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-rw-r--r--drivers/gpu/drm/amd/display/dc/dc_types.h1
-rw-r--r--drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c9
2 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h
index 946ba929c6f6..aa8e0955db48 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_types.h
@@ -233,6 +233,7 @@ struct dc_panel_patch {
unsigned int skip_scdc_overwrite;
unsigned int delay_ignore_msa;
unsigned int disable_fec;
+ unsigned int extra_t3_ms;
};
struct dc_edid_caps {
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 45c9e9027886..0603ddca7bd0 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
@@ -720,6 +720,7 @@ void dce110_edp_wait_for_hpd_ready(
struct dc_context *ctx = link->ctx;
struct graphics_object_id connector = link->link_enc->connector;
struct gpio *hpd;
+ struct dc_sink *sink = link->local_sink;
bool edp_hpd_high = false;
uint32_t time_elapsed = 0;
uint32_t timeout = power_up ?
@@ -752,6 +753,14 @@ void dce110_edp_wait_for_hpd_ready(
return;
}
+ if (sink != NULL) {
+ if (sink->edid_caps.panel_patch.extra_t3_ms > 0) {
+ int extra_t3_in_ms = sink->edid_caps.panel_patch.extra_t3_ms;
+
+ msleep(extra_t3_in_ms);
+ }
+ }
+
dal_gpio_open(hpd, GPIO_MODE_INTERRUPT);
/* wait until timeout or panel detected */