For what it's worth this commit also breaks resume on my Tonga only
system so it's not specific to just Carrizo.
On 13/10/17 08:16 AM, Tom St Denis wrote:
Hi,
This commit breaks suspend/resume on my Carrizo A12-9800 system.
[root@carrizo linux2]# git bisect bad
7ae4acd21e9e264afb079e23d43bcf2238c7dbea is the first bad commit
commit 7ae4acd21e9e264afb079e23d43bcf2238c7dbea
Author: Leo (Sunpeng) Li <sunpeng...@amd.com>
Date: Thu Sep 7 17:05:38 2017 -0400
drm/amd/display: Match actual state during S3 resume.
During system suspend, we:
1. Cache a duplicate of the current DRM atomic state, which calls
hooks
to duplicate our internal states.
2. Call hooks to disable all functionalities.
3. System suspended.
During resume, we attempt to restore the cached state. However, our
interal states are now stale, since step 1 was done before step 2.
i.e. our cached state does not reflect the disabled nature of things.
This change resolves that by destroying all relevant states to reflect
the actual state during resume.
Signed-off-by: Leo (Sunpeng) Li <sunpeng...@amd.com>
Reviewed-by: Harry Wentland <harry.wentl...@amd.com>
Tom
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