TechLab RGB overlay broken

[jadonk]

With 2020-04-06 IoT image, loading the TechLab cape RGB LED overlay:
[ 52.790728] leds_pwm techlab_rgb: unable to request PWM for techlab::blue: -16

Full dmesg log:

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 4.19.94-ti-r42 (voodoo@x3-am57xx-beagle-x15-2gb) (gcc version 8.3.0 (Debian 8.3.0-6)) #1buster SMP PREEMPT Tue Mar 31 19:38:29 UTC 2020
[    0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c5387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] OF: fdt: Machine model: TI AM335x PocketBeagle
[    0.000000] Memory policy: Data cache writeback
[    0.000000] cma: Reserved 48 MiB at 0x9c800000
[    0.000000] On node 0 totalpages: 130560
[    0.000000]   Normal zone: 1148 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 130560 pages, LIFO batch:31
[    0.000000] CPU: All CPU(s) started in SVC mode.
[    0.000000] AM335X ES2.1 (sgx neon)
[    0.000000] random: get_random_bytes called from start_kernel+0xac/0x4b4 with crng_init=0
[    0.000000] percpu: Embedded 17 pages/cpu s38988 r8192 d22452 u69632
[    0.000000] pcpu-alloc: s38988 r8192 d22452 u69632 alloc=17*4096
[    0.000000] pcpu-alloc: [0] 0
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 129412
[    0.000000] Kernel command line: console=ttyO0,115200n8 bone_capemgr.uboot_capemgr_enabled=1 root=/dev/mmcblk0p1 ro rootfstype=ext4 rootwait coherent_pool=1M net.ifnames=0 lpj=1990656 rng_core.default_quality=100 quiet
[    0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[    0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[    0.000000] Memory: 438564K/522240K available (13312K kernel code, 1136K rwdata, 4308K rodata, 1024K init, 350K bss, 34524K reserved, 49152K cma-reserved, 0K highmem)
[    0.000000] Virtual kernel memory layout:
                   vector  : 0xffff0000 - 0xffff1000   (   4 kB)
                   fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
                   vmalloc : 0xe0000000 - 0xff800000   ( 504 MB)
                   lowmem  : 0xc0000000 - 0xdfe00000   ( 510 MB)
                   pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
                   modules : 0xbf000000 - 0xbfe00000   (  14 MB)
                     .text : 0x(ptrval) - 0x(ptrval)   (14304 kB)
                     .init : 0x(ptrval) - 0x(ptrval)   (1024 kB)
                     .data : 0x(ptrval) - 0x(ptrval)   (1137 kB)
                      .bss : 0x(ptrval) - 0x(ptrval)   ( 351 kB)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] ftrace: allocating 42043 entries in 124 pages
[    0.000000] rcu: Preemptible hierarchical RCU implementation.
[    0.000000] rcu:     RCU restricting CPUs from NR_CPUS=2 to nr_cpu_ids=1.
[    0.000000]  Tasks RCU enabled.
[    0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] IRQ: Found an INTC at 0x(ptrval) (revision 5.0) with 128 interrupts
[    0.000000] OMAP clockevent source: timer2 at 24000000 Hz
[    0.000023] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[    0.000041] clocksource: timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[    0.000051] OMAP clocksource: timer1 at 24000000 Hz
[    0.001617] timer_probe: no matching timers found
[    0.001960] Console: colour dummy device 80x30
[    0.001988] WARNING: Your 'console=ttyO0' has been replaced by 'ttyS0'
[    0.001993] This ensures that you still see kernel messages. Please
