The CPU system wakeup QoS limit must be respected for the regular cpuidle
state selection. Therefore, let's extend the common governor helper
cpuidle_governor_latency_req(), to take the constraint into account.
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Reviewed-by: Kevin Hilman (TI) <khilman@baylibre.com>
Tested-by: Kevin Hilman (TI) <khilman@baylibre.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
Changes in v4:
- Added tags.
Changes in v3:
- New patch.
---
drivers/cpuidle/governor.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/cpuidle/governor.c b/drivers/cpuidle/governor.c
index 0d0f9751ff8f..5d0e7f78c6c5 100644
--- a/drivers/cpuidle/governor.c
+++ b/drivers/cpuidle/governor.c
@@ -111,6 +111,10 @@ s64 cpuidle_governor_latency_req(unsigned int cpu)
struct device *device = get_cpu_device(cpu);
int device_req = dev_pm_qos_raw_resume_latency(device);
int global_req = cpu_latency_qos_limit();
+ int global_wake_req = cpu_wakeup_latency_qos_limit();
+
+ if (global_req > global_wake_req)
+ global_req = global_wake_req;
if (device_req > global_req)
device_req = global_req;
--
2.43.0