Raspberry Pi 3 Model B+ hangs in vc4_hdmi_runtime_resume()

[Stefan Wahren]

Hi Marc,

Am 26.09.22 um 12:21 schrieb Marc Kleine-Budde:
> On 22.09.2022 17:06:00, Maxime Ripard wrote:
>>> I'm on a Raspberry Pi 3 Model B+ running current Debian testing ARM64,
>>> using Debian's v5.19 kernel (Debian's v5.18 was working flawless).
>>>
>>> | [    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
>>> | [    0.000000] Linux version 5.19.0-1-arm64 (debian-kernel at lists.debian.org) (gcc-11 (Debian 11.3.0-5) 11.3.0, GNU ld (GNU Binutils for Debian) 2.38.90.20220713) #1 SMP Debian 5.19.6-1 (2022-0
>>> 9-01)
>>> | [    0.000000] Machine model: Raspberry Pi 3 Model B+
>>> | [    3.747500] raspberrypi-firmware soc:firmware: Attached to firmware from 2022-03-24T13:21:11
>>>
>>> As soon a the vc4 module is loaded the following warnings hits 4
>>> times, then the machine stops.
> [...]
>
>> The warning itself is fixed, both upstream and in stable (5.19.7).
> Ok. Debian is using 5.19.6
>
>> It shouldn't have any relation to the hang though. Can you share your
>> setup?
> - config.txt:
>
> -------->8-------->8-------->8-------->8--------
> gpu_mem=16
> disable_splash=1
>
> arm_64bit=1
> enable_uart=1
> uart_2ndstage=1
>
> os_prefix=/u-boot/
>
> [pi3]
> force_turbo=1
> -------->8-------->8-------->8-------->8--------
>
> - Raspberry Pi 3 Model B+
> - no HDMI connected

Thanks

Does it mean, the issue only occurs without HDMI connected?

If you didn't test with HDMI yet, could you please do?

> - firmware 2022-03-24T13:21:11
>    which boot u-boot:
> - u-boot 2022.04+dfsg-2+b1 (Debian testing)
>    I'm using the "/usr/lib/u-boot/rpi_3/u-boot.bin"
>    u-boot start:
> - Linux version 5.19.0-1-arm64 (debian-kernel at lists.debian.org)
>    kernel and dtb are unmodified Debian's linux-image-5.19.0-1-arm64
>    $ ls -l /boot/dtbs/5.19.0-1-arm64/broadcom/bcm2837-rpi-3-b-plus.dtb
>    -rwxr-xr-x 1 root root 15351 Sep 22 09:52 /boot/dtbs/5.19.0-1-arm64/broadcom/bcm2837-rpi-3-b-plus.dtb*
>    $ md5sum /boot/dtbs/5.19.0-1-arm64/broadcom/bcm2837-rpi-3-b-plus.dtb
>    4a9c76c3c4dcafac7d69872ee88ac5fc  /boot/dtbs/5.19.0-1-arm64/broadcom/bcm2837-rpi-3-b-plus.dtb
> - currently, I've blacklisted vc4, but systems hangs after modprobe vc4
>    (4x backtrace, then hang)
>
> regards,
> Marc
>
>
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