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[v2,2/4] thermal: power_allocator: respect upper and lower bounds for cooling device

Message ID 20201015112441.4056-3-lukasz.luba@arm.com
State Accepted
Commit 8132df3a06a41823aa370dbb4ff08f48fa07f6df
Headers show
Series Add upper and lower limits in IPA power budget calculation | expand

Commit Message

Lukasz Luba Oct. 15, 2020, 11:24 a.m. UTC 
The thermal cooling device specified in DT might be instantiated for
a thermal zone trip point with a limited set of OPPs to operate on. This
configuration should be supported by Intelligent Power Allocation (IPA),
since it is a standard for other governors. Change the code and allow IPA
to get power value of lower and upper bound set for a given cooling
device.

Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
---
 drivers/thermal/gov_power_allocator.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)
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Patch

diff --git a/drivers/thermal/gov_power_allocator.c b/drivers/thermal/gov_power_allocator.c
index ab0be26f0816..eb8c9afadf19 100644
--- a/drivers/thermal/gov_power_allocator.c
+++ b/drivers/thermal/gov_power_allocator.c
@@ -96,7 +96,10 @@  static u32 estimate_sustainable_power(struct thermal_zone_device *tz)
 		if (instance->trip != params->trip_max_desired_temperature)
 			continue;
 
-		if (power_actor_get_min_power(cdev, &min_power))
+		if (!cdev_is_power_actor(cdev))
+			continue;
+
+		if (cdev->ops->state2power(cdev, instance->upper, &min_power))
 			continue;
 
 		sustainable_power += min_power;
@@ -398,7 +401,8 @@  static int allocate_power(struct thermal_zone_device *tz,
 
 		weighted_req_power[i] = frac_to_int(weight * req_power[i]);
 
-		if (power_actor_get_max_power(cdev, &max_power[i]))
+		if (cdev->ops->state2power(cdev, instance->lower,
+					   &max_power[i]))
 			continue;
 
 		total_req_power += req_power[i];