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drm/amd/display: write dpcd 0x600 to 2 for DP/eDP when powerdown

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Signed-off-by: Charlene Liu <charlene.liu@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Charlene Liu 2017-08-21 12:59:41 -04:00 committed by Alex Deucher
parent 7fb77c51f3
commit a0c38ebaa1
3 changed files with 11 additions and 2 deletions
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2
drivers/gpu/drm/amd/display/dc/core/dc_link.c
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@ -1977,7 +1977,7 @@ bool dc_link_setup_psr(struct dc_link *link,
#if defined(CONFIG_DRM_AMD_DC_DCN1_0)
/*skip power down the single pipe since it blocks the cstate*/
if (ASIC_REV_IS_RAVEN(link->ctx->asic_id.hw_internal_rev))
psr_context->psr_level.bits.SKIP_SINGLE_OTG_DISABLE = false;
psr_context->psr_level.bits.SKIP_CRTC_DISABLE = true;
#endif
/* SMU will perform additional powerdown sequence.

10
drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
View File

@ -1147,8 +1147,16 @@ static enum dc_status apply_single_controller_ctx_to_hw(
static void power_down_encoders(struct dc *dc)
{
int i;
enum connector_id connector_id;
for (i = 0; i < dc->link_count; i++) {
connector_id = dal_graphics_object_id_get_connector_id(dc->links[i]->link_id);
if ((connector_id == CONNECTOR_ID_DISPLAY_PORT) ||
(connector_id == CONNECTOR_ID_EDP)) {
if (!dc->links[i]->wa_flags.dp_keep_receiver_powered)
dp_receiver_power_ctrl(dc->links[i], false);
}
dc->links[i]->link_enc->funcs->disable_output(
dc->links[i]->link_enc, SIGNAL_TYPE_NONE);
}

1
drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.h
View File

@ -67,5 +67,6 @@ void dce110_fill_display_configs(
uint32_t dce110_get_min_vblank_time_us(const struct validate_context *context);
void dp_receiver_power_ctrl(struct dc_link *link, bool on);
#endif /* __DC_HWSS_DCE110_H__ */