diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.19.8/1757-drm-amd-display-fix-underflow-on-boot.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.19.8/1757-drm-amd-display-fix-underflow-on-boot.patch | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.19.8/1757-drm-amd-display-fix-underflow-on-boot.patch b/common/recipes-kernel/linux/linux-yocto-4.19.8/1757-drm-amd-display-fix-underflow-on-boot.patch new file mode 100644 index 00000000..71cf1e5b --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.19.8/1757-drm-amd-display-fix-underflow-on-boot.patch @@ -0,0 +1,46 @@ +From a48a1ae8d466aaeabdec0fc436061b5964b12362 Mon Sep 17 00:00:00 2001 +From: Eric Yang <Eric.Yang2@amd.com> +Date: Mon, 25 Mar 2019 16:11:43 -0400 +Subject: [PATCH 1757/2940] drm/amd/display: fix underflow on boot + +[Why] +New seamless boot sequence introduced a bug where front end is disabled +without blanking otg. + +[How] +Adjust the condition of blanking otg to match seamless boot. + +Signed-off-by: Eric Yang <Eric.Yang2@amd.com> +Reviewed-by: Anthony Koo <Anthony.Koo@amd.com> +Acked-by: Leo Li <sunpeng.li@amd.com> +Acked-by: Tony Cheng <Tony.Cheng@amd.com> +--- + drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 6 ++---- + 1 file changed, 2 insertions(+), 4 deletions(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c +index d750f5c42423..6bebbcc8460a 100644 +--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c ++++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c +@@ -979,16 +979,14 @@ static void dcn10_init_pipes(struct dc *dc, struct dc_state *context) + * to non-preferred front end. If pipe_ctx->stream is not NULL, + * we will use the pipe, so don't disable + */ +- if (pipe_ctx->stream != NULL) ++ if (pipe_ctx->stream != NULL && can_apply_seamless_boot) + continue; + +- if (tg->funcs->is_tg_enabled(tg)) +- tg->funcs->lock(tg); +- + /* Blank controller using driver code instead of + * command table. + */ + if (tg->funcs->is_tg_enabled(tg)) { ++ tg->funcs->lock(tg); + tg->funcs->set_blank(tg, true); + hwss_wait_for_blank_complete(tg); + } +-- +2.17.1 + |