[    0.001997] update your kernel commandline.
[    0.002058] Calibrating delay loop (skipped) preset value.. 995.32 BogoMIPS (lpj=1990656)
[    0.002073] pid_max: default: 32768 minimum: 301
[    0.002358] Security Framework initialized
[    0.002372] Yama: becoming mindful.
[    0.002517] AppArmor: AppArmor initialized
[    0.002624] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.002636] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.003736] CPU: Testing write buffer coherency: ok
[    0.003802] CPU0: Spectre v2: using BPIALL workaround
[    0.004303] CPU0: thread -1, cpu 0, socket -1, mpidr 0
[    0.025857] Setting up static identity map for 0x80100000 - 0x80100060
[    0.033761] rcu: Hierarchical SRCU implementation.
[    0.049777] smp: Bringing up secondary CPUs ...
[    0.049796] smp: Brought up 1 node, 1 CPU
[    0.049807] SMP: Total of 1 processors activated (995.32 BogoMIPS).
[    0.049814] CPU: All CPU(s) started in SVC mode.
[    0.051545] devtmpfs: initialized
[    0.078160] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
[    0.078793] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.078816] futex hash table entries: 256 (order: 2, 16384 bytes)
[    0.082742] xor: automatically using best checksumming function   neon
[    0.082761] pinctrl core: initialized pinctrl subsystem
[    0.084075] NET: Registered protocol family 16
[    0.089311] DMA: preallocated 1024 KiB pool for atomic coherent allocations
[    0.160341] l4_wkup_cm:clk:0010:0: failed to disable
[    0.212733] audit: initializing netlink subsys (disabled)
[    0.217869] audit: type=2000 audit(0.204:1): state=initialized audit_enabled=0 res=1
[    0.221941] OMAP GPIO hardware version 0.1
[    0.244323] hw-breakpoint: debug architecture 0x4 unsupported.
[    0.269920] raid6: using algorithm neonx8 gen() 0 MB/s
[    0.269934] raid6: .... xor() 0 MB/s, rmw enabled
[    0.269941] raid6: using neon recovery algorithm
[    0.277923] edma 49000000.edma: TI EDMA DMA engine driver
[    0.283985] SCSI subsystem initialized
[    0.285917] libata version 3.00 loaded.
[    0.286231] usbcore: registered new interface driver usbfs
[    0.286287] usbcore: registered new interface driver hub
[    0.286406] usbcore: registered new device driver usb
[    0.288416] omap_i2c 4802a000.i2c: bus 1 rev0.11 at 400 kHz
[    0.289450] omap_i2c 4819c000.i2c: bus 2 rev0.11 at 400 kHz
[    0.290124] pps_core: LinuxPPS API ver. 1 registered
[    0.290134] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <[email protected]>
[    0.290157] PTP clock support registered
[    0.291068] omap-mailbox 480c8000.mailbox: omap mailbox rev 0x400
[    0.294116] Advanced Linux Sound Architecture Driver Initialized.
[    0.294893] NetLabel: Initializing
[    0.294904] NetLabel:  domain hash size = 128
[    0.294908] NetLabel:  protocols = UNLABELED CIPSOv4 CALIPSO
[    0.295002] NetLabel:  unlabeled traffic allowed by default
[    0.296103] clocksource: Switched to clocksource timer1
[    0.458557] VFS: Disk quotas dquot_6.6.0
[    0.458665] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[    0.459549] AppArmor: AppArmor Filesystem Enabled
[    0.472528] NET: Registered protocol family 2
[    0.473566] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes)
[    0.473601] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
