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thermal: gov_power_allocator: Set up trip points earlier

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Set up the trip points at the beginning of the binding function.

This simplifies the code a bit and allows for further cleanups.

Also add a check to fail the binding if the last passive trip point is
not found.

Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Lukasz Luba 2023-10-25 20:22:20 +01:00 • committed by Rafael J. Wysocki
parent 4e6d4687f7
commit e83747c2f8
1 changed files with 17 additions and 10 deletions
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27
drivers/thermal/gov_power_allocator.c
View file

@ -617,14 +617,24 @@ static int power_allocator_bind(struct thermal_zone_device *tz)
int ret;
struct power_allocator_params *params;
ret = check_power_actors(tz);
if (ret)
return ret;
params = kzalloc(sizeof(*params), GFP_KERNEL);
if (!params)
return -ENOMEM;
get_governor_trips(tz, params);
if (!params->trip_max) {
dev_warn(&tz->device, "power_allocator: missing trip_max\n");
kfree(params);
return -EINVAL;
}
ret = check_power_actors(tz);
if (ret) {
dev_warn(&tz->device, "power_allocator: binding failed\n");
kfree(params);
return ret;
}
if (!tz->tzp) {
tz->tzp = kzalloc(sizeof(*tz->tzp), GFP_KERNEL);
if (!tz->tzp) {
@ -638,12 +648,9 @@ static int power_allocator_bind(struct thermal_zone_device *tz)
if (!tz->tzp->sustainable_power)
dev_warn(&tz->device, "power_allocator: sustainable_power will be estimated\n");
get_governor_trips(tz, params);
if (params->trip_max)
estimate_pid_constants(tz, tz->tzp->sustainable_power,
params->trip_switch_on,
params->trip_max->temperature);
estimate_pid_constants(tz, tz->tzp->sustainable_power,
params->trip_switch_on,
params->trip_max->temperature);
reset_pid_controller(params);