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AM67: rpi-7inch-dsi panel light up issue

Will Tsai
Prodigy 130 points
Part Number: AM67


Tool/software:

Hi 

I was working on the am67 light up rpi-7inch dsi panel.

I'm using the sdk version 11 and as previous question experence. 

After i flash wic img in the sd card, and i set the below overlay in the nEnv.txt

name_overlays=ti/k3-j722s-evm-dsi-rpi-7inch-panel.dtbo

The kmsprint didn't show content 

root@am67-sk:~# kmsprint --device=/dev/dri/card0
root@am67-sk:~# kmsprint --device=/dev/dri/card1
terminate called after throwing an instance of '[ 51.959875] kauditd_printk_skb: 5 callbacks suppressed
std::invalid_argument'
what(): No such file or directory ope[ 51.959892] audit: type=1701 audit(1736361652.184:20): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=1182 comm="kmsprint" exe="/usr/bin/kmsprint" sig=6 res=1
ning device /dev/dri/card1
[ 51.992277] audit: type=1334 audit(1736361652.216:21): prog-id=20 op=LOAD
[ 51.999156] audit: type=1334 audit(1736361652.220:22): prog-id=21 op=LOAD
[ 52.006055] audit: type=1334 audit(1736361652.228:23): prog-id=22 op=LOAD
Aborted (core dumped)
root@am67-sk:~# kmstest --device=/dev/dri/card0
press enter to exit
root@am67-sk:~# [ 52.287461] audit: type=1334 audit(1736361652.512:24): prog-id=22 op=UNLOAD
[ 52.294480] audit: type=1334 audit(1736361652.512:25): prog-id=21 op=UNLOAD
[ 52.301461] audit: type=1334 audit(1736361652.512:26): prog-id=20 op=UNLOAD

root@am67-sk:~#

Could you tell me what did i missing?

Thx

Will

  • 0
    TI__Genius 10200 points

    Hi,
    How many cards do you see in /dev/dri/card* ?
    Have you made any kernel level modifications or is it the default wic image?
    What is the output to:

    dmesg | grep -e dss -e dsi
ls -l /dev/dri/by-path/

  • 0 in reply to Divyansh Mittal
    TI__Prodigy 130 points

    root@am67-sk:~# dmesg | grep -e dss -e dsi
    [ 0.412664] /bus@f0000/i2c@20010000/bridge-hdmi@3b: Fixed dependency cycle(s) with /bus@f0000/dss@30220000
    root@am67-sk:~# dmesg | grep -e dss -e dsi
    [ 0.412664] /bus@f0000/i2c@20010000/bridge-hdmi@3b: Fixed dependency cycle(s) with /bus@f0000/dss@30220000
    [ 0.422676] /bus@f0000/dss@30220000: Fixed dependency cycle(s) with /bus@f0000/i2c@20010000/bridge-hdmi@3b
    [ 0.432562] /bus@f0000/dss@30220000: Fixed dependency cycle(s) with /bus@f0000/dsi@30500000
    [ 0.441113] /bus@f0000/dsi@30500000: Fixed dependency cycle(s) with /bus@f0000/dsi@30500000/bridge@0
    [ 0.450460] /bus@f0000/dsi@30500000: Fixed dependency cycle(s) with /bus@f0000/dss@30220000
    [ 0.459012] /bus@f0000/dsi@30500000/bridge@0: Fixed dependency cycle(s) with /bus@f0000/dsi@30500000
    [ 0.468346] /bus@f0000/dsi@30500000/bridge@0: Fixed dependency cycle(s) with /panel0
    [ 0.482014] /bus@f0000/i2c@20010000/bridge-hdmi@3b: Fixed dependency cycle(s) with /bus@f0000/dss@30220000
    [ 0.494433] /bus@f0000/i2c@20010000/bridge-hdmi@3b: Fixed dependency cycle(s) with /bus@f0000/dss@30220000
    [ 0.504379] /bus@f0000/dss@30220000: Fixed dependency cycle(s) with /bus@f0000/i2c@20010000/bridge-hdmi@3b
    [ 0.514273] /bus@f0000/dss@30220000: Fixed dependency cycle(s) with /bus@f0000/dsi@30500000
    [ 0.523021] /bus@f0000/dss@30220000: Fixed dependency cycle(s) with /bus@f0000/dsi@30500000
    [ 0.531612] /bus@f0000/dsi@30500000: Fixed dependency cycle(s) with /bus@f0000/dsi@30500000/bridge@0
    [ 0.540970] /bus@f0000/dsi@30500000: Fixed dependency cycle(s) with /bus@f0000/dss@30220000
    [ 0.549618] /bus@f0000/dsi@30500000/bridge@0: Fixed dependency cycle(s) with /bus@f0000/dsi@30500000
    [ 0.558962] /bus@f0000/dsi@30500000/bridge@0: Fixed dependency cycle(s) with /panel0
    [ 1.305873] /bus@f0000/dss@30220000: Fixed dependency cycle(s) with /bus@f0000/i2c@20010000/bridge-hdmi@3b
    [ 1.325028] /bus@f0000/i2c@20010000/bridge-hdmi@3b: Fixed dependency cycle(s) with /bus@f0000/dss@30220000
    [ 9.849730] /bus@f0000/dsi@30500000: Fixed dependency cycle(s) with /bus@f0000/dsi@30500000/bridge@0
    [ 9.859420] /panel0: Fixed dependency cycle(s) with /bus@f0000/dsi@30500000/bridge@0
    [ 9.867563] /bus@f0000/dsi@30500000/bridge@0: Fixed dependency cycle(s) with /bus@f0000/dsi@30500000
    [ 9.878155] /bus@f0000/dsi@30500000/bridge@0: Fixed dependency cycle(s) with /panel0
    [ 23.279222] mipi-dsi 30500000.dsi.0: deferred probe pending: mipi-dsi: supplier bridge-regulator not ready
    [ 23.313299] platform 30220000.dss: deferred probe pending: tidss: port 0 probe failed
    root@am67-sk:~# ls -l /dev/dri/by-path/
    total 0
    lrwxrwxrwx 1 root root 8 Jan 8 18:25 platform-fd80000.gpu-card -> ../card0
    lrwxrwxrwx 1 root root 13 Jan 8 18:25 platform-fd80000.gpu-render -> ../renderD128
    root@am67-sk:~#

