From 5ea8e53d2db7bbfa3772009ad8ab4d50376e2c37 Mon Sep 17 00:00:00 2001 From: Roman Li Date: Mon, 14 Jul 2025 14:37:33 -0400 Subject: [PATCH] drm/amd/display: Disable dsc_power_gate for dcn314 by default [ Upstream commit 02f3ec53177243d32ee8b6f8ba99136d7887ee3a ] [Why] "REG_WAIT timeout 1us * 1000 tries - dcn314_dsc_pg_control line" warnings seen after resuming from s2idle. DCN314 has issues with DSC power gating that cause REG_WAIT timeouts when attempting to power down DSC blocks. [How] Disable dsc_power_gate for dcn314 by default. Reviewed-by: Nicholas Kazlauskas Signed-off-by: Roman Li Signed-off-by: Ivan Lipski Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/dc/resource/dcn314/dcn314_resource.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn314/dcn314_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn314/dcn314_resource.c index 01d95108ce662..585c3e8a21948 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn314/dcn314_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn314/dcn314_resource.c @@ -927,6 +927,7 @@ static const struct dc_debug_options debug_defaults_drv = { .seamless_boot_odm_combine = true, .enable_legacy_fast_update = true, .using_dml2 = false, + .disable_dsc_power_gate = true, }; static const struct dc_panel_config panel_config_defaults = { -- 2.47.3