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interconnect: Add devm_of_icc_get_by_index() as exported API for users

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Users can use devm version of of_icc_get_by_index() to benefit from
automatic resource release.

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Acked-by: Georgi Djakov <djakov@kernel.org>
Link: https://lore.kernel.org/r/20260501-milos-camcc-icc-v2-1-bb83c1256cc3@fairphone.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This commit is contained in:
Luca Weiss 2026-05-01 11:18:29 +02:00 committed by Bjorn Andersson
parent 10524682d1
commit 771ed1b129
2 changed files with 26 additions and 0 deletions
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20
drivers/interconnect/core.c
View File

@ -443,6 +443,26 @@ struct icc_path *devm_of_icc_get(struct device *dev, const char *name)
}
EXPORT_SYMBOL_GPL(devm_of_icc_get);
struct icc_path *devm_of_icc_get_by_index(struct device *dev, int idx)
{
struct icc_path **ptr, *path;
ptr = devres_alloc(devm_icc_release, sizeof(*ptr), GFP_KERNEL);
if (!ptr)
return ERR_PTR(-ENOMEM);
path = of_icc_get_by_index(dev, idx);
if (!IS_ERR(path)) {
*ptr = path;
devres_add(dev, ptr);
} else {
devres_free(ptr);
}
return path;
}
EXPORT_SYMBOL_GPL(devm_of_icc_get_by_index);
/**
* of_icc_get_by_index() - get a path handle from a DT node based on index
* @dev: device pointer for the consumer device

6
include/linux/interconnect.h
View File

@ -47,6 +47,7 @@ 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);
struct icc_path *devm_of_icc_get_by_index(struct device *dev, int idx);
void icc_put(struct icc_path *path);
int icc_enable(struct icc_path *path);
int icc_disable(struct icc_path *path);
@ -79,6 +80,11 @@ static inline struct icc_path *of_icc_get_by_index(struct device *dev, int idx)
return NULL;
}
static inline struct icc_path *devm_of_icc_get_by_index(struct device *dev, int idx)
{
return NULL;
}
static inline void icc_put(struct icc_path *path)
{
}