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| author | Tony Cheng | 2017-07-12 15:00:14 +0200 |
|---|---|---|
| committer | Alex Deucher | 2017-09-27 00:15:08 +0200 |
| commit | 38917a1eb2748021fc0fd2ed4fd9b7f583713916 (patch) | |
| tree | 6d1d951aa6ef8478c390f149212b87e81e9d1183 /drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c | |
| parent | drm/amd/display: fix 4k@30 with 10bit deep color and avi for BT2020 (diff) | |
| download | kernel-qcow2-linux-38917a1eb2748021fc0fd2ed4fd9b7f583713916.tar.gz kernel-qcow2-linux-38917a1eb2748021fc0fd2ed4fd9b7f583713916.tar.xz kernel-qcow2-linux-38917a1eb2748021fc0fd2ed4fd9b7f583713916.zip | |
drm/amd/display: ensure OTG is locked before proceeding
also remove tg lock at init_hw as not all OTG is running
Signed-off-by: Tony Cheng <tony.cheng@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@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/display/dc/dcn10/dcn10_timing_generator.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c index e1899f5fb083..12d7f3570cfa 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c @@ -573,6 +573,10 @@ static void tgn10_lock(struct timing_generator *tg) OTG_MASTER_UPDATE_LOCK_SEL, tg->inst); REG_SET(OTG_MASTER_UPDATE_LOCK, 0, OTG_MASTER_UPDATE_LOCK, 1); + + REG_WAIT(OTG_MASTER_UPDATE_LOCK, + UPDATE_LOCK_STATUS, 1, + 1, 100); } static void tgn10_unlock(struct timing_generator *tg) |