Commit 2fcfa72f authored by Peng Fan's avatar Peng Fan Committed by Georgi Djakov
Browse files

interconnect: add device managed bulk API 



Add device managed bulk API to simplify driver.

Signed-off-by: default avatarPeng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/20220703091132.1412063-4-peng.fan@oss.nxp.com


Signed-off-by: default avatarGeorgi Djakov <djakov@kernel.org>
parent e2a4a0ee

drivers/interconnect/bulk.c

+42 −0
Original line number Diff line number Diff line
@@ -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);

include/linux/interconnect.h

+7 −0
Original line number Diff line number Diff line
@@ -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)

{

}