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From 8d6b04d3042b8beebddb884e4c9396145d300ac1 Mon Sep 17 00:00:00 2001
From: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Date: Tue, 24 Nov 2015 17:44:52 -0500
Subject: [PATCH 0826/1050] drm/amd/dal: Assign stream encoder in MST use case.
Change-Id: I984079ede44f9f4a12d8690627221245a918a2bd
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
---
drivers/gpu/drm/amd/dal/dc/dce110/dce110_resource.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/dal/dc/dce110/dce110_resource.c b/drivers/gpu/drm/amd/dal/dc/dce110/dce110_resource.c
index d2594a9..fb3f5be 100644
--- a/drivers/gpu/drm/amd/dal/dc/dce110/dce110_resource.c
+++ b/drivers/gpu/drm/amd/dal/dc/dce110/dce110_resource.c
@@ -784,17 +784,25 @@ static struct stream_encoder *find_first_free_match_stream_enc_for_link(
struct core_link *link)
{
uint8_t i;
+ int8_t j = -1;
for (i = 0; i < res_ctx->pool.stream_enc_count; i++) {
if (!res_ctx->is_stream_enc_acquired[i] &&
- res_ctx->pool.stream_enc[i]) {
+ res_ctx->pool.stream_enc[i]) {
+ /* Store first available for MST second display
+ * in daisy chain use case */
+ j = i;
if (res_ctx->pool.stream_enc[i]->id ==
link->link_enc->preferred_engine)
return res_ctx->pool.stream_enc[i];
}
}
- /* TODO: Handle MST*/
+ /* TODO: Handle MST properly
+ * Currently pick next available stream encoder if found*/
+ if (j >= 0 && link->public.sink[0]->sink_signal ==
+ SIGNAL_TYPE_DISPLAY_PORT_MST)
+ return res_ctx->pool.stream_enc[j];
return NULL;
}
--
1.9.1
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