ACK/Cmnt: [SRU] [J/OEM-5.14] [PATCH 0/3] Fix broken HDMI audio on AMD PRO VII after S3

[Tim Gardner]

Acked-by: Tim Gardner <tim.gardner at canonical.com>

Patch 3 is now merged upstream.

On 4/10/22 08:26, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1968475
> 
> [Impact]
> DP/HDMI audio on AMD PRO VII stops working after S3.
> 
> [Fix]
> Ensure HDA function is suspended before ASIC reset so the subsequent
> resume can be carried out successfully.
> 
> [Test]
> With the patch applied, DP/HDMI audio continues to work after S3.
> 
> [Where problems could occur]
> The suspend_noirq phase should not trigger any interrupt, so if
> amdgpu_asic_reset() somehow raised IRQ, it can break the system.
> 
> Alex Deucher (1):
>    drm/amdgpu: don't use BACO for reset in S3
> 
> Kai-Heng Feng (1):
>    drm/amdgpu: Ensure HDA function is suspended before ASIC reset
> 
> Mario Limonciello (1):
>    drm/amdgpu: don't set s3 and s0ix at the same time
> 
>   drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 24 ++++++++++++++++--------
>   drivers/gpu/drm/amd/pm/amdgpu_dpm.c     | 11 +++++++++++
>   2 files changed, 27 insertions(+), 8 deletions(-)
> 

-- 
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Tim Gardner
Canonical, Inc