From: Martin Tsai <martin.t...@amd.com>
Change-Id: Ic8ab8775d7a0df9c12ed94ec02da8b257a43a77f
Signed-off-by: Martin Tsai <martin.t...@amd.com>
Reviewed-by: Charlene Liu <charlene....@amd.com>
Acked-by: Harry Wentland <harry.wentl...@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc_link.c | 6 ++++++
drivers/gpu/drm/amd/display/dc/dc_types.h | 1 +
2 files changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
index 02e1c3b188fd..9ede0f884f15 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -1260,6 +1260,12 @@ static enum dc_status enable_link_dp(
pipe_ctx->clock_source->id,
&link_settings);
+ if (stream->sink->edid_caps.panel_patch.dppowerup_delay > 0) {
+ int delay_dp_power_up_in_ms =
stream->sink->edid_caps.panel_patch.dppowerup_delay;
+
+ msleep(delay_dp_power_up_in_ms);
+ }
+
panel_mode = dp_get_panel_mode(link);
dpcd_configure_panel_mode(link, panel_mode);
diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h
b/drivers/gpu/drm/amd/display/dc/dc_types.h
index fbbe92f7a33a..aa5b90e6beb7 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_types.h
@@ -195,6 +195,7 @@ union display_content_support {
struct dc_panel_patch {
unsigned int disconnect_delay;
+ unsigned int dppowerup_delay;
};
struct dc_edid_caps {
--
2.14.1
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