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authorPeng Fan <peng.fan@nxp.com>2022-07-03 12:11:25 +0300
committerGeorgi Djakov <djakov@kernel.org>2022-07-04 16:14:29 +0300
commit2fcfa72fc13f0203bb676bd1ec30ec85e17855be (patch)
treece95940724ff07c5b90d161b3a21425c4bd609fb /drivers/interconnect/bulk.c
parente2a4a0eeb0cd308bb96d168f90c225da2084d4dc (diff)
downloadlinux-2fcfa72fc13f0203bb676bd1ec30ec85e17855be.tar.xz
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>
Diffstat (limited to 'drivers/interconnect/bulk.c')
-rw-r--r--drivers/interconnect/bulk.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/interconnect/bulk.c b/drivers/interconnect/bulk.c
index 448cc536aa79..8b1d8a412464 100644
--- a/drivers/interconnect/bulk.c
+++ b/drivers/interconnect/bulk.c
@@ -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);