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| author | Chanwoo Choi <cw00.choi@samsung.com> | 2017-10-23 10:32:08 +0900 |
|---|---|---|
| committer | MyungJoo Ham <myungjoo.ham@samsung.com> | 2017-10-26 17:08:40 +0900 |
| commit | f1d981eaecf8ace68ec1d15bf05f28a4887ea6fb (patch) | |
| tree | 0304a9e1ca1740a05b0bc36a06de56105a6950fb /include/linux/devfreq.h | |
| parent | 1051e2c304b5cf17d4117505985f8128c5c64fd9 (diff) | |
| download | lwn-f1d981eaecf8ace68ec1d15bf05f28a4887ea6fb.tar.gz lwn-f1d981eaecf8ace68ec1d15bf05f28a4887ea6fb.zip | |
PM / devfreq: Use the available min/max frequency
The commit a76caf55e5b35 ("thermal: Add devfreq cooling") is able
to disable OPP as a cooling device. In result, both update_devfreq()
and {min|max}_freq_show() have to consider the 'opp->available'
status of each OPP.
So, this patch adds the 'scaling_{min|max}_freq' to struct devfreq
in order to indicate the available mininum and maximum frequency
by adjusting OPP interface such as dev_pm_opp_{disable|enable}().
The 'scaling_{min|max}_freq' are used for on both update_devfreq()
and {min|max}_freq_show().
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 | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h index 597294e0cc40..997a9eb34191 100644 --- a/include/linux/devfreq.h +++ b/include/linux/devfreq.h @@ -120,6 +120,8 @@ struct devfreq_dev_profile { * touch this. * @min_freq: Limit minimum frequency requested by user (0: none) * @max_freq: Limit maximum frequency requested by user (0: none) + * @scaling_min_freq: Limit minimum frequency requested by OPP interface + * @scaling_max_freq: Limit maximum frequency requested by OPP interface * @stop_polling: devfreq polling status of a device. * @total_trans: Number of devfreq transitions * @trans_table: Statistics of devfreq transitions @@ -153,6 +155,8 @@ struct devfreq { unsigned long min_freq; unsigned long max_freq; + unsigned long scaling_min_freq; + unsigned long scaling_max_freq; bool stop_polling; /* information for device frequency transition */ |