset_control_ops qcom_reset_ops = {
.reset = qcom_reset,
.assert = qcom_reset_assert,
.deassert = qcom_reset_deassert,
};
EXPORT_SYMBOL_GPL(qcom_reset_ops);
|
