diff options
Diffstat (limited to 'meta-ibm/meta-witherspoon/recipes-phosphor/chassis/vrm-control/ir35221-unbind-bind.sh')
-rw-r--r-- | meta-ibm/meta-witherspoon/recipes-phosphor/chassis/vrm-control/ir35221-unbind-bind.sh | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/meta-ibm/meta-witherspoon/recipes-phosphor/chassis/vrm-control/ir35221-unbind-bind.sh b/meta-ibm/meta-witherspoon/recipes-phosphor/chassis/vrm-control/ir35221-unbind-bind.sh new file mode 100644 index 0000000000..160cc5d27b --- /dev/null +++ b/meta-ibm/meta-witherspoon/recipes-phosphor/chassis/vrm-control/ir35221-unbind-bind.sh @@ -0,0 +1,81 @@ +#!/bin/bash +# ######################################################### +# Script to run on witherspoon BMC to unbind/bind the ir35221 +# driver's devices + +status=0 +max_retries=3 +driver_path="/sys/bus/i2c/drivers/ir35221/" +platform_path="/sys/devices/platform/ahb/ahb:apb/ahb:apb:i2c@1e78a000/" + +unbind_driver () { + echo $1 > $driver_path/unbind +} + +bind_driver () { + device=$1 + tries=0 + + until [ $tries -ge $max_retries ]; do + tries=$((tries+1)) + ret=0 + echo $device > $driver_path/bind || ret=$? + if [ $ret -ne 0 ]; then + echo "VRM $1 bind failed. Try $tries" + sleep 1 + else + tries=$((max_retries+1)) + fi + done + + #Script will return a nonzero value if any binds fail. + if [ $ret -ne 0 ]; then + status=$ret + fi +} + +if [ "$1" = "unbind" ] +then + if [ -e $driver_path/4-0070 ] + then + unbind_driver "4-0070" + fi + + if [ -e $driver_path/4-0071 ] + then + unbind_driver "4-0071" + fi + + if [ -e $driver_path/5-0070 ] + then + unbind_driver "5-0070" + fi + + if [ -e $driver_path/5-0071 ] + then + unbind_driver "5-0071" + fi +elif [ "$1" = "bind" ] +then + if [ -e $platform_path/1e78a140.i2c-bus/i2c-4/4-0070 ] + then + bind_driver "4-0070" + fi + + if [ -e $platform_path/1e78a140.i2c-bus/i2c-4/4-0071 ] + then + bind_driver "4-0071" + fi + + if [ -e $platform_path/1e78a180.i2c-bus/i2c-5/5-0070 ] + then + bind_driver "5-0070" + fi + + if [ -e $platform_path/1e78a180.i2c-bus/i2c-5/5-0071 ] + then + bind_driver "5-0071" + fi +fi + +exit $status |