// SPDX-License-Identifier: GPL-2.0 #include <linux/interconnect-provider.h>#include <linux/device.h>#include <linux/export.h> /** * of_icc_bulk_get() - get interconnect paths * @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 __must_check of_icc_bulk_get(struct device *dev, int num_paths,				 struct icc_bulk_data *paths){	int ret, i; 	for (i = 0; i < num_paths; i++) {		paths[i].path = of_icc_get(dev, paths[i].name);		if (IS_ERR(paths[i].path)) {			ret = PTR_ERR(paths[i].path);			if (ret != -EPROBE_DEFER)				dev_err(dev, "of_icc_get() failed on path %s (%d)\n",					paths[i].name, ret);			paths[i].path = NULL;			goto err;		}	} 	return 0; err:	icc_bulk_put(i, paths); 	return ret;}EXPORT_SYMBOL_GPL(of_icc_bulk_get); /** * icc_bulk_put() - put a list of interconnect paths * @num_paths: the number of icc_bulk_data * @paths: the icc_bulk_data table with the paths being put */void icc_bulk_put(int num_paths, struct icc_bulk_data *paths){	while (--num_paths >= 0) {		icc_put(paths[num_paths].path);		paths[num_paths].path = NULL;	}}EXPORT_SYMBOL_GPL(icc_bulk_put); /** * icc_bulk_set_bw() - set bandwidth to a set of paths * @num_paths: the number of icc_bulk_data * @paths: the icc_bulk_data table containing the paths and bandwidth * * Returns 0 on success or negative errno otherwise. */int icc_bulk_set_bw(int num_paths, const struct icc_bulk_data *paths){	int ret = 0;	int i; 	for (i = 0; i < num_paths; i++) {		ret = icc_set_bw(paths[i].path, paths[i].avg_bw, paths[i].peak_bw);		if (ret) {			pr_err("icc_set_bw() failed on path %s (%d)\n", paths[i].name, ret);			return ret;		}	} 	return ret;}EXPORT_SYMBOL_GPL(icc_bulk_set_bw); /** * icc_bulk_enable() - enable a previously disabled set of paths * @num_paths: the number of icc_bulk_data * @paths: the icc_bulk_data table containing the paths and bandwidth * * Returns 0 on success or negative errno otherwise. */int icc_bulk_enable(int num_paths, const struct icc_bulk_data *paths){	int ret, i; 	for (i = 0; i < num_paths; i++) {		ret = icc_enable(paths[i].path);		if (ret) {			pr_err("icc_enable() failed on path %s (%d)\n", paths[i].name, ret);			goto err;		}	} 	return 0; err:	icc_bulk_disable(i, paths); 	return ret;}EXPORT_SYMBOL_GPL(icc_bulk_enable); /** * icc_bulk_disable() - disable a set of interconnect paths * @num_paths: the number of icc_bulk_data * @paths: the icc_bulk_data table containing the paths and bandwidth */void icc_bulk_disable(int num_paths, const struct icc_bulk_data *paths){	while (--num_paths >= 0)		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);