diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/5361-drm-amd-display-use-link-type-to-decide-stream-enc-a.patch')
-rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/5361-drm-amd-display-use-link-type-to-decide-stream-enc-a.patch | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/5361-drm-amd-display-use-link-type-to-decide-stream-enc-a.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/5361-drm-amd-display-use-link-type-to-decide-stream-enc-a.patch new file mode 100644 index 00000000..9a1af8ed --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/5361-drm-amd-display-use-link-type-to-decide-stream-enc-a.patch @@ -0,0 +1,40 @@ +From 4ca03f41ec0e668ec717d2e8fce7f38dae9c172f Mon Sep 17 00:00:00 2001 +From: Eric Yang <Eric.Yang2@amd.com> +Date: Fri, 24 Aug 2018 16:54:14 -0400 +Subject: [PATCH 5361/5725] drm/amd/display: use link type to decide stream enc + acquisition + +[Why] +Virtual sink is used when set mode happens on a disconnected display +to allow the mode set to proceed. This did not work with MST because +the logic for acquiring stream encoder uses stream signal to determine +the special handling is required, and stream signal is virtual instead +of DP in this case. + +[How] +Use link type to decide instead. + +Change-Id: Ied8056c5cfc035dd313ddb3631bca72442491cd6 +Signed-off-by: Eric Yang <Eric.Yang2@amd.com> +Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> +Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> +--- + drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +index b2f6711..6d27db6 100644 +--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c ++++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +@@ -1753,7 +1753,7 @@ static struct stream_encoder *find_first_free_match_stream_enc_for_link( + * required for non DP connectors. + */ + +- if (j >= 0 && dc_is_dp_signal(stream->signal)) ++ if (j >= 0 && link->connector_signal == SIGNAL_TYPE_DISPLAY_PORT) + return pool->stream_enc[j]; + + return NULL; +-- +2.7.4 + |