diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c index 4c230f1de9a3..caee1c9f54bd 100644 --- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c @@ -921,6 +921,37 @@ void dce110_edp_power_control( } } +void dce110_edp_wait_for_T12( + struct dc_link *link) +{ + struct dc_context *ctx = link->ctx; + + if (dal_graphics_object_id_get_connector_id(link->link_enc->connector) + != CONNECTOR_ID_EDP) { + BREAK_TO_DEBUGGER(); + return; + } + + if (!link->panel_cntl) + return; + + if (!link->panel_cntl->funcs->is_panel_powered_on(link->panel_cntl) && + link->link_trace.time_stamp.edp_poweroff != 0) { + unsigned int t12_duration = 500; // Default T12 as per spec + unsigned long long current_ts = dm_get_timestamp(ctx); + unsigned long long time_since_edp_poweroff_ms = + div64_u64(dm_get_elapse_time_in_ns( + ctx, + current_ts, + link->link_trace.time_stamp.edp_poweroff), 1000000); + + t12_duration += link->local_sink->edid_caps.panel_patch.extra_t12_ms; // Add extra T12 + + if (time_since_edp_poweroff_ms < t12_duration) + msleep(t12_duration - time_since_edp_poweroff_ms); + } +} + /*todo: cloned in stream enc, fix*/ /* * @brief @@ -1628,7 +1659,7 @@ static struct dc_link *get_edp_link_with_sink( return link; } -/** +/* * When ASIC goes from VBIOS/VGA mode to driver/accelerated mode we need: * 1. Power down all DC HW blocks * 2. Disable VGA engine on all controllers |