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- // 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() - 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);
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