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| author | Chanwoo Choi <cw00.choi@samsung.com> | 2017-01-31 15:38:16 +0900 |
|---|---|---|
| committer | MyungJoo Ham <myungjoo.ham@samsung.com> | 2017-01-31 15:46:49 +0900 |
| commit | bcf23c79c4e46130701370af4383b61a3cba755c (patch) | |
| tree | ca478a869ccc775a9215bb406b67bc81cd42c770 /include/linux/devfreq.h | |
| parent | b0d75c08092f870825fbb766ac191faedd248918 (diff) | |
| download | linux-stable-bcf23c79c4e46130701370af4383b61a3cba755c.tar.gz linux-stable-bcf23c79c4e46130701370af4383b61a3cba755c.tar.bz2 linux-stable-bcf23c79c4e46130701370af4383b61a3cba755c.zip | |
PM / devfreq: Fix available_governor sysfs
The devfreq using passive governor is not able to change the governor.
So, the user can not change the governor through 'available_governor' sysfs
entry. Also, the devfreq which don't use the passive governor is not able to
change to 'passive' governor on the fly.
Fixes: 996133119f57 ("PM / devfreq: Add new passive governor")
Cc: stable@vger.kernel.org
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Diffstat (limited to 'include/linux/devfreq.h')
| -rw-r--r-- | include/linux/devfreq.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h index 2de4e2eea180..e0acb0e5243b 100644 --- a/include/linux/devfreq.h +++ b/include/linux/devfreq.h @@ -104,6 +104,8 @@ struct devfreq_dev_profile { * struct devfreq_governor - Devfreq policy governor * @node: list node - contains registered devfreq governors * @name: Governor's name + * @immutable: Immutable flag for governor. If the value is 1, + * this govenror is never changeable to other governor. * @get_target_freq: Returns desired operating frequency for the device. * Basically, get_target_freq will run * devfreq_dev_profile.get_dev_status() to get the @@ -121,6 +123,7 @@ struct devfreq_governor { struct list_head node; const char name[DEVFREQ_NAME_LEN]; + const unsigned int immutable; int (*get_target_freq)(struct devfreq *this, unsigned long *freq); int (*event_handler)(struct devfreq *devfreq, unsigned int event, void *data); |