Fwd: s2idle not working

[shahul hameed]

Hi

I am facing below issue. Can any one please help me to resolve it.

Regards,
Sk shahul

---------- Forwarded message ---------
From: shahul hameed <shahulhameed.481 at gmail.com>
Date: Wed, Feb 20, 2019, 3:13 PM
Subject: s2idle not working
To: <shirish.s at amd.com>


Hi Shirish

I am porting Android_N and keenel 4.19.2 to Ryzen platform. Graphic card is
gfx9.
Porting is done successfully. Now i am working on suspend/resume.
Suspend/resume is working fine in deep mode.
But suspend/resume is not working in s2idle (Suspend to idle) mode.

during resume i found error in gpu driver.

[  105.862161] [drm:gfx_v9_0_hw_init [amdgpu]] *ERROR* KCQ enable failed
(scratch(0xC040)=0xCAFEDEAD)
[  105.862187] [drm:amdgpu_device_ip_resume_phase2 [amdgpu]] *ERROR* resume
of IP block <gfx_v9_0> failed -22
[  105.862210] [drm:amdgpu_device_resume [amdgpu]] *ERROR*
amdgpu_device_ip_resume failed (-22).
[  105.862215] dpm_run_callback(): pci_pm_resume+0x0/0xd6 returns -22
[  105.862345] PM: Device 0000:03:00.0 failed to resume async: error -22

same issue is reproduced with ubuntu16.04.

Can you please help me to resolve this issue.
Thanks in Advance,
Regards,
Sk shahul.
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