diff options
Diffstat (limited to '0042-drm-amd-display-Fix-TDR-eDP-and-USB4-display-light-u.patch')
| -rw-r--r-- | 0042-drm-amd-display-Fix-TDR-eDP-and-USB4-display-light-u.patch | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/0042-drm-amd-display-Fix-TDR-eDP-and-USB4-display-light-u.patch b/0042-drm-amd-display-Fix-TDR-eDP-and-USB4-display-light-u.patch new file mode 100644 index 000000000000..5b36705e89ef --- /dev/null +++ b/0042-drm-amd-display-Fix-TDR-eDP-and-USB4-display-light-u.patch @@ -0,0 +1,58 @@ +From 909dae582c8f3a9a231c7bc41594787b1620a5f1 Mon Sep 17 00:00:00 2001 +From: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com> +Date: Mon, 11 Jul 2022 18:37:41 -0400 +Subject: [PATCH 42/73] drm/amd/display: Fix TDR eDP and USB4 display light up + issue + +[ Upstream commit 30456ffa65469d1d2e5e1da05017e6728d24c11c ] + +[Why] +After TDR recovery, eDP and USB4 display does not light up. Because +dmub outbox notifications are not enabled after dmub reload and link +encoder assignments for the streams are not cleared before dc state +reset. + +[How] +- Dmub outbox notification is enabled after tdr recovery by issuing + inbox command to dmub. +- Link encoders for the streams are unassigned before dc state reset. + +Reviewed-by: Jimmy Kizito <Jimmy.Kizito@amd.com> +Reviewed-by: Jun Lei <Jun.Lei@amd.com> +Acked-by: Tom Chung <chiahsuan.chung@amd.com> +Signed-off-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com> +Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +Signed-off-by: Sasha Levin <sashal@kernel.org> +--- + drivers/gpu/drm/amd/display/dc/core/dc.c | 1 + + drivers/gpu/drm/amd/display/dc/dc_link.h | 1 + + 2 files changed, 2 insertions(+) + +diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c +index f14449401188..7d69341acca0 100644 +--- a/drivers/gpu/drm/amd/display/dc/core/dc.c ++++ b/drivers/gpu/drm/amd/display/dc/core/dc.c +@@ -3783,6 +3783,7 @@ void dc_enable_dmub_outbox(struct dc *dc) + struct dc_context *dc_ctx = dc->ctx; + + dmub_enable_outbox_notification(dc_ctx->dmub_srv); ++ DC_LOG_DC("%s: dmub outbox notifications enabled\n", __func__); + } + + /** +diff --git a/drivers/gpu/drm/amd/display/dc/dc_link.h b/drivers/gpu/drm/amd/display/dc/dc_link.h +index a3c37ee3f849..f96f53c1bc25 100644 +--- a/drivers/gpu/drm/amd/display/dc/dc_link.h ++++ b/drivers/gpu/drm/amd/display/dc/dc_link.h +@@ -337,6 +337,7 @@ enum dc_detect_reason { + DETECT_REASON_HPDRX, + DETECT_REASON_FALLBACK, + DETECT_REASON_RETRAIN, ++ DETECT_REASON_TDR, + }; + + bool dc_link_detect(struct dc_link *dc_link, enum dc_detect_reason reason); +-- +2.37.3 + |