tree and ls -l and additions...

/sys/bus/platform/devices/48302200.pwm
|-- driver -> ../../../../../../../../bus/platform/drivers/ehrpwm
|-- driver_override
|-- modalias
|-- of_node -> ../../../../../../../../firmware/devicetree/base/ocp/interconnect@48000000/segment@300000/target-module@2000/epwmss@0/pwm@200
|-- power
|   |-- async
|   |-- autosuspend_delay_ms
|   |-- control
|   |-- runtime_active_kids
|   |-- runtime_active_time
|   |-- runtime_enabled
|   |-- runtime_status
|   |-- runtime_suspended_time
|   `-- runtime_usage
|-- pwm
|   `-- pwmchip5
|       |-- device -> ../../../48302200.pwm
|       |-- export
|       |-- npwm
|       |-- power
|       |   |-- async
|       |   |-- autosuspend_delay_ms
|       |   |-- control
|       |   |-- runtime_active_kids
|       |   |-- runtime_active_time
|       |   |-- runtime_enabled
|       |   |-- runtime_status
|       |   |-- runtime_suspended_time
|       |   `-- runtime_usage
|       |-- pwm0
|       |   |-- capture
|       |   |-- duty_cycle
|       |   |-- enable
|       |   |-- period
|       |   |-- polarity
|       |   |-- power
|       |   |   |-- async
|       |   |   |-- autosuspend_delay_ms
|       |   |   |-- control
|       |   |   |-- runtime_active_kids
|       |   |   |-- runtime_active_time
|       |   |   |-- runtime_enabled
|       |   |   |-- runtime_status
|       |   |   |-- runtime_suspended_time
|       |   |   `-- runtime_usage
|       |   `-- uevent
|       |-- pwm1
|       |   |-- capture
|       |   |-- duty_cycle
|       |   |-- enable
|       |   |-- period
|       |   |-- polarity
|       |   |-- power
|       |   |   |-- async
|       |   |   |-- autosuspend_delay_ms
|       |   |   |-- control
|       |   |   |-- runtime_active_kids
|       |   |   |-- runtime_active_time
|       |   |   |-- runtime_enabled
|       |   |   |-- runtime_status
|       |   |   |-- runtime_suspended_time
|       |   |   `-- runtime_usage
|       |   `-- uevent
|       |-- subsystem -> ../../../../../../../../../../class/pwm
|       |-- uevent
|       `-- unexport
|-- subsystem -> ../../../../../../../../bus/platform
`-- uevent

13 directories, 55 files

and...

total 0
lrwxrwxrwx 1 root root 0 Dec 31  1999 pwmchip0 -> ../../devices/platform/ocp/48000000.interconnect/48000000.interconnect:segment@300000/48300000.target-module/48300000.epwmss/48300100.pwm/pwm/pwmchip0
lrwxrwxrwx 1 root root 0 Dec 31  1999 pwmchip1 -> ../../devices/platform/ocp/48000000.interconnect/48000000.interconnect:segment@300000/48302000.target-module/48302000.epwmss/48302100.pwm/pwm/pwmchip1
lrwxrwxrwx 1 root root 0 Dec 31  1999 pwmchip2 -> ../../devices/platform/ocp/48000000.interconnect/48000000.interconnect:segment@300000/48304000.target-module/48304000.epwmss/48304100.pwm/pwm/pwmchip2
lrwxrwxrwx 1 root root 0 Dec 31  1999 pwmchip3 -> ../../devices/platform/ocp/48000000.interconnect/48000000.interconnect:segment@300000/48300000.target-module/48300000.epwmss/48300200.pwm/pwm/pwmchip3
lrwxrwxrwx 1 root root 0 Dec 31  1999 pwmchip5 -> ../../devices/platform/ocp/48000000.interconnect/48000000.interconnect:segment@300000/48302000.target-module/48302000.epwmss/48302200.pwm/pwm/pwmchip5
lrwxrwxrwx 1 root root 0 Dec 31  1999 pwmchip7 -> ../../devices/platform/ocp/48000000.interconnect/48000000.interconnect:segment@300000/48304000.target-module/48304000.epwmss/48304200.pwm/pwm/pwmchip7

ls -l /dev/bone/pwm

total 0
drwxr-xr-x 2 root root 80 Mar 22 12:00 0
drwxr-xr-x 2 root root 80 Mar 22 12:00 1
drwxr-xr-x 2 root root 80 Mar 22 12:00 2


ls -l /dev/bone/pwm/*

/dev/bone/pwm/0:
total 0
lrwxrwxrwx 1 root root 29 Mar 22 12:00 a -> /sys/class/pwm/pwmchip3/pwm0/
lrwxrwxrwx 1 root root 29 Mar 22 12:00 b -> /sys/class/pwm/pwmchip3/pwm1/

/dev/bone/pwm/1:
total 0
lrwxrwxrwx 1 root root 29 Mar 22 12:00 a -> /sys/class/pwm/pwmchip5/pwm0/
lrwxrwxrwx 1 root root 29 Mar 22 12:00 b -> /sys/class/pwm/pwmchip5/pwm1/

/dev/bone/pwm/2:
total 0
lrwxrwxrwx 1 root root 29 Mar 22 12:00 a -> /sys/class/pwm/pwmchip7/pwm0/
lrwxrwxrwx 1 root root 29 Mar 22 12:00 b -> /sys/class/pwm/pwmchip7/pwm1/