Contributors: 10
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Neil Armstrong |
157 |
44.99% |
3 |
20.00% |
| Yixun Lan |
111 |
31.81% |
1 |
6.67% |
| Jerome Brunet |
49 |
14.04% |
4 |
26.67% |
| Liang He |
13 |
3.72% |
1 |
6.67% |
| Kevin Hilman |
11 |
3.15% |
1 |
6.67% |
| Yu Tu |
3 |
0.86% |
1 |
6.67% |
| Peter Zijlstra |
2 |
0.57% |
1 |
6.67% |
| Rob Herring |
1 |
0.29% |
1 |
6.67% |
| Wei Yongjun |
1 |
0.29% |
1 |
6.67% |
| Julia Lawall |
1 |
0.29% |
1 |
6.67% |
| Total |
349 |
|
15 |
|
// SPDX-License-Identifier: GPL-2.0+
/*
* Amlogic Meson-AXG Clock Controller Driver
*
* Copyright (c) 2016 BayLibre, SAS.
* Author: Neil Armstrong <narmstrong@baylibre.com>
*
* Copyright (c) 2018 Amlogic, inc.
* Author: Qiufang Dai <qiufang.dai@amlogic.com>
* Author: Yixun Lan <yixun.lan@amlogic.com>
*/
#include <linux/platform_device.h>
#include <linux/reset-controller.h>
#include <linux/mfd/syscon.h>
#include <linux/of.h>
#include <linux/module.h>
#include <linux/slab.h>
#include "meson-aoclk.h"
#include "clk-regmap.h"
static int meson_aoclk_do_reset(struct reset_controller_dev *rcdev,
unsigned long id)
{
struct meson_aoclk_reset_controller *rstc =
container_of(rcdev, struct meson_aoclk_reset_controller, reset);
return regmap_write(rstc->regmap, rstc->data->reset_reg,
BIT(rstc->data->reset[id]));
}
static const struct reset_control_ops meson_aoclk_reset_ops = {
.reset = meson_aoclk_do_reset,
};
int meson_aoclkc_probe(struct platform_device *pdev)
{
struct meson_aoclk_reset_controller *rstc;
const struct meson_clkc_data *clkc_data;
const struct meson_aoclk_data *data;
struct device *dev = &pdev->dev;
struct device_node *np;
struct regmap *regmap;
int ret;
clkc_data = of_device_get_match_data(dev);
if (!clkc_data)
return -EINVAL;
ret = meson_clkc_syscon_probe(pdev);
if (ret)
return ret;
data = container_of(clkc_data, struct meson_aoclk_data,
clkc_data);
rstc = devm_kzalloc(dev, sizeof(*rstc), GFP_KERNEL);
if (!rstc)
return -ENOMEM;
np = of_get_parent(dev->of_node);
regmap = syscon_node_to_regmap(np);
of_node_put(np);
if (IS_ERR(regmap)) {
dev_err(dev, "failed to get regmap\n");
return PTR_ERR(regmap);
}
/* Reset Controller */
rstc->data = data;
rstc->regmap = regmap;
rstc->reset.ops = &meson_aoclk_reset_ops;
rstc->reset.nr_resets = data->num_reset;
rstc->reset.of_node = dev->of_node;
ret = devm_reset_controller_register(dev, &rstc->reset);
if (ret) {
dev_err(dev, "failed to register reset controller\n");
return ret;
}
return 0;
}
EXPORT_SYMBOL_NS_GPL(meson_aoclkc_probe, "CLK_MESON");
MODULE_DESCRIPTION("Amlogic Always-ON Clock Controller helpers");
MODULE_LICENSE("GPL");
MODULE_IMPORT_NS("CLK_MESON");