[    0.473644] TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
[    0.473702] TCP: Hash tables configured (established 4096 bind 4096)
[    0.473831] UDP hash table entries: 256 (order: 1, 8192 bytes)
[    0.473853] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
[    0.474205] NET: Registered protocol family 1
[    0.487365] RPC: Registered named UNIX socket transport module.
[    0.487376] RPC: Registered udp transport module.
[    0.487381] RPC: Registered tcp transport module.
[    0.487386] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.488479] Unpacking initramfs...
[    0.855704] Freeing initrd memory: 6436K
[    0.856613] hw perfevents: enabled with armv7_cortex_a8 PMU driver, 5 counters available
[    0.859644] Initialise system trusted keyrings
[    0.860074] workingset: timestamp_bits=14 max_order=17 bucket_order=3
[    0.867235] zbud: loaded
[    0.874773] NFS: Registering the id_resolver key type
[    0.874822] Key type id_resolver registered
[    0.874828] Key type id_legacy registered
[    0.874846] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    0.875200] fuse init (API version 7.27)
[    0.885882] Key type asymmetric registered
[    0.885896] Asymmetric key parser 'x509' registered
[    0.886002] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246)
[    0.890367] io scheduler noop registered
[    0.890377] io scheduler deadline registered
[    0.890691] io scheduler cfq registered (default)
[    0.890702] io scheduler mq-deadline registered
[    0.894381] pinctrl-single 44e10800.pinmux: 142 pins, size 568
[    0.903334] gpio-of-helper ocp:cape-universal: ready
[    0.912309] Serial: 8250/16550 driver, 6 ports, IRQ sharing disabled
[    0.915816] 44e09000.serial: ttyS0 at MMIO 0x44e09000 (irq = 30, base_baud = 3000000) is a 8250
[    0.925947] console [ttyS0] enabled
[    0.927105] 48022000.serial: ttyS1 at MMIO 0x48022000 (irq = 31, base_baud = 3000000) is a 8250
[    0.928048] 48024000.serial: ttyS2 at MMIO 0x48024000 (irq = 32, base_baud = 3000000) is a 8250
[    0.929196] 481a8000.serial: ttyS4 at MMIO 0x481a8000 (irq = 33, base_baud = 3000000) is a 8250
[    0.932720] omap_rng 48310000.rng: Random Number Generator ver. 20
[    0.933668] sdhci: Secure Digital Host Controller Interface driver
[    0.933676] sdhci: Copyright(c) Pierre Ossman
[    0.934139] omap_gpio 44e07000.gpio: Could not set line 6 debounce to 200000 microseconds (-22)
[    0.934150] omap_hsmmc 48060000.mmc: Got CD GPIO
[    0.934740] omap_hsmmc 48060000.mmc: Linked as a consumer to regulator.1
[    0.935079] random: fast init done
[    0.935452] random: crng init done
[    0.961333] sdhci-pltfm: SDHCI platform and OF driver helper
[    1.024380] mmc0: host does not support reading read-only switch, assuming write-enable
[    1.027749] mmc0: new high speed SDHC card at address aaaa
[    1.041791] libphy: Fixed MDIO Bus: probed
[    1.042767] CAN device driver interface
[    1.044999] mmcblk0: mmc0:aaaa SS16G 14.8 GiB
[    1.046458] c_can_platform 481cc000.can: c_can_platform device registered (regs=4db2977b, irq=39)
[    1.047771] c_can_platform 481d0000.can: c_can_platform device registered (regs=b75146b4, irq=40)
[    1.049782] usbcore: registered new interface driver smsc95xx
[    1.051725] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.051790] ehci-platform: EHCI generic platform driver
