Backlight not working using the 4dcape-43 lcd

I need help enabling the pwm when using the 4dcape-43. P9_14 is the pin needed for the displays backlight according to the instructions. When I enable it I get a conflict with the display. Since I’m getting a conflict I assume it’s being setup but I’m not sure how to access it. Using the backlight max_brightness is not working.

In /sys/devices/ocp.3 I do see ‘48302000.epwmss’ so I believe there is a pmw being setup. but how do I use it?

Not really sure what to do next or how to resolve the conflict. The Kernel version is 3.8.13


root@beaglebone:/sys/devices/bone_capemgr.9# more slots
0: 54:PF—
1: 55:PF—
2: 56:PF—
3: 57:P—L 4D 4.3 LCD CAPE- 4DCAPE-43T ,00A1,4D SYSTEMS ,BB-BONE-LCD4 -01
4: ff:P-O-L Bone-LT-eMMC-2G,00A0,Texas Instrument,BB-BONE-EMMC-2G
5: ff:P-O-- Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI
6: ff:P-O-- Bone-Black-HDMIN,00A0,Texas Instrument,BB-BONELT-HDMIN

Adding the following to the uEnv.txt:
root@beaglebone:~# echo am33xx_pwm > /sys/devices/bone_capemgr.9/slots
root@beaglebone:~# echo bone_pwm_P9_14 > /sys/devices/bone_capemgr.9/slots

[ 7558.435733] bone-capemgr bone_capemgr.9: part_number ‘bone_pwm_P9_14’, version ‘N/A’
[ 7558.449098] bone-capemgr bone_capemgr.9: slot #10: generic override
[ 7558.455749] bone-capemgr bone_capemgr.9: bone: Using override eeprom data at slot 10
[ 7558.463871] bone-capemgr bone_capemgr.9: slot #10: ‘Override Board Name,00A0,Override Manuf,bone pwm_P9_14’
[ 7558.478213] bone-capemgr bone_capemgr.9: slot #10: Requesting part number/version based 'bone_pwm_P9_14-00A0.dtbo
[ 7558.492824] bone-capemgr bone_capemgr.9: slot #10: Requesting firmware ‘bone_pwm_P9_14-00A0.dtbo’ for board-name ‘Override Board Name’, version ‘00A0’
[ 7558.510830] bone-capemgr bone_capemgr.9: slot #10: dtbo ‘bone_pwm_P9_14-00A0.dtbo’ loaded; converting to live tree
[ 7558.525956] bone-capemgr bone_capemgr.9: slot #10: bone_pwm_P9_14 conflict P9.14 (#3:BB-BONE-LCD4-01)
[ 7558.535801] bone-capemgr bone_capemgr.9: slot #10: Failed verification -sh: echo: write error: File exists

The backlight brightness is shown at 100.
cat /sys/class/backlight/blacklight.11/max_brightness = 100