mvebu: deal with the new path in the fan control script for Linux 4.0+

Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@45195 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/mvebu/base-files/sbin/fan_ctrl.sh b/target/linux/mvebu/base-files/sbin/fan_ctrl.sh
index f7f4e05..06e4621 100755 (executable)
--- a/target/linux/mvebu/base-files/sbin/fan_ctrl.sh
+++ b/target/linux/mvebu/base-files/sbin/fan_ctrl.sh
@@ -11,10 +11,18 @@ DDR_HIGH=75
 WIFI_LOW=100
 WIFI_HIGH=115
 
+if [ -d /sys/devices/pwm_fan ];then
+       FAN_CTRL=/sys/devices/pwm_fan/hwmon/hwmon0/pwm1
+elif [ -d /sys/devices/platform/pwm_fan ];then
+       FAN_CTRL=/sys/devices/platform/pwm_fan/hwmon/hwmon0/pwm1
+else
+       exit 0
+fi
+
 if [ "$CPU_TEMP" -ge "$CPU_HIGH" -o "$DDR_TEMP" -ge "$DDR_HIGH" -o "$WIFI_TEMP" -ge "$WIFI_HIGH" ];then
-       echo "255" > /sys/devices/pwm_fan/hwmon/hwmon0/pwm1
+       echo "255" > $FAN_CTRL
 elif [ "$CPU_TEMP" -ge "$CPU_LOW" -o "$DDR_TEMP" -ge "$DDR_LOW" -o "$WIFI_TEMP" -ge "$WIFI_LOW" ];then
-       echo "100" > /sys/devices/pwm_fan/hwmon/hwmon0/pwm1
+       echo "100" > $FAN_CTRL
 else
-       echo "0" > /sys/devices/pwm_fan/hwmon/hwmon0/pwm1
+       echo "0" > $FAN_CTRL
 fi