mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-02 07:04:24 +00:00
Code Issues Releases Wiki Activity

thermal: intel: powerclamp: Return last requested state as cur_state

Browse source 
When the user is reading cur_state from the thermal cooling device for
Intel powerclamp device:
 - It returns the idle ratio from Package C-state counters when
   there is active idle injection session.
 - -1, when there is no active idle injection session.

This information is not very useful as the package C-state counters vary
a lot from read to read. Instead just return the last requested cur_state.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Srinivas Pandruvada 2023-02-03 20:29:02 -08:00 committed by Rafael J. Wysocki
parent 72ffc28f2f
commit 6210849654
1 changed files with 1 additions and 11 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
drivers/thermal/intel/intel_powerclamp.c
View file

@ -541,17 +541,7 @@ static int powerclamp_get_cur_state(struct thermal_cooling_device *cdev,
unsigned long *state)
{
mutex_lock(&powerclamp_lock);
if (powerclamp_data.clamping) {
if (poll_pkg_cstate_enable)
*state = pkg_cstate_ratio_cur;
else
*state = powerclamp_data.target_ratio;
} else {
/* to save power, do not poll idle ratio while not clamping */
*state = -1; /* indicates invalid state */
}
*state = powerclamp_data.target_ratio;
mutex_unlock(&powerclamp_lock);
return 0;