Leo Li 7fb363c575
drm/amd/display: Let drm_crtc_vblank_on/off manage interrupts ...
[Why]
We manage interrupts for CRTCs in two places:
1. In manage_dm_interrupts(), when CRTC get enabled or disabled
2. When drm_vblank_get/put() starts or kills the vblank counter, calling
into amdgpu_dm_crtc_set_vblank()
The interrupts managed by these twp places should be identical.
[How]
Since manage_dm_interrupts() already use drm_crtc_vblank_on/off(), just
move all CRTC interrupt management into amdgpu_dm_crtc_set_vblank().
This has the added benefit of disabling all CRTC and HUBP interrupts
when there are no vblank requestors.
Note that there is a TODO item - unchanged from when it was first
introduced - to properly identify the HUBP instance from the OTG
instance, rather than just assume direct mapping.
Signed-off-by: Leo Li <sunpeng.li@amd.com >
Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com >
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com >
Signed-off-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com >
Signed-off-by: Alex Deucher <alexander.deucher@amd.com >
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7fb363c575