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From 5a00ad09adddcab065c1006de3aa3ec034b59a5d Mon Sep 17 00:00:00 2001
From: Alvin lee <alvin.lee3@amd.com>
Date: Fri, 18 May 2018 14:14:38 -0400
Subject: [PATCH 4741/5725] drm/amd/display: create sink_id in dc_sink
structure to idenitify all sinks
Signed-off-by: Alvin lee <alvin.lee3@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 1 +
drivers/gpu/drm/amd/display/dc/core/dc_sink.c | 4 ++++
drivers/gpu/drm/amd/display/dc/dc.h | 6 +++++-
drivers/gpu/drm/amd/display/dc/dc_types.h | 1 +
4 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 7da1e88..16ebdc1 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -479,6 +479,7 @@ static bool construct(struct dc *dc,
dc_ctx->driver_context = init_params->driver;
dc_ctx->dc = dc;
dc_ctx->asic_id = init_params->asic_id;
+ dc_ctx->dc_sink_id_count = 0;
dc->ctx = dc_ctx;
dc->current_state = dc_create_state();
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_sink.c b/drivers/gpu/drm/amd/display/dc/core/dc_sink.c
index 25fae38..9971b51 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_sink.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_sink.c
@@ -53,6 +53,10 @@ static bool construct(struct dc_sink *sink, const struct dc_sink_init_data *init
sink->dongle_max_pix_clk = init_params->dongle_max_pix_clk;
sink->converter_disable_audio = init_params->converter_disable_audio;
sink->dc_container_id = NULL;
+ sink->sink_id = init_params->link->ctx->dc_sink_id_count;
+ // increment dc_sink_id_count because we don't want two sinks with same ID
+ // unless they are actually the same
+ init_params->link->ctx->dc_sink_id_count++;
return true;
}
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index 7cd4d5e..56c1e2b 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -679,9 +679,13 @@ struct dc_sink {
struct dc_link *link;
struct dc_context *ctx;
+ uint32_t sink_id;
+
/* private to dc_sink.c */
+ // refcount must be the last member in dc_sink, since we want the
+ // sink structure to be logically cloneable up to (but not including)
+ // refcount
struct kref refcount;
-
};
void dc_sink_retain(struct dc_sink *sink);
diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h
index 40d620f..9467249 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_types.h
@@ -92,6 +92,7 @@ struct dc_context {
bool created_bios;
struct gpio_service *gpio_service;
struct i2caux *i2caux;
+ uint32_t dc_sink_id_count;
uint64_t fbc_gpu_addr;
};
--
2.7.4
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