diff options
| author | Chanwoo Choi <cw00.choi@samsung.com> | 2015-11-10 20:31:07 +0900 |
|---|---|---|
| committer | MyungJoo Ham <myungjoo.ham@samsung.com> | 2016-05-03 11:20:06 +0900 |
| commit | 8f510aeb223b26c4ffbece9fa92e4befea470f57 (patch) | |
| tree | bf4fb4bad488510fab1baf43cbb42df08e0e2b7e /include/linux/devfreq.h | |
| parent | 72c160bda1dbe75d532502374a6cb6be28990093 (diff) | |
PM / devfreq: Add devfreq_get_devfreq_by_phandle()
This patch adds the new devfreq_get_devfreq_by_phandle() OF helper function
which can find the instance of devfreq device by using phandle ("devfreq").
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
[m.reichl and linux.amoon: Tested it on exynos4412-odroidu3 board]
Tested-by: Markus Reichl <m.reichl@fivetechno.de>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Diffstat (limited to 'include/linux/devfreq.h')
| -rw-r--r-- | include/linux/devfreq.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h index 6fa02a20eb63..aa0b8424ebc3 100644 --- a/include/linux/devfreq.h +++ b/include/linux/devfreq.h @@ -208,6 +208,9 @@ extern int devm_devfreq_register_opp_notifier(struct device *dev, extern void devm_devfreq_unregister_opp_notifier(struct device *dev, struct devfreq *devfreq); +extern struct devfreq *devfreq_get_devfreq_by_phandle(struct device *dev, + int index); + /** * devfreq_update_stats() - update the last_status pointer in struct devfreq * @df: the devfreq instance whose status needs updating @@ -307,6 +310,12 @@ static inline void devm_devfreq_unregister_opp_notifier(struct device *dev, { } +static inline struct devfreq *devfreq_get_devfreq_by_phandle(struct device *dev, + int index) +{ + return ERR_PTR(-ENODEV); +} + static inline int devfreq_update_stats(struct devfreq *df) { return -EINVAL; |