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drm/amd/display: S3 Resume time increase after decoupling DPMS from fast boot

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[Why]
We incorrectly began powering down the display at boot/resume whenever
fast boot was not possible. This should not be done in the case where there
exists a stream for the eDP since this implies that we want to turn it on.

[How]
Add check for eDP stream to decide whether to power off edp.

Signed-off-by: SivapiriyanKumarasamy <sivapiriyan.kumarasamy@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Acked-by: Reza Amini <Reza.Amini@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
SivapiriyanKumarasamy 2019-05-28 16:36:42 -04:00 committed by Alex Deucher
parent c08264876f
commit 3de5aa81c5
1 changed files with 26 additions and 9 deletions
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33
drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
View File

@ -1507,6 +1507,18 @@ static void disable_vga_and_power_gate_all_controllers(
}
}
static struct dc_stream_state *get_edp_stream(struct dc_state *context)
{
int i;
for (i = 0; i < context->stream_count; i++) {
if (context->streams[i]->signal == SIGNAL_TYPE_EDP)
return context->streams[i];
}
return NULL;
}
static struct dc_link *get_edp_link(struct dc *dc)
{
int i;
@ -1550,12 +1562,16 @@ void dce110_enable_accelerated_mode(struct dc *dc, struct dc_state *context)
int i;
struct dc_link *edp_link_with_sink = get_edp_link_with_sink(dc, context);
struct dc_link *edp_link = get_edp_link(dc);
struct dc_stream_state *edp_stream = NULL;
bool can_apply_edp_fast_boot = false;
bool can_apply_seamless_boot = false;
bool keep_edp_vdd_on = false;
if (dc->hwss.init_pipes)
dc->hwss.init_pipes(dc, context);
edp_stream = get_edp_stream(context);
// Check fastboot support, disable on DCE8 because of blank screens
if (edp_link && dc->ctx->dce_version != DCE_VERSION_8_0 &&
dc->ctx->dce_version != DCE_VERSION_8_1 &&
@ -1563,15 +1579,16 @@ void dce110_enable_accelerated_mode(struct dc *dc, struct dc_state *context)
// enable fastboot if backend is enabled on eDP
if (edp_link->link_enc->funcs->is_dig_enabled(edp_link->link_enc)) {
/* Find eDP stream and set optimization flag */
for (i = 0; i < context->stream_count; i++) {
if (context->streams[i]->signal == SIGNAL_TYPE_EDP) {
context->streams[i]->apply_edp_fast_boot_optimization = true;
/* Set optimization flag on eDP stream*/
if (edp_stream) {
edp_stream->apply_edp_fast_boot_optimization = true;
can_apply_edp_fast_boot = true;
break;
}
}
}
// We are trying to enable eDP, don't power down VDD
if (edp_stream)
keep_edp_vdd_on = true;
}
// Check seamless boot support
@ -1586,14 +1603,14 @@ void dce110_enable_accelerated_mode(struct dc *dc, struct dc_state *context)
* it should get turned off
*/
if (!can_apply_edp_fast_boot && !can_apply_seamless_boot) {
if (edp_link_with_sink) {
if (edp_link_with_sink && !keep_edp_vdd_on) {
/*turn off backlight before DP_blank and encoder powered down*/
dc->hwss.edp_backlight_control(edp_link_with_sink, false);
}
/*resume from S3, no vbios posting, no need to power down again*/
power_down_all_hw_blocks(dc);
disable_vga_and_power_gate_all_controllers(dc);
if (edp_link_with_sink)
if (edp_link_with_sink && !keep_edp_vdd_on)
dc->hwss.edp_power_control(edp_link_with_sink, false);
}
bios_set_scratch_acc_mode_change(dc->ctx->dc_bios);