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drm/amd/display: disable eDP backlight for extend monitor only reboot use case.

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Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Yongqiang Sun 2017-12-18 16:59:44 -05:00 committed by Alex Deucher
parent 146a9f6368
commit 91178796ba
1 changed files with 27 additions and 1 deletions
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28
drivers/gpu/drm/amd/display/dc/core/dc.c
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@ -649,7 +649,31 @@ bool dc_enable_stereo(
return ret;
}
static void disable_eDP_not_in_use(struct dc *dc, struct dc_state *context)
{
int i;
struct dc_link *link = NULL;
/* check if eDP panel is suppose to be set mode, if yes, no need to disable */
for (i = 0; i < context->stream_count; i++) {
if (context->streams[i]->signal == SIGNAL_TYPE_EDP)
return;
}
/* check if there is an eDP panel not in use */
for (i = 0; i < dc->link_count; i++) {
if (dc->links[i]->local_sink &&
dc->links[i]->local_sink->sink_signal == SIGNAL_TYPE_EDP) {
link = dc->links[i];
break;
}
}
if (link) {
dc->hwss.edp_backlight_control(link, false);
dc->hwss.edp_power_control(link, false);
}
}
/*
* Applies given context to HW and copy it into current context.
* It's up to the user to release the src context afterwards.
@ -667,8 +691,10 @@ static enum dc_status dc_commit_state_no_check(struct dc *dc, struct dc_state *c
for (i = 0; i < context->stream_count; i++)
dc_streams[i] = context->streams[i];
if (!dcb->funcs->is_accelerated_mode(dcb))
if (!dcb->funcs->is_accelerated_mode(dcb)) {
dc->hwss.enable_accelerated_mode(dc);
disable_eDP_not_in_use(dc, context);
}
/* re-program planes for existing stream, in case we need to
* free up plane resource for later use