diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4223-drm-amd-display-setting-the-DIG_MODE-to-the-correct-.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4223-drm-amd-display-setting-the-DIG_MODE-to-the-correct-.patch | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4223-drm-amd-display-setting-the-DIG_MODE-to-the-correct-.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4223-drm-amd-display-setting-the-DIG_MODE-to-the-correct-.patch new file mode 100644 index 00000000..c51b4d98 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4223-drm-amd-display-setting-the-DIG_MODE-to-the-correct-.patch @@ -0,0 +1,44 @@ +From ff90d9ae73aebf86db14dfe520031dd4226f3293 Mon Sep 17 00:00:00 2001 +From: Zhan liu <zhan.liu@amd.com> +Date: Thu, 17 Oct 2019 14:55:56 -0400 +Subject: [PATCH 4223/4736] 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. + +Change-Id: Ie739e345753440280bfeecff0b0ac9fda09c5ed0 +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 5ce5db7818e4..ea50ba20dd68 100644 +--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c ++++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c +@@ -2840,6 +2840,15 @@ void core_link_enable_stream( + CONTROLLER_DP_TEST_PATTERN_VIDEOMODE, + COLOR_DEPTH_UNDEFINED); + ++ /* 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 + |