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drm/amd/display: Patch for extend time to panel poweron.

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[WHY]
In eDP spec, the min duration in LCDVDD on-off-on sequence should be
500ms, some BOE panels need 700ms to pass.
[HOW]
Add patch to wait more time when eDP power on.

Signed-off-by: Hugo Hu <hugo.hu@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Hugo Hu 2018-06-15 15:49:55 -04:00 committed by Alex Deucher
parent 39a9f4d89e
commit ff58798725
2 changed files with 7 additions and 3 deletions
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1
drivers/gpu/drm/amd/display/dc/dc_types.h
View File

@ -192,6 +192,7 @@ union display_content_support {
struct dc_panel_patch {
unsigned int dppowerup_delay;
unsigned int extra_t12_ms;
};
struct dc_edid_caps {

9
drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
View File

@ -871,10 +871,13 @@ void hwss_edp_power_control(
unsigned long long wait_time_ms = 0;
/* max 500ms from LCDVDD off to on */
unsigned long long edp_poweroff_time_ms =
500 + link->local_sink->edid_caps.panel_patch.extra_t12_ms;
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;
wait_time_ms = edp_poweroff_time_ms;
else if (duration_in_ms < edp_poweroff_time_ms)
wait_time_ms = edp_poweroff_time_ms - duration_in_ms;
if (wait_time_ms) {
msleep(wait_time_ms);