From: Roman Li <Roman.Li@xxxxxxx>
Power-down panel on disale only if sink exists
otherwise it fails edid read during init sequence
Change-Id: Iefb7f16f7d465ad81ae83940237bc6a896429b29
Signed-off-by: Roman Li <Roman.Li at amd.com>
Reviewed-by: Andrey Grodzovsky <Andrey.Grodzovsky at amd.com>
Acked-by: Harry Wentland <Harry.Wentland at amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c
index aac2420caefa..5bdcd5067116 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c
@@ -114,7 +114,9 @@ void dp_disable_link_phy(struct dc_link *link, enum signal_type signal)
if (signal == SIGNAL_TYPE_EDP) {
link->link_enc->funcs->backlight_control(link->link_enc, false);
- link->link_enc->funcs->power_control(link->link_enc, false);
+ if (link->dpcd_sink_count)
+ link->link_enc->funcs->power_control(link->link_enc,
+ false);
}
link->link_enc->funcs->disable_output(link->link_enc, signal);
--
2.11.0
