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 | 29 |
1 files changed, 28 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 e8df50f..db2d15d 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 @@ -849,6 +849,28 @@ void hwss_edp_power_control( if (power_up != is_panel_powered_on(hwseq)) { /* Send VBIOS command to prompt eDP panel power */ + if (power_up) { + unsigned long long current_ts = dm_get_timestamp(ctx); + unsigned long long duration_in_ms = + dm_get_elapse_time_in_ns( + ctx, + current_ts, + link->link_trace.time_stamp.edp_poweroff) / 1000000; + unsigned long long wait_time_ms = 0; + + /* max 500ms from LCDVDD off to on */ + if (link->link_trace.time_stamp.edp_poweroff == 0) + wait_time_ms = 500; + else if (duration_in_ms < 500) + wait_time_ms = 500 - duration_in_ms; + + if (wait_time_ms) { + msleep(wait_time_ms); + dm_output_to_console("%s: wait %lld ms to power on eDP.\n", + __func__, wait_time_ms); + } + + } DC_LOG_HW_RESUME_S3( "%s: Panel Power action: %s\n", @@ -862,9 +884,14 @@ void hwss_edp_power_control( cntl.coherent = false; cntl.lanes_number = LANE_COUNT_FOUR; cntl.hpd_sel = link->link_enc->hpd_source; - bp_result = link_transmitter_control(ctx->dc_bios, &cntl); + if (!power_up) + /*save driver power off time stamp*/ + link->link_trace.time_stamp.edp_poweroff = dm_get_timestamp(ctx); + else + link->link_trace.time_stamp.edp_poweron = dm_get_timestamp(ctx); + if (bp_result != BP_RESULT_OK) DC_LOG_ERROR( "%s: Panel Power bp_result: %d\n", |
