Contributors: 6
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Stephen Boyd |
206 |
77.44% |
1 |
12.50% |
| Konrad Dybcio |
32 |
12.03% |
3 |
37.50% |
| Stephan Gerhold |
17 |
6.39% |
1 |
12.50% |
| Robert Marko |
8 |
3.01% |
1 |
12.50% |
| Thomas Gleixner |
2 |
0.75% |
1 |
12.50% |
| Philipp Zabel |
1 |
0.38% |
1 |
12.50% |
| Total |
266 |
|
8 |
|
// 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)
{
struct qcom_reset_controller *rst = to_qcom_reset_controller(rcdev);
rcdev->ops->assert(rcdev, id);
fsleep(rst->reset_map[id].udelay ?: 1); /* use 1 us as default */
rcdev->ops->deassert(rcdev, id);
return 0;
}
static int qcom_reset_set_assert(struct reset_controller_dev *rcdev,
unsigned long id, bool assert)
{
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 = map->bitmask ? map->bitmask : BIT(map->bit);
regmap_update_bits(rst->regmap, map->reg, mask, assert ? mask : 0);
/* Read back the register to ensure write completion, ignore the value */
regmap_read(rst->regmap, map->reg, &mask);
return 0;
}
static int qcom_reset_assert(struct reset_controller_dev *rcdev, unsigned long id)
{
return qcom_reset_set_assert(rcdev, id, true);
}
static int qcom_reset_deassert(struct reset_controller_dev *rcdev, unsigned long id)
{
return qcom_reset_set_assert(rcdev, id, false);
}
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);