diff options
| -rw-r--r-- | meta-openbmc-machines/meta-openpower/meta-ibm/meta-witherspoon/recipes-phosphor/chassis/vrm-control/ir35221-unbind-bind.sh | 65 |
1 files changed, 49 insertions, 16 deletions
diff --git a/meta-openbmc-machines/meta-openpower/meta-ibm/meta-witherspoon/recipes-phosphor/chassis/vrm-control/ir35221-unbind-bind.sh b/meta-openbmc-machines/meta-openpower/meta-ibm/meta-witherspoon/recipes-phosphor/chassis/vrm-control/ir35221-unbind-bind.sh index 5c100eb4f..160cc5d27 100644 --- a/meta-openbmc-machines/meta-openpower/meta-ibm/meta-witherspoon/recipes-phosphor/chassis/vrm-control/ir35221-unbind-bind.sh +++ b/meta-openbmc-machines/meta-openpower/meta-ibm/meta-witherspoon/recipes-phosphor/chassis/vrm-control/ir35221-unbind-bind.sh @@ -3,46 +3,79 @@ # 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 /sys/bus/i2c/drivers/ir35221/4-0070 ] + if [ -e $driver_path/4-0070 ] then - echo 4-0070 > /sys/bus/i2c/drivers/ir35221/$1 + unbind_driver "4-0070" fi - if [ -e /sys/bus/i2c/drivers/ir35221/4-0071 ] + if [ -e $driver_path/4-0071 ] then - echo 4-0071 > /sys/bus/i2c/drivers/ir35221/$1 + unbind_driver "4-0071" fi - if [ -e /sys/bus/i2c/drivers/ir35221/5-0070 ] + if [ -e $driver_path/5-0070 ] then - echo 5-0070 > /sys/bus/i2c/drivers/ir35221/$1 + unbind_driver "5-0070" fi - if [ -e /sys/bus/i2c/drivers/ir35221/5-0071 ] + if [ -e $driver_path/5-0071 ] then - echo 5-0071 > /sys/bus/i2c/drivers/ir35221/$1 + unbind_driver "5-0071" fi elif [ "$1" = "bind" ] then - if [ -e /sys/devices/platform/ahb/ahb:apb/ahb:apb:i2c@1e78a000/1e78a140.i2c-bus/i2c-4/4-0070 ] + if [ -e $platform_path/1e78a140.i2c-bus/i2c-4/4-0070 ] then - echo 4-0070 > /sys/bus/i2c/drivers/ir35221/$1 + bind_driver "4-0070" fi - if [ -e /sys/devices/platform/ahb/ahb:apb/ahb:apb:i2c@1e78a000/1e78a140.i2c-bus/i2c-4/4-0071 ] + if [ -e $platform_path/1e78a140.i2c-bus/i2c-4/4-0071 ] then - echo 4-0071 > /sys/bus/i2c/drivers/ir35221/$1 + bind_driver "4-0071" fi - if [ -e /sys/devices/platform/ahb/ahb:apb/ahb:apb:i2c@1e78a000/1e78a180.i2c-bus/i2c-5/5-0070 ] + if [ -e $platform_path/1e78a180.i2c-bus/i2c-5/5-0070 ] then - echo 5-0070 > /sys/bus/i2c/drivers/ir35221/$1 + bind_driver "5-0070" fi - if [ -e /sys/devices/platform/ahb/ahb:apb/ahb:apb:i2c@1e78a000/1e78a180.i2c-bus/i2c-5/5-0071 ] + if [ -e $platform_path/1e78a180.i2c-bus/i2c-5/5-0071 ] then - echo 5-0071 > /sys/bus/i2c/drivers/ir35221/$1 + bind_driver "5-0071" fi fi + +exit $status |