From: Ivan Lipski Date: Thu, 17 Jul 2025 17:58:35 +0000 (-0400) Subject: drm/amd/display: Allow DCN301 to clear update flags X-Git-Tag: v6.17-rc1~76^2~1^2~1 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2d418e4fd9f1eca7dfce80de86dd702d36a06a25;p=thirdparty%2Fkernel%2Flinux.git drm/amd/display: Allow DCN301 to clear update flags [Why & How] Not letting DCN301 to clear after surface/stream update results in artifacts when switching between active overlay planes. The issue is known and has been solved initially. See below: (https://gitlab.freedesktop.org/drm/amd/-/issues/3441) Fixes: f354556e29f4 ("drm/amd/display: limit clear_update_flags t dcn32 and above") Reviewed-by: Mario Limonciello Signed-off-by: Ivan Lipski Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index c31f7f8e409f2..28aca7017f0f7 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -5443,7 +5443,8 @@ bool dc_update_planes_and_stream(struct dc *dc, else ret = update_planes_and_stream_v2(dc, srf_updates, surface_count, stream, stream_update); - if (ret && dc->ctx->dce_version >= DCN_VERSION_3_2) + if (ret && (dc->ctx->dce_version >= DCN_VERSION_3_2 || + dc->ctx->dce_version == DCN_VERSION_3_01)) clear_update_flags(srf_updates, surface_count, stream); return ret;