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>
Cc: stable@vger.kernel.org
This commit is contained in:
Harry Wentland 2020-05-28 09:44:44 -04:00 committed by Alex Deucher
parent cc831b9781
commit 14ed1c908a
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);
}