Re: Raspberry Pi 3 Model B+ hangs in vc4_hdmi_runtime_resume()

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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@xxxxxxxxxxxxxxxx) (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
- 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@xxxxxxxxxxxxxxxx)
  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

-- 
Pengutronix e.K.                 | Marc Kleine-Budde           |
Embedded Linux                   | https://www.pengutronix.de  |
Vertretung West/Dortmund         | Phone: +49-231-2826-924     |
Amtsgericht Hildesheim, HRA 2686 | Fax:   +49-5121-206917-5555 |

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