From: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Date: Tue, 7 Aug 2018 14:43:20 -0400
Subject: drm/amd/display: make dp_ss_off optional
Git-commit: 66b198ffc934089c24f8a12436d46fdc283eaed8
Patch-mainline: v4.19-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

dp_ss_off flag doesn't need to be set, so we create a link_init
function if it is needed by an asic

Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Eric Bernstein <Eric.Bernstein@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc_link.c   |    6 +++---
 drivers/gpu/drm/amd/display/dc/inc/core_types.h |    1 +
 2 files changed, 4 insertions(+), 3 deletions(-)

--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -1039,9 +1039,6 @@ static bool construct(
 
 	link->link_id = bios->funcs->get_connector_id(bios, init_params->connector_index);
 
-	if (dc_ctx->dc_bios->integrated_info)
-		link->dp_ss_off = !dc_ctx->dc_bios->integrated_info->dp_ss_control;
-
 	if (link->link_id.type != OBJECT_TYPE_CONNECTOR) {
 		dm_error("%s: Invalid Connector ObjectID from Adapter Service for connector index:%d! type %d expected %d\n",
 			 __func__, init_params->connector_index,
@@ -1049,6 +1046,9 @@ static bool construct(
 		goto create_fail;
 	}
 
+	if (link->dc->res_pool->funcs->link_init)
+		link->dc->res_pool->funcs->link_init(link);
+
 	hpd_gpio = get_hpd_gpio(link->ctx->dc_bios, link->link_id, link->ctx->gpio_service);
 
 	if (hpd_gpio != NULL)
--- a/drivers/gpu/drm/amd/display/dc/inc/core_types.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/core_types.h
@@ -92,6 +92,7 @@ struct resource_context;
 
 struct resource_funcs {
 	void (*destroy)(struct resource_pool **pool);
+	void (*link_init)(struct dc_link *link);
 	struct link_encoder *(*link_enc_create)(
 			const struct encoder_init_data *init);