diff options
4 files changed, 48 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c index fe29125..0229c7ed 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c @@ -43,6 +43,13 @@ unsigned long long dm_get_timestamp(struct dc_context *ctx) return timespec64_to_ns(&time); } +unsigned long long dm_get_elapse_time_in_ns(struct dc_context *ctx, + unsigned long long current_time_stamp, + unsigned long long last_time_stamp) +{ + return current_time_stamp - last_time_stamp; +} + void dm_perf_trace_timestamp(const char *func_name, unsigned int line) { } diff --git a/drivers/gpu/drm/amd/display/dc/dc_link.h b/drivers/gpu/drm/amd/display/dc/dc_link.h index fb4d9ea..eeff987 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_link.h +++ b/drivers/gpu/drm/amd/display/dc/dc_link.h @@ -51,6 +51,14 @@ struct link_mst_stream_allocation_table { struct link_mst_stream_allocation stream_allocations[MAX_CONTROLLER_NUM]; }; +struct time_stamp { + uint64_t edp_poweroff; + uint64_t edp_poweron; +}; + +struct link_trace { + struct time_stamp time_stamp; +}; /* * A link contains one or more sinks and their connected status. * The currently active signal type (HDMI, DP-SST, DP-MST) is also reported. @@ -114,6 +122,7 @@ struct dc_link { struct dc_link_status link_status; + struct link_trace link_trace; }; const struct dc_link_status *dc_link_get_status(const struct dc_link *dc_link); 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", diff --git a/drivers/gpu/drm/amd/display/dc/dm_services.h b/drivers/gpu/drm/amd/display/dc/dm_services.h index 22e7ee7..8eafe1a 100644 --- a/drivers/gpu/drm/amd/display/dc/dm_services.h +++ b/drivers/gpu/drm/amd/display/dc/dm_services.h @@ -341,6 +341,10 @@ bool dm_dmcu_set_pipe(struct dc_context *ctx, unsigned int controller_id); unsigned long long dm_get_timestamp(struct dc_context *ctx); +unsigned long long dm_get_elapse_time_in_ns(struct dc_context *ctx, + unsigned long long current_time_stamp, + unsigned long long last_time_stamp); + /* * performance tracing */ |
