diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.19.8/1310-drm-amd-display-Fix-issue-with-link_active-state-not.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.19.8/1310-drm-amd-display-Fix-issue-with-link_active-state-not.patch | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.19.8/1310-drm-amd-display-Fix-issue-with-link_active-state-not.patch b/common/recipes-kernel/linux/linux-yocto-4.19.8/1310-drm-amd-display-Fix-issue-with-link_active-state-not.patch new file mode 100644 index 00000000..bcc06593 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.19.8/1310-drm-amd-display-Fix-issue-with-link_active-state-not.patch @@ -0,0 +1,69 @@ +From 65561d03dcc375d5ccc0992694c3eb36923e7bd7 Mon Sep 17 00:00:00 2001 +From: Anthony Koo <Anthony.Koo@amd.com> +Date: Thu, 7 Feb 2019 20:38:34 -0500 +Subject: [PATCH 1310/2940] drm/amd/display: Fix issue with link_active state + not correct for MST + +[Why] +For MST, link not disabled until all streams disabled + +[How] +Add check for stream_count before setting link_active = false for MST + +Signed-off-by: Anthony Koo <Anthony.Koo@amd.com> +Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com> +Acked-by: Leo Li <sunpeng.li@amd.com> +--- + drivers/gpu/drm/amd/display/dc/core/dc_link.c | 15 +++++++++++---- + 1 file changed, 11 insertions(+), 4 deletions(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c +index a5b18cfac326..46e94bdd73a3 100644 +--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c ++++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c +@@ -2037,6 +2037,9 @@ static enum dc_status enable_link( + break; + } + ++ if (status == DC_OK) ++ pipe_ctx->stream->link->link_status.link_active = true; ++ + return status; + } + +@@ -2060,6 +2063,14 @@ static void disable_link(struct dc_link *link, enum signal_type signal) + dp_disable_link_phy_mst(link, signal); + } else + link->link_enc->funcs->disable_output(link->link_enc, signal); ++ ++ if (signal == SIGNAL_TYPE_DISPLAY_PORT_MST) { ++ /* MST disable link only when no stream use the link */ ++ if (link->mst_stream_alloc_table.stream_count <= 0) ++ link->link_status.link_active = false; ++ } else { ++ link->link_status.link_active = false; ++ } + } + + static bool dp_active_dongle_validate_timing( +@@ -2623,8 +2634,6 @@ void core_link_enable_stream( + } + } + +- stream->link->link_status.link_active = true; +- + core_dc->hwss.enable_audio_stream(pipe_ctx); + + /* turn off otg test pattern if enable */ +@@ -2659,8 +2668,6 @@ void core_link_disable_stream(struct pipe_ctx *pipe_ctx, int option) + core_dc->hwss.disable_stream(pipe_ctx, option); + + disable_link(pipe_ctx->stream->link, pipe_ctx->stream->signal); +- +- pipe_ctx->stream->link->link_status.link_active = false; + } + + void core_link_set_avmute(struct pipe_ctx *pipe_ctx, bool enable) +-- +2.17.1 + |