diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4289-drm-amd-display-setting-the-DIG_MODE-to-the-correct-.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4289-drm-amd-display-setting-the-DIG_MODE-to-the-correct-.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4289-drm-amd-display-setting-the-DIG_MODE-to-the-correct-.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4289-drm-amd-display-setting-the-DIG_MODE-to-the-correct-.patch new file mode 100644 index 00000000..71178efc --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4289-drm-amd-display-setting-the-DIG_MODE-to-the-correct-.patch @@ -0,0 +1,43 @@ +From 2d6507e7f7463cc3f1b7736dac45a3a4057a929e Mon Sep 17 00:00:00 2001 +From: Zhan liu <zhan.liu@amd.com> +Date: Fri, 25 Oct 2019 14:26:23 -0400 +Subject: [PATCH 4289/4736] drm/amd/display: setting the DIG_MODE to the + correct value. + +[Why] +This patch is for fixing Navi14 HDMI display pink screen issue. + +[How] +Call stream->link->link_enc->funcs->setup twice. This is setting +the DIG_MODE to the correct value after having been overridden by +the call to transmitter control. + +Signed-off-by: Zhan Liu <zhan.liu@amd.com> +Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> +--- + drivers/gpu/drm/amd/display/dc/core/dc_link.c | 9 +++++++++ + 1 file changed, 9 insertions(+) + +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 84813ef735c1..e87124fe981c 100644 +--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c ++++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c +@@ -2998,6 +2998,15 @@ void core_link_enable_stream( + stream->link->link_enc, + pipe_ctx->stream->signal); + ++ /* This second call is needed to reconfigure the DIG ++ * as a workaround for the incorrect value being applied ++ * from transmitter control. ++ */ ++ if (!dc_is_virtual_signal(pipe_ctx->stream->signal)) ++ stream->link->link_enc->funcs->setup( ++ stream->link->link_enc, ++ pipe_ctx->stream->signal); ++ + #ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT + if (pipe_ctx->stream->timing.flags.DSC) { + if (dc_is_dp_signal(pipe_ctx->stream->signal) || +-- +2.17.1 + |