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interconnect: add device managed bulk API 

Add device managed bulk API to simplify driver.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/20220703091132.1412063-4-peng.fan@oss.nxp.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
This commit is contained in:
Peng Fan 2022-07-03 17:11:25 +08:00 committed by Georgi Djakov
parent e2a4a0eeb0
commit 2fcfa72fc1
2 changed files with 49 additions and 0 deletions
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42
drivers/interconnect/bulk.c
View File

@ -115,3 +115,45 @@ void icc_bulk_disable(int num_paths, const struct icc_bulk_data *paths)
icc_disable(paths[num_paths].path);
}
EXPORT_SYMBOL_GPL(icc_bulk_disable);
struct icc_bulk_devres {
struct icc_bulk_data *paths;
int num_paths;
};
static void devm_icc_bulk_release(struct device *dev, void *res)
{
struct icc_bulk_devres *devres = res;
icc_bulk_put(devres->num_paths, devres->paths);
}
/**
* devm_of_icc_bulk_get() - resource managed of_icc_bulk_get
* @dev: the device requesting the path
* @num_paths: the number of icc_bulk_data
* @paths: the table with the paths we want to get
*
* Returns 0 on success or negative errno otherwise.
*/
int devm_of_icc_bulk_get(struct device *dev, int num_paths, struct icc_bulk_data *paths)
{
struct icc_bulk_devres *devres;
int ret;
devres = devres_alloc(devm_icc_bulk_release, sizeof(*devres), GFP_KERNEL);
if (!devres)
return -ENOMEM;
ret = of_icc_bulk_get(dev, num_paths, paths);
if (!ret) {
devres->paths = paths;
devres->num_paths = num_paths;
devres_add(dev, devres);
} else {
devres_free(devres);
}
return ret;
}
EXPORT_SYMBOL_GPL(devm_of_icc_bulk_get);

7
include/linux/interconnect.h
View File

@ -44,6 +44,7 @@ struct icc_path *icc_get(struct device *dev, const int src_id,
const int dst_id);
struct icc_path *of_icc_get(struct device *dev, const char *name);
struct icc_path *devm_of_icc_get(struct device *dev, const char *name);
int devm_of_icc_bulk_get(struct device *dev, int num_paths, struct icc_bulk_data *paths);
struct icc_path *of_icc_get_by_index(struct device *dev, int idx);
void icc_put(struct icc_path *path);
int icc_enable(struct icc_path *path);
@ -116,6 +117,12 @@ static inline int of_icc_bulk_get(struct device *dev, int num_paths, struct icc_
return 0;
}
static inline int devm_of_icc_bulk_get(struct device *dev, int num_paths,
struct icc_bulk_data *paths)
{
return 0;
}
static inline void icc_bulk_put(int num_paths, struct icc_bulk_data *paths)
{
}