1 files changed, 104 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_sink.c b/drivers/gpu/drm/amd/display/dc/core/dc_sink.c
new file mode 100644
index 000000000000..25fae38409ab
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_sink.c
@@ -0,0 +1,104 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dm_services.h"
+#include "dm_helpers.h"
+#include "core_types.h"
+
+/*******************************************************************************
+ * Private functions
+ ******************************************************************************/
+
+static void destruct(struct dc_sink *sink)
+{
+	if (sink->dc_container_id) {
+		kfree(sink->dc_container_id);
+		sink->dc_container_id = NULL;
+	}
+}
+
+static bool construct(struct dc_sink *sink, const struct dc_sink_init_data *init_params)
+{
+
+	struct dc_link *link = init_params->link;
+
+	if (!link)
+		return false;
+
+	sink->sink_signal = init_params->sink_signal;
+	sink->link = link;
+	sink->ctx = link->ctx;
+	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;
+
+	return true;
+}
+
+/*******************************************************************************
+ * Public functions
+ ******************************************************************************/
+
+void dc_sink_retain(struct dc_sink *sink)
+{
+	kref_get(&sink->refcount);
+}
+
+static void dc_sink_free(struct kref *kref)
+{
+	struct dc_sink *sink = container_of(kref, struct dc_sink, refcount);
+	destruct(sink);
+	kfree(sink);
+}
+
+void dc_sink_release(struct dc_sink *sink)
+{
+	kref_put(&sink->refcount, dc_sink_free);
+}
+
+struct dc_sink *dc_sink_create(const struct dc_sink_init_data *init_params)
+{
+	struct dc_sink *sink = kzalloc(sizeof(*sink), GFP_KERNEL);
+
+	if (NULL == sink)
+		goto alloc_fail;
+
+	if (false == construct(sink, init_params))
+		goto construct_fail;
+
+	kref_init(&sink->refcount);
+
+	return sink;
+
+construct_fail:
+	kfree(sink);
+
+alloc_fail:
+	return NULL;
+}
+
+/*******************************************************************************
+ * Protected functions - visible only inside of DC (not visible in DM)
+ ******************************************************************************/