[    1.052251] ehci-omap: OMAP-EHCI Host Controller driver
[    1.053209] usbcore: registered new interface driver usb-storage
[    1.055287]  mmcblk0: p1
[    1.058715] am335x-phy-driver 47401300.usb-phy: 47401300.usb-phy supply vcc not found, using dummy regulator
[    1.058865] am335x-phy-driver 47401300.usb-phy: Linked as a consumer to regulator.0
[    1.062470] musb-hdrc musb-hdrc.0: MUSB HDRC host driver
[    1.062512] musb-hdrc musb-hdrc.0: new USB bus registered, assigned bus number 1
[    1.062869] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.19
[    1.062879] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.062887] usb usb1: Product: MUSB HDRC host driver
[    1.062894] usb usb1: Manufacturer: Linux 4.19.94-ti-r42 musb-hcd
[    1.062902] usb usb1: SerialNumber: musb-hdrc.0
[    1.063724] hub 1-0:1.0: USB hub found
[    1.063787] hub 1-0:1.0: 1 port detected
[    1.066749] am335x-phy-driver 47401b00.usb-phy: 47401b00.usb-phy supply vcc not found, using dummy regulator
[    1.066903] am335x-phy-driver 47401b00.usb-phy: Linked as a consumer to regulator.0
[    1.070434] musb-hdrc musb-hdrc.1: MUSB HDRC host driver
[    1.070474] musb-hdrc musb-hdrc.1: new USB bus registered, assigned bus number 2
[    1.070815] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.19
[    1.070826] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.070834] usb usb2: Product: MUSB HDRC host driver
[    1.070841] usb usb2: Manufacturer: Linux 4.19.94-ti-r42 musb-hcd
[    1.070848] usb usb2: SerialNumber: musb-hdrc.1
[    1.071657] hub 2-0:1.0: USB hub found
[    1.071720] hub 2-0:1.0: 1 port detected
[    1.083395] omap_rtc 44e3e000.rtc: already running
[    1.084188] omap_rtc 44e3e000.rtc: registered as rtc0
[    1.085766] i2c /dev entries driver
[    1.089797] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[    1.090398] softdog: initialized. soft_noboot=0 soft_margin=60 sec soft_panic=0 (nowayout=0)
[    1.094939] ledtrig-cpu: registered to indicate activity on CPUs
[    1.095499] omap-aes 53500000.aes: OMAP AES hw accel rev: 3.2
[    1.095860] omap-aes 53500000.aes: will run requests pump with realtime priority
[    1.098573] omap-sham 53100000.sham: hw accel on OMAP rev 4.3
[    1.102460] hidraw: raw HID events driver (C) Jiri Kosina
[    1.109731] gnss: GNSS driver registered with major 242
[    1.116893] NET: Registered protocol family 10
[    1.188758] Segment Routing with IPv6
[    1.188914] mip6: Mobile IPv6
[    1.189069] NET: Registered protocol family 17
[    1.189100] can: controller area network core (rev 20170425 abi 9)
[    1.189187] NET: Registered protocol family 29
[    1.189284] 8021q: 802.1Q VLAN Support v1.8
[    1.189379] Key type dns_resolver registered
[    1.189385] mpls_gso: MPLS GSO support
[    1.189693] ThumbEE CPU extension supported.
[    1.189709] Registering SWP/SWPB emulation handler
[    1.189720] omap_voltage_late_init: Voltage driver support not added
[    1.197959] registered taskstats version 1
[    1.197969] Loading compiled-in X.509 certificates
[    1.198095] zswap: loaded using pool lzo/zbud
[    1.201568] Btrfs loaded, crc32c=crc32c-generic
[    1.201678] AppArmor: AppArmor sha1 policy hashing enabled
[    1.257823] tps6521x_pwrbutton tps65217-pwrbutton: DMA mask not set
[    1.258665] input: tps65217_pwr_but as /devices/platform/ocp/44e0b000.i2c/i2c-0/0-0024/tps65217-pwrbutton/input/input0
[    1.259650] tps65217 0-0024: TPS65217 ID 0xe version 1.2
[    1.260733] at24 0-0050: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[    1.260846] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz
[    1.261843] cpu cpu0: Linked as a consumer to regulator.3
[    1.261948] cpu cpu0: Dropping the link to regulator.3
[    1.262436] cpu cpu0: Linked as a consumer to regulator.3
[    1.266256] omap_rtc 44e3e000.rtc: setting system clock to 2020-06-15 21:11:37 UTC (1592255497)
[    1.267507] ALSA device list:
[    1.267517]   No soundcards found.
[    1.273921] Freeing unused kernel memory: 1024K
[    1.274649] Run /init as init process
[    7.054167] EXT4-fs (mmcblk0p1): mounted filesystem with ordered data mode. Opts: (null)
[    7.865959] systemd[1]: systemd 241 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN -PCRE2 default-hierarchy=hybrid)
[    7.866701] systemd[1]: Detected architecture arm.
[    7.895489] systemd[1]: Set hostname to <pbgl00a20125>.
[    9.368840] systemd[1]: Created slice system-serial\x2dgetty.slice.
[    9.370363] systemd[1]: Listening on Syslog Socket.
[    9.371435] systemd[1]: Listening on udev Control Socket.
[    9.373145] systemd[1]: Listening on Journal Socket.
[    9.387810] systemd[1]: Starting Load Kernel Modules...
[    9.390941] systemd[1]: Created slice User and Session Slice.
[    9.391221] systemd[1]: Reached target Slices.
[   10.919057] EXT4-fs (mmcblk0p1): re-mounted. Opts: errors=remount-ro
[   11.388643] systemd-journald[651]: Received request to flush runtime journal from PID 1
[   21.565726] using random self ethernet address
[   21.565745] using random host ethernet address
[   21.950653] Mass Storage Function, version: 2009/09/11
[   21.950676] LUN: removable file: (no medium)
[   22.307648] using random self ethernet address
[   22.307666] using random host ethernet address
[   22.600650] usb0: HOST MAC 98:84:e3:95:cc:f1
[   22.601055] usb0: MAC 98:84:e3:95:cc:f0
[   22.614084] usb1: HOST MAC 98:84:e3:95:cc:f3
[   22.614500] usb1: MAC 98:84:e3:95:cc:f4
[   22.850388] IPv6: ADDRCONF(NETDEV_UP): usb0: link is not ready
[   23.057152] IPv6: ADDRCONF(NETDEV_UP): usb1: link is not ready
[   23.091073] configfs-gadget gadget: high-speed config #1: c
[   23.091889] IPv6: ADDRCONF(NETDEV_CHANGE): usb0: link becomes ready
[   23.096492] IPv6: ADDRCONF(NETDEV_CHANGE): usb1: link becomes ready
[   33.472737] mma8452 2-001c: registering fsl,mma8453 accelerometer; ID 0x3a
[   52.717490] remoteproc remoteproc0: wkup_m3 is available
[   52.729624] remoteproc remoteproc0: powering up wkup_m3
[   52.729656] remoteproc remoteproc0: Booting fw image am335x-pm-firmware.elf, size 217168
[   52.729901] remoteproc remoteproc0: remote processor wkup_m3 is now up
[   52.729927] wkup_m3_ipc 44e11324.wkup_m3_ipc: CM3 Firmware Version = 0x193
[   52.790728] leds_pwm techlab_rgb: unable to request PWM for techlab::blue: -16
[   52.890155] PM: bootloader does not support rtc-only!
[   53.078828] leds_pwm: probe of techlab_rgb failed with error -16
[   55.130407] remoteproc remoteproc1: 4a334000.pru is available
[   55.130596] pru-rproc 4a334000.pru: PRU rproc node pru@4a334000 probed successfully
[   55.145191] remoteproc remoteproc2: 4a338000.pru is available
[   55.145345] pru-rproc 4a338000.pru: PRU rproc node pru@4a338000 probed successfully

version.sh log:

git:/opt/scripts/:[b39ec679648a6be8f25f48bd1c9784c1fc5a0c46]
eeprom:[A335PBGL00A21834GPB50125]
model:[TI_AM335x_PocketBeagle]
dogtag:[BeagleBoard.org Debian Buster IoT Image 2020-04-06]
bootloader:[microSD]:[/dev/mmcblk0]:[U-Boot 2019.04-00002-g07d5700e21]:[location: dd MBR]
UBOOT: Booted Device-Tree:[am335x-pocketbeagle.dts]
UBOOT: Loaded Overlay:[AM335X-PRU-RPROC-4-19-TI-00A0]
UBOOT: Loaded Overlay:[BB-ADC-00A0]
UBOOT: Loaded Overlay:[PB-I2C2-ACCEL-TECHLAB-CAPE]
UBOOT: Loaded Overlay:[PB-PWM-RGB-TECHLAB-CAPE]
UBOOT: Loaded Overlay:[PB-SPI1-7SEG-TECHLAB-CAPE]
kernel:[4.19.94-ti-r42]
nodejs:[v10.15.2]
/boot/uEnv.txt Settings:
uboot_overlay_options:[enable_uboot_overlays=1]
uboot_overlay_options:[uboot_overlay_addr0=/lib/firmware/PB-I2C2-ACCEL-TECHLAB-CAPE.dtbo]
uboot_overlay_options:[uboot_overlay_addr1=/lib/firmware/PB-PWM-RGB-TECHLAB-CAPE.dtbo]
uboot_overlay_options:[uboot_overlay_addr2=/lib/firmware/PB-SPI1-7SEG-TECHLAB-CAPE.dtbo]
uboot_overlay_options:[uboot_overlay_pru=/lib/firmware/AM335X-PRU-RPROC-4-19-TI-00A0.dtbo]
uboot_overlay_options:[enable_uboot_cape_universal=1]
pkg check: to individually upgrade run: [sudo apt install --only-upgrade <pkg>]
pkg:[bb-cape-overlays]:[4.14.20200403.0-0rcnee0~buster+20200403]
pkg:[bb-wl18xx-firmware]:[1.20200322.0-0rcnee0~buster+20200322]
pkg:[kmod]:[26-1]
pkg:[librobotcontrol]:[1.0.4-git20190227.1-0rcnee0~buster+20190327]
pkg:[firmware-ti-connectivity]:[20190717-2rcnee1~buster+20200305]
groups:[debian : debian adm kmem dialout cdrom floppy audio dip video plugdev users systemd-journal bluetooth netdev i2c gpio pwm eqep remoteproc admin spi iio docker tisdk weston-launch xenomai cloud9ide]
cmdline:[console=ttyO0,115200n8 bone_capemgr.uboot_capemgr_enabled=1 root=/dev/mmcblk0p1 ro rootfstype=ext4 rootwait coherent_pool=1M net.ifnames=0 lpj=1990656 rng_core.default_quality=100 quiet]
dmesg | grep remote
[   52.717490] remoteproc remoteproc0: wkup_m3 is available
[   52.729624] remoteproc remoteproc0: powering up wkup_m3
[   52.729656] remoteproc remoteproc0: Booting fw image am335x-pm-firmware.elf, size 217168
[   52.729901] remoteproc remoteproc0: remote processor wkup_m3 is now up
[   55.130407] remoteproc remoteproc1: 4a334000.pru is available
[   55.145191] remoteproc remoteproc2: 4a338000.pru is available
dmesg | grep pru
[   55.130407] remoteproc remoteproc1: 4a334000.pru is available
[   55.130596] pru-rproc 4a334000.pru: PRU rproc node pru@4a334000 probed successfully
[   55.145191] remoteproc remoteproc2: 4a338000.pru is available
[   55.145345] pru-rproc 4a338000.pru: PRU rproc node pru@4a338000 probed successfully
dmesg | grep pinctrl-single
[    0.894381] pinctrl-single 44e10800.pinmux: 142 pins, size 568
dmesg | grep gpio-of-helper
[    0.903334] gpio-of-helper ocp:cape-universal: ready
lsusb
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
END

[jadonk]

Issue was related to the export of the pwm channels via the udev rule.

This file caused the problem: https://github.com/beagleboard/customizations/blob/a3b4eb104d4ca698fc9262114d26e4c36b7ab686/etc/udev/rules.d/81-pwm-noroot.rules

beagleboard/customizations@6377ab0 is an attempt to fix

To fix this in the future, you should be able to do do:

sudo apt update
sudo apt install bb-customizations

Or, to pull in all updates:

sudo apt update
sudo apt upgrade