diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.19.8/0334-drm-amd-display-use-link-type-to-decide-stream-enc-a.patch')
-rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.19.8/0334-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-4.19.8/0334-drm-amd-display-use-link-type-to-decide-stream-enc-a.patch b/common/recipes-kernel/linux/linux-yocto-4.19.8/0334-drm-amd-display-use-link-type-to-decide-stream-enc-a.patch new file mode 100644 index 00000000..41e239e0 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.19.8/0334-drm-amd-display-use-link-type-to-decide-stream-enc-a.patch @@ -0,0 +1,40 @@ +From 6273338531453a2af2e8d0928e6f9aa63b8c4e3e 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 0334/2940] 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 3d854f9b2aaa..438c18ab1749 100644 +--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c ++++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +@@ -1772,7 +1772,7 @@ 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; +-- +2.17.1 + |