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authorChanwoo Choi <cw00.choi@samsung.com>2017-10-23 10:32:08 +0900
committerMyungJoo Ham <myungjoo.ham@samsung.com>2017-10-26 17:08:40 +0900
commitf1d981eaecf8ace68ec1d15bf05f28a4887ea6fb (patch)
tree0304a9e1ca1740a05b0bc36a06de56105a6950fb /include/linux/devfreq.h
parent1051e2c304b5cf17d4117505985f8128c5c64fd9 (diff)
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.h4
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 */