From 3410a271fd8c1dbbbeaf48a4976e751d35d8b213 Mon Sep 17 00:00:00 2001
From: linuswck <linuswck@m-labs.hk>
Date: Mon, 22 Jul 2024 10:53:52 +0800
Subject: [PATCH] thermostat: rst pid_state at pwr_up

---
 src/thermostat/thermostat.rs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/thermostat/thermostat.rs b/src/thermostat/thermostat.rs
index 58cd346..bc222b5 100644
--- a/src/thermostat/thermostat.rs
+++ b/src/thermostat/thermostat.rs
@@ -213,12 +213,14 @@ impl Thermostat {
     }
 
     pub fn power_up(&mut self) {
-        self.max1968.power_up();
+        if !self.max1968.is_powered_on() {
+            self.max1968.power_up();
+            self.pid_ctrl_ch0.reset_pid_state();
+        }
     }
 
     pub fn power_down(&mut self) {
         self.max1968.power_down();
-        self.pid_ctrl_ch0.reset_pid_state();
     }
 
     fn set_center_pt(&mut self, value: ElectricPotential) {