  • 0 in reply to Will Tsai
    TI__Prodigy 130 points

    I'm sure the power supply is workable bc when i disconnect the power from am67 the micro b can output voltage though the dsi lane and power on am67

  • 0 in reply to Divyansh Mittal
    TI__Prodigy 130 points

    for the regulator here is the information


    cat /sys/kernel/debug/regulator/regulator_summary
    regulator use open bypass opmode voltage current min max
    ---------------------------------------------------------------------------------------
    regulator-dummy 6 5 0 unknown 0mV 0mA 0mV 0mV
    4-0071-vdd 1 0mA 0mV 0mV
    4-0070-vdd 1 0mA 0mV 0mV
    2-0023-vcc 1 0mA 0mV 0mV
    vcc1v8_io_buck1 1 0 0 unknown 1800mV 0mA 1800mV 1800mV
    vcc1v1_ddr_buck2 1 0 0 unknown 1100mV 0mA 1100mV 1100mV
    vmain_pd 2 1 0 unknown 5000mV 0mA 5000mV 5000mV
    vsys_5v0 2 1 0 unknown 5000mV 0mA 5000mV 5000mV
    tlv71033 2 1 0 unknown 1800mV 0mA 1800mV 3300mV
    fa00000.mmc-vqmmc 1 0mA 1800mV 1950mV
    vsys_io_3v3 6 8 0 unknown 3300mV 0mA 3300mV 3300mV
    2-001b-DRVDD 0 0mA 0mV 0mV
    2-001b-AVDD 0 0mA 0mV 0mV
    2-001b-IOVDD 0 0mA 0mV 0mV
    vcc0v85_ram_buck3 1 0 0 unknown 850mV 0mA 850mV 850mV
    vcc0v75_ioret_buck4 1 0 0 unknown 750mV 0mA 750mV 750mV
    vdda1v8_pll_ldo1 1 0 0 unknown 1800mV 0mA 1800mV 1800mV
    dvdd3v3_ldo2 1 0 0 unknown 3300mV 0mA 3300mV 3300mV
    vdd1v85_phy_ldo3 1 0 0 unknown 1800mV 0mA 1800mV 1800mV
    vsys_io_1v8 1 1 0 unknown 1800mV 0mA 1800mV 1800mV
    2-001b-DVDD 0 0mA 0mV 0mV
    vsys_io_1v2 1 0 0 unknown 1200mV 0mA 1200mV 1200mV
    vdd_mmc1 1 1 0 unknown 3300mV 0mA 3300mV 3300mV
    fa00000.mmc-vmmc 1 0mA 3300mV 3400mV

  • 0 in reply to Divyansh Mittal
    TI__Prodigy 130 points

    it's a defulat wic image

  • 0 in reply to Will Tsai
    TI__Genius 10200 points

    Is the RPi panel connected and powered on before booting the board?