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| author | Leonard Crestez <leonard.crestez@nxp.com> | 2020-09-08 19:24:45 +0900 |
|---|---|---|
| committer | Chanwoo Choi <cw00.choi@samsung.com> | 2020-09-29 17:50:09 +0900 |
| commit | 7b38b7b0427df70237e3c9c73f2db6b99be2b4b9 (patch) | |
| tree | 9a92fc61050105b294a42d142f12170f935950fb /include/linux/devfreq.h | |
| parent | a1b8638ba1320e6684aa98233c15255eb803fac7 (diff) | |
| download | lwn-7b38b7b0427df70237e3c9c73f2db6b99be2b4b9.tar.gz lwn-7b38b7b0427df70237e3c9c73f2db6b99be2b4b9.zip | |
PM / devfreq: Add devfreq_get_devfreq_by_node function
Split off part of devfreq_get_devfreq_by_phandle into a separate
function. This allows callers to fetch devfreq instances by enumerating
devicetree instead of explicit phandles.
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
[cw00.choi: Export devfreq_get_devfreq_by_node function and
add function to devfreq.h when CONFIG_PM_DEVFREQ is enabled.]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Diffstat (limited to 'include/linux/devfreq.h')
| -rw-r--r-- | include/linux/devfreq.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h index 12782fbb4c25..eb971b8e5051 100644 --- a/include/linux/devfreq.h +++ b/include/linux/devfreq.h @@ -261,6 +261,7 @@ void devm_devfreq_unregister_notifier(struct device *dev, struct devfreq *devfreq, struct notifier_block *nb, unsigned int list); +struct devfreq *devfreq_get_devfreq_by_node(struct device_node *node); struct devfreq *devfreq_get_devfreq_by_phandle(struct device *dev, int index); #if IS_ENABLED(CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND) @@ -414,6 +415,11 @@ static inline void devm_devfreq_unregister_notifier(struct device *dev, { } +static inline struct devfreq *devfreq_get_devfreq_by_node(struct device_node *node) +{ + return ERR_PTR(-ENODEV); +} + static inline struct devfreq *devfreq_get_devfreq_by_phandle(struct device *dev, int index) { |