Update rockchip-pwm-fan.sh

rockchip：optimize temperature control and start fan script

target/linux/rockchip/armv8/base-files/usr/bin/rockchip-pwm-fan.sh

@@ -1,46 +1,30 @@
 #!/bin/bash
-echo -n 4 > /sys/class/thermal/cooling_device0/cur_state
+
-sleep 5
 echo -n 0 > /sys/class/thermal/cooling_device0/cur_state
-declare -a CpuTemps=(65000 60000 50000 40000 20000)
+
+declare -a CpuTemps=(65000 60000 55000 50000 49000)
 declare -a CoolState=(4 3 2 1 0)
-declare -a Percents=(100 70 50 20 0)
+
-DefaultDuty=0
+last_duty=0
-DefaultPercents=0
 
 while true
 do
   temp=$(cat /sys/class/thermal/thermal_zone0/temp)
-	INDEX=0
+  DUTY=0
-	FOUNDTEMP=0
-	DUTY=$DefaultDuty
-	PERCENT=$DefaultPercents
-	
-	for i in 0 1 2 3 4; do
-		if [ $temp -gt ${CpuTemps[$i]} ]; then
-			INDEX=$i
-			FOUNDTEMP=1
-			break
-		fi	
-	done
-	if [ ${FOUNDTEMP} == 1 ]; then
-		DUTY=${CoolState[$i]}
-		PERCENT=${Percents[$i]}
-	fi
 
-	if [[ $last_dutu -eq '0' ]]; then
+  for i in ${!CpuTemps[@]}; do
-		if [[ $DUTY -ne '0' ]]; then 
+    if [ $temp -ge ${CpuTemps[$i]} ]; then
-			echo -n 4 > /sys/class/thermal/cooling_device0/cur_state;
+      DUTY=${CoolState[$i]}
-			sleep 1s;
+      break
-			echo -n $DUTY > /sys/class/thermal/cooling_device0/cur_state;
+    fi
-		else
+  done
-			echo -n 0 > /sys/class/thermal/cooling_device0/cur_state;
-		fi
-	else
-		echo -n $DUTY > /sys/class/thermal/cooling_device0/cur_state;
-	fi
 
-	last_dutu=$DUTY
+  if [ $DUTY -ne $last_duty ]; then
-	echo "temp: $temp, duty: $DUTY, ${PERCENT}%"
+    echo -n $DUTY > /sys/class/thermal/cooling_device0/cur_state
-	sleep 60s;
+    last_duty=$DUTY
+  fi
+
+  echo "temp: $temp, duty: $DUTY"
+
+  sleep 60s
 done