power: PowerHintSession: do not update PID controller when target changes
There is no history kept in powerhint session, so let us just keep what
we have in the PID controller and let new samples settle.
Bug: 227003278
Test: Build
Change-Id: Ia8b9a0be288389ec36ac35c668aca013d470c257
diff --git a/aidl/power-libperfmgr/PowerHintSession.cpp b/aidl/power-libperfmgr/PowerHintSession.cpp
index 0c6f360..1edc1ca 100644
--- a/aidl/power-libperfmgr/PowerHintSession.cpp
+++ b/aidl/power-libperfmgr/PowerHintSession.cpp
@@ -269,10 +269,6 @@
return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
}
ALOGV("update target duration: %" PRId64 " ns", targetDurationNanos);
- double ratio =
- targetDurationNanos == 0 ? 1.0 : mDescriptor->duration.count() / targetDurationNanos;
- mDescriptor->integral_error =
- std::max(sPidIInit, static_cast<int64_t>(mDescriptor->integral_error * ratio));
mDescriptor->duration = std::chrono::nanoseconds(targetDurationNanos);
if (ATRACE_ENABLED()) {