diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c index d53f8b39699b..83685310a391 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c @@ -813,6 +813,15 @@ bool dcn30_apply_idle_power_optimizations(struct dc *dc, bool enable) (100LL + dc->debug.mall_additional_timer_percent) + denom - 1), denom) - 64LL; + /* In some cases the stutter period is really big (tiny modes) in these + * cases MALL cant be enabled, So skip these cases to avoid a ASSERT() + * + * We can check if stutter_period is more than 1/10th the frame time to + * consider if we can actually meet the range of hysteresis timer + */ + if (stutter_period > 100000/refresh_hz) + return false; + /* scale should be increased until it fits into 6 bits */ while (tmr_delay & ~0x3F) { tmr_scale++; |