From 78ad75f8d77a1a5dd99d8d8dae66c49113bd0bd7 Mon Sep 17 00:00:00 2001 From: Thomas Lim Date: Tue, 7 May 2019 15:08:22 -0500 Subject: [PATCH] drm/amd/display: Add power down display on boot flag [Why] Due to the generic introduction of seamless boot, the display is no longer blanked upon boot. However, this causes corruption on some systems that does not lock the memory in the non-secure boot case, resulting in brief corruption on boot due to garbage being written into the frame buffer. [How] Add a flag, read during DC init, to determine whether display should be blanked on boot. Default to true. Signed-off-by: Thomas Lim Reviewed-by: Aric Cyr Acked-by: Anthony Koo Acked-by: Leo Li Acked-by: Hawking Zhang Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 1 + 1 file changed, 1 insertion(+) 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 72d14f680932..3eaae98b1320 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -557,6 +557,7 @@ static int amdgpu_dm_init(struct amdgpu_device *adev) init_data.flags.fbc_support = true; init_data.flags.power_down_display_on_boot = true; + #ifdef CONFIG_DRM_AMD_DC_DCN2_0 init_data.soc_bounding_box = adev->dm.soc_bounding_box; #endif -- 2.30.2