Contributors: 5
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Dong Aisheng |
255 |
42.64% |
2 |
33.33% |
| Lars-Peter Clausen |
236 |
39.46% |
1 |
16.67% |
| Kuninori Morimoto |
105 |
17.56% |
1 |
16.67% |
| Stephen Boyd |
1 |
0.17% |
1 |
16.67% |
| Mark Brown |
1 |
0.17% |
1 |
16.67% |
| Total |
598 |
|
6 |
|
// SPDX-License-Identifier: GPL-2.0
#include <linux/clk.h>
#include <linux/device.h>
#include <linux/export.h>
#include <linux/gfp.h>
static void devm_clk_release(struct device *dev, void *res)
{
clk_put(*(struct clk **)res);
}
struct clk *devm_clk_get(struct device *dev, const char *id)
{
struct clk **ptr, *clk;
ptr = devres_alloc(devm_clk_release, sizeof(*ptr), GFP_KERNEL);
if (!ptr)
return ERR_PTR(-ENOMEM);
clk = clk_get(dev, id);
if (!IS_ERR(clk)) {
*ptr = clk;
devres_add(dev, ptr);
} else {
devres_free(ptr);
}
return clk;
}
EXPORT_SYMBOL(devm_clk_get);
struct clk_bulk_devres {
struct clk_bulk_data *clks;
int num_clks;
};
static void devm_clk_bulk_release(struct device *dev, void *res)
{
struct clk_bulk_devres *devres = res;
clk_bulk_put(devres->num_clks, devres->clks);
}
int __must_check devm_clk_bulk_get(struct device *dev, int num_clks,
struct clk_bulk_data *clks)
{
struct clk_bulk_devres *devres;
int ret;
devres = devres_alloc(devm_clk_bulk_release,
sizeof(*devres), GFP_KERNEL);
if (!devres)
return -ENOMEM;
ret = clk_bulk_get(dev, num_clks, clks);
if (!ret) {
devres->clks = clks;
devres->num_clks = num_clks;
devres_add(dev, devres);
} else {
devres_free(devres);
}
return ret;
}
EXPORT_SYMBOL_GPL(devm_clk_bulk_get);
int __must_check devm_clk_bulk_get_all(struct device *dev,
struct clk_bulk_data **clks)
{
struct clk_bulk_devres *devres;
int ret;
devres = devres_alloc(devm_clk_bulk_release,
sizeof(*devres), GFP_KERNEL);
if (!devres)
return -ENOMEM;
ret = clk_bulk_get_all(dev, &devres->clks);
if (ret > 0) {
*clks = devres->clks;
devres->num_clks = ret;
devres_add(dev, devres);
} else {
devres_free(devres);
}
return ret;
}
EXPORT_SYMBOL_GPL(devm_clk_bulk_get_all);
static int devm_clk_match(struct device *dev, void *res, void *data)
{
struct clk **c = res;
if (!c || !*c) {
WARN_ON(!c || !*c);
return 0;
}
return *c == data;
}
void devm_clk_put(struct device *dev, struct clk *clk)
{
int ret;
ret = devres_release(dev, devm_clk_release, devm_clk_match, clk);
WARN_ON(ret);
}
EXPORT_SYMBOL(devm_clk_put);
struct clk *devm_get_clk_from_child(struct device *dev,
struct device_node *np, const char *con_id)
{
struct clk **ptr, *clk;
ptr = devres_alloc(devm_clk_release, sizeof(*ptr), GFP_KERNEL);
if (!ptr)
return ERR_PTR(-ENOMEM);
clk = of_clk_get_by_name(np, con_id);
if (!IS_ERR(clk)) {
*ptr = clk;
devres_add(dev, ptr);
} else {
devres_free(ptr);
}
return clk;
}
EXPORT_SYMBOL(devm_get_clk_from_child);