From 6b2132f50d9ff9c5850338e915c2873a0392e336 Mon Sep 17 00:00:00 2001 From: Eryk Brol Date: Tue, 9 Feb 2021 17:09:52 -0500 Subject: [PATCH] drm/amd/display: Check for DSC support instead of ASIC revision [ Upstream commit 349a19b2f1b01e713268c7de9944ad669ccdf369 ] [why] This check for ASIC revision is no longer useful and causes lightup issues after a topology change in MST DSC scenario. In this case, DSC configs should be recalculated for the new topology. This check prevented that from happening on certain ASICs that do, in fact, support DSC. [how] Change the ASIC revision to instead check if DSC is supported. Signed-off-by: Eryk Brol Acked-by: Bindu Ramamurthy Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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 c07737c45677..830d302be045 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -8659,7 +8659,7 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev, } #if defined(CONFIG_DRM_AMD_DC_DCN) - if (adev->asic_type >= CHIP_NAVI10) { + if (dc_resource_is_dsc_encoding_supported(dc)) { for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { if (drm_atomic_crtc_needs_modeset(new_crtc_state)) { ret = add_affected_mst_dsc_crtcs(state, crtc); -- 2.25.1