diff options
| author | Jake Wang <haonan.wang2@amd.com> | 2021-04-23 16:42:35 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-05-27 12:24:03 -0400 |
| commit | 6e568e438b4d4e9754bdf361a91e0a774ca082ed (patch) | |
| tree | 22590adb73f5ab7a885759d9b4ef1c5f29c3dcd2 /drivers/gpu/drm/amd/display/amdgpu_dm | |
| parent | 05adfd80cc52e0b4581e65bb5418de5dfd24d105 (diff) | |
| download | linux-6e568e438b4d4e9754bdf361a91e0a774ca082ed.tar.bz2 | |
drm/amd/display: Added support for individual control for multiple back-light instances.
[Why & How]
Added support for individual control for multiple back-light instances.
Signed-off-by: Jake Wang <haonan.wang2@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 26 |
1 files changed, 15 insertions, 11 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 092a493c3525..46910eceda29 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -1709,7 +1709,6 @@ static int dm_late_init(void *handle) unsigned int linear_lut[16]; int i; struct dmcu *dmcu = NULL; - bool ret = true; dmcu = adev->dm.dc->res_pool->dmcu; @@ -1726,18 +1725,23 @@ static int dm_late_init(void *handle) * 0xFFