IMX8MP Andorid 13 HDMI Hotplug

[Shanga]

Hi

We are using IM8XMP Android  based on nxp source Android 13.0.0_2.2.0 (L6.1.36_2.1.0 BSP)

On the base BSP we have only updated DDR timing in Uboot.

We have 2gb and 4gb variant.We have updated the DDR timing and generated Image

For 4gb variant when we do HDMI hotplug (Detach or attach) board works fine.

For 2gb variant when we do HDMI hotplug (Detach or attach ) board reboot.

On Serial log  we see  dma and memeroy related issue. please advice how to resolve this .

[   85.691117][  T509] Hardware name: NXP i.MX8MPlus EVK board (DT)

[   85.798678][  T509] Call trace:
[   85.801821][  T509]  __memset+0x16c/0x188
[   85.805840][  T509]  dma_buf_release+0x60/0xc0
[   85.810294][  T509]  __dentry_kill+0x1a0/0x28c
[   85.814747][  T509]  dentry_kill+0xbc/0x108
[   85.818936][  T509]  dput+0x9c/0x104
[   85.822515][  T509]  __fput+0x180/0x280
[   85.826354][  T509]  ____fput+0x10/0x20
[   85.830192][  T509]  task_work_run+0xcc/0xf4
[   85.834468][  T509]  do_notify_resume+0x28c/0x328
[   85.839177][  T509]  el0_svc+0x5c/0xa4
[   85.842931][  T509]  el0t_64_sync_handler+0x68/0xb4
[   85.847814][  T509]  el0t_64_sync+0x1a0/0x1a4
[   85.852177][  T509] Code: 91010108 54ffff4a 8b040108 cb050042 (d50b7428) 
[   85.858969][  T509] ---[ end trace 0000000000000000 ]---

[   85.876246][  T509] Kernel panic - not syncing: Oops: Fatal exception
[   85.882694][  T509] SMP: stopping secondary CPUs
[   85.887605][  T509] Kernel Offset: disabled
[   85.891789][  T509] CPU features: 0x00,00000000,00800184,0000421b
[   85.897884][  T509] Memory Limit: none

We have attached the Log for the reference .


IMX8MPLUS 

[Bio_TICFSL]

Hello,

We recommend to have 6GB when using android and MX8MP since the kernel works unstable, so this issue is due to this.

Regards