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| author | Eric Yang | 2017-08-28 22:50:17 +0200 |
|---|---|---|
| committer | Alex Deucher | 2017-09-27 00:17:17 +0200 |
| commit | c9bb686b597d30935d6e05aaade51fc765d1ca5b (patch) | |
| tree | c53ff065907e674c2848ec2e75ab711c69458cff /drivers/gpu/drm/amd | |
| parent | drm/amd/display: Move dis_clk into dc_state. (diff) | |
| download | kernel-qcow2-linux-c9bb686b597d30935d6e05aaade51fc765d1ca5b.tar.gz kernel-qcow2-linux-c9bb686b597d30935d6e05aaade51fc765d1ca5b.tar.xz kernel-qcow2-linux-c9bb686b597d30935d6e05aaade51fc765d1ca5b.zip | |
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: Eric Yang <Eric.Yang2@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c index 71ff1cedbdf4..7ea274475598 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c @@ -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); |