diff options
Diffstat (limited to 'common/recipes-kernel/linux/files/0532-drm-amd-dal-Add-delay-for-MST-after-LT.patch')
| -rw-r--r-- | common/recipes-kernel/linux/files/0532-drm-amd-dal-Add-delay-for-MST-after-LT.patch | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/files/0532-drm-amd-dal-Add-delay-for-MST-after-LT.patch b/common/recipes-kernel/linux/files/0532-drm-amd-dal-Add-delay-for-MST-after-LT.patch new file mode 100644 index 00000000..4429a43e --- /dev/null +++ b/common/recipes-kernel/linux/files/0532-drm-amd-dal-Add-delay-for-MST-after-LT.patch @@ -0,0 +1,29 @@ +From 5d2f400cef10bbe7e5c6eee77c7368eb3500e164 Mon Sep 17 00:00:00 2001 +From: Harry Wentland <harry.wentland@amd.com> +Date: Fri, 27 Nov 2015 00:03:20 -0500 +Subject: [PATCH 0532/1110] drm/amd/dal: Add delay for MST after LT + +This gives the receiver some time to establish the link +and seems to have a positive impact on ACT handled. + +Signed-off-by: Harry Wentland <harry.wentland@amd.com> +Acked-by: Harry Wentland <harry.wentland@amd.com> +--- + drivers/gpu/drm/amd/dal/dc/core/dc_link.c | 1 + + 1 file changed, 1 insertion(+) + +diff --git a/drivers/gpu/drm/amd/dal/dc/core/dc_link.c b/drivers/gpu/drm/amd/dal/dc/core/dc_link.c +index ec85e87..0e97180 100644 +--- a/drivers/gpu/drm/amd/dal/dc/core/dc_link.c ++++ b/drivers/gpu/drm/amd/dal/dc/core/dc_link.c +@@ -1001,6 +1001,7 @@ enum dc_status core_link_enable(struct core_stream *stream) + break; + case SIGNAL_TYPE_DISPLAY_PORT_MST: + status = enable_link_dp_mst(stream); ++ dc_service_sleep_in_milliseconds(stream->ctx, 200); + break; + case SIGNAL_TYPE_DVI_SINGLE_LINK: + case SIGNAL_TYPE_DVI_DUAL_LINK: +-- +2.7.4 + |