Revert "drm/amd/display: disable dcn20 abm feature for bring up"

This reverts commit 96cb7cf13d.

This change was used for DCN2 bringup and is no longer desired.
In fact it breaks backlight on DCN2 systems.

Cc: Alexander Monakov <amonakov@ispras.ru>
Cc: Hersen Wu <hersenxs.wu@amd.com>
Cc: Anthony Koo <Anthony.Koo@amd.com>
Cc: Michael Chiu <Michael.Chiu@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reported-and-tested-by: Alexander Monakov <amonakov@ispras.ru>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Harry Wentland 2020-05-28 09:44:44 -04:00 committed by Alex Deucher
parent 83a13ef590
commit 2a12c4e9f1
1 changed files with 4 additions and 7 deletions

View File

@ -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);
}