diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/1078-drm-amd-display-Fix-S3-topology-change.patch')
-rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/1078-drm-amd-display-Fix-S3-topology-change.patch | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/1078-drm-amd-display-Fix-S3-topology-change.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/1078-drm-amd-display-Fix-S3-topology-change.patch new file mode 100644 index 00000000..8f7691f2 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/1078-drm-amd-display-Fix-S3-topology-change.patch @@ -0,0 +1,39 @@ +From 4c203194d0de9341ccb07f4d81f0350fe5128a0e Mon Sep 17 00:00:00 2001 +From: Roman Li <Roman.Li@amd.com> +Date: Fri, 20 Oct 2017 10:15:18 -0400 +Subject: [PATCH 1078/4131] drm/amd/display: Fix S3 topology change + +Clean fake sink flag on resume if real sink connected. +Fixing S3 topology change problem like this: +1) x desktop with 1 or > displays +2) unplug display +3) suspend +4) replug same display +5) resume +without this change replugged display doesn't light up + +Signed-off-by: Roman Li <Roman.Li@amd.com> +Reviewed-by: Sun peng Li <Sunpeng.Li@amd.com> +Acked-by: Harry Wentland <harry.wentland@amd.com> +--- + drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 4 ++++ + 1 file changed, 4 insertions(+) + +diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +index f7789da..a44b9dd 100644 +--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c ++++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +@@ -773,6 +773,10 @@ int amdgpu_dm_display_resume(struct amdgpu_device *adev ) + + mutex_lock(&aconnector->hpd_lock); + dc_link_detect(aconnector->dc_link, false); ++ ++ if (aconnector->fake_enable && aconnector->dc_link->local_sink) ++ aconnector->fake_enable = false; ++ + aconnector->dc_sink = NULL; + amdgpu_dm_update_connector_after_detect(aconnector); + mutex_unlock(&aconnector->hpd_lock); +-- +2.7.4 + |