1 files changed, 15 insertions, 1 deletions
diff --git a/meta-fii/meta-kudo/recipes-phosphor/fans/pwm-init/bin/pwm_init.sh b/meta-fii/meta-kudo/recipes-phosphor/fans/pwm-init/bin/pwm_init.sh
index d559f6a31b..bd88e01c8a 100644
--- a/meta-fii/meta-kudo/recipes-phosphor/fans/pwm-init/bin/pwm_init.sh
+++ b/meta-fii/meta-kudo/recipes-phosphor/fans/pwm-init/bin/pwm_init.sh
@@ -3,4 +3,18 @@
 # Set all fans to pwm mode.
 
 # Set all pwm_enable to 1
-find /sys/class/hwmon/hwmon*/ -name 'pwm*_enable' -exec bash -c 'echo "${1}" && echo 1 > "${1}" && cat "${1}"' -- {} \;
-\ No newline at end of file
+find /sys/class/hwmon/hwmon*/ -name 'pwm*_enable' -exec bash -c 'echo "${1}" && echo 1 > "${1}" && cat "${1}"' -- {} \;
+
+for i in {0..5}
+do
+    fan_pwm_rate_of_change=0x$(printf '%02x' $((8 + i)) | \
+            awk '{print $1}')
+    # Set Fan PWM Rate-of-Change Bits(bits 4:2) to 000b
+    # Register 08h to 0Dh
+    oriRegVal=$(i2cget -y -f 18 0x2c \
+        "${fan_pwm_rate_of_change}")
+    updateVal=$((oriRegVal & 0xe3))
+    updateVal=0x$(printf "%x" ${updateVal})
+    i2cset -y -f 18 0x2c \
+        "${fan_pwm_rate_of_change}" "${updateVal}"
+done