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| author | Akash Asthana <akashast@codeaurora.org> | 2020-04-15 12:23:10 +0200 |
|---|---|---|
| committer | Georgi Djakov <georgi.djakov@linaro.org> | 2020-04-27 20:44:33 +0200 |
| commit | e145d9a184f23639edc864e2fa08fcc1853361a4 (patch) | |
| tree | 5426d21b7f67c133cb2c5151879a2f146c00496b | |
| parent | Linux 5.7-rc3 (diff) | |
| download | linux-e145d9a184f23639edc864e2fa08fcc1853361a4.tar.xz linux-e145d9a184f23639edc864e2fa08fcc1853361a4.zip | |
interconnect: Add devm_of_icc_get() as exported API for users
Users can use devm version of of_icc_get() to benefit from automatic
resource release.
Signed-off-by: Akash Asthana <akashast@codeaurora.org>
Reviewed by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1586946198-13912-2-git-send-email-akashast@codeaurora.org
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
| -rw-r--r-- | drivers/interconnect/core.c | 25 | ||||
| -rw-r--r-- | include/linux/interconnect.h | 7 |
2 files changed, 32 insertions, 0 deletions
diff --git a/drivers/interconnect/core.c b/drivers/interconnect/core.c index 2c6515e3ecf1..f5699ed34e43 100644 --- a/drivers/interconnect/core.c +++ b/drivers/interconnect/core.c @@ -350,6 +350,31 @@ static struct icc_node *of_icc_get_from_provider(struct of_phandle_args *spec) return node; } +static void devm_icc_release(struct device *dev, void *res) +{ + icc_put(*(struct icc_path **)res); +} + +struct icc_path *devm_of_icc_get(struct device *dev, const char *name) +{ + 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(dev, name); + if (!IS_ERR(path)) { + *ptr = path; + devres_add(dev, ptr); + } else { + devres_free(ptr); + } + + return path; +} +EXPORT_SYMBOL_GPL(devm_of_icc_get); + /** * of_icc_get() - get a path handle from a DT node based on name * @dev: device pointer for the consumer device diff --git a/include/linux/interconnect.h b/include/linux/interconnect.h index d70a914cba11..770692421f4c 100644 --- a/include/linux/interconnect.h +++ b/include/linux/interconnect.h @@ -28,6 +28,7 @@ struct device; 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); void icc_put(struct icc_path *path); int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw); void icc_set_tag(struct icc_path *path, u32 tag); @@ -46,6 +47,12 @@ static inline struct icc_path *of_icc_get(struct device *dev, return NULL; } +static inline struct icc_path *devm_of_icc_get(struct device *dev, + const char *name) +{ + return NULL; +} + static inline void icc_put(struct icc_path *path) { } |