Commit c9bb686b authored by Eric Yang's avatar Eric Yang Committed by Alex Deucher

drm/amd/display: Fix time out on boot

On boot, hubp 0 is powergated during enable accel mode, so we time out
when we try to blank in undo wa.

Fix: Check power gate status before set blank
Signed-off-by: default avatarEric Yang <Eric.Yang2@amd.com>
Reviewed-by: default avatarHersen Wu <hersenxs.wu@amd.com>
Acked-by: default avatarHarry Wentland <Harry.Wentland@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent ab8db3e1
......@@ -780,6 +780,12 @@ static void undo_DEGVIDCN10_253_wa(struct dc *dc)
{
struct dce_hwseq *hws = dc->hwseq;
struct mem_input *mi = dc->res_pool->mis[0];
int pwr_status = 0;
REG_GET(DOMAIN0_PG_STATUS, DOMAIN0_PGFSM_PWR_STATUS, &pwr_status);
/* Don't need to blank if hubp is power gated*/
if (pwr_status == 2)
return;
mi->funcs->set_blank(mi, true);
......
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