drm/amd/display: Add global fgcg function prototype to DCCG

[Why & How]
Add the ability to enable/disable global fine grain clock gating within DCCG.

Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Signed-off-by: Leo Chen <leo.chen@amd.com>
Signed-off-by: Matthew Stewart <matthew.stewart2@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Leo Chen 2025-12-17 19:32:45 -05:00 • committed by Alex Deucher
commit 1883b2578d