From 71fcfd291d0a7e1f6768f9ffc3918b9557db584b Mon Sep 17 00:00:00 2001 From: Harry Wentland Date: Thu, 28 May 2020 09:44:44 -0400 Subject: [PATCH] Revert "drm/amd/display: disable dcn20 abm feature for bring up" This reverts commit 9bffc9b4889f6ccd91870d8ef86133042a9b76c2. This change was used for DCN2 bringup and is no longer desired. In fact it breaks backlight on DCN2 systems. Cc: Alexander Monakov Cc: Hersen Wu Cc: Anthony Koo Cc: Michael Chiu Signed-off-by: Harry Wentland Acked-by: Alex Deucher Reviewed-by: Nicholas Kazlauskas Reported-and-tested-by: Alexander Monakov Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) 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 d53c60b37cc6f..f42e7e67ddba4 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -1356,7 +1356,7 @@ static int dm_late_init(void *handle) unsigned int linear_lut[16]; int i; struct dmcu *dmcu = NULL; - bool ret = false; + bool ret; if (!adev->dm.fw_dmcu) return detect_mst_link_for_all_connectors(adev->ddev); @@ -1377,13 +1377,10 @@ static int dm_late_init(void *handle) */ params.min_abm_backlight = 0x28F; - /* todo will enable for navi10 */ - if (adev->asic_type <= CHIP_RAVEN) { - ret = dmcu_load_iram(dmcu, params); + ret = dmcu_load_iram(dmcu, params); - if (!ret) - return -EINVAL; - } + if (!ret) + return -EINVAL; return detect_mst_link_for_all_connectors(adev->ddev); } -- 2.39.5