drm/amd/display: Support for DMUB HPD interrupt handling

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[WHY]
To add support for HPD interrupt handling from DMUB.
HPD interrupt could be triggered from outbox1 from DMUB

[HOW]
1) Use queue_work to handle hpd task from outbox1

2) Add handle_hpd_irq_helper to share interrupt handling code
between legacy and DMUB HPD from outbox1

3) Added DMUB HPD handling in dmub_srv_stat_get_notification().
HPD handling callback function and wake up the DMUB thread.

Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Jude Shih <shenshih@amd.com>
Tested-by: Daniel Wheeler <Daniel.Wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Jude Shih 2021-07-25 13:55:02 +08:00 • committed by Alex Deucher

parent b5ce6fe812

commit e27c41d5b0

2 changed files with 203 additions and 8 deletions

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171

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

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40

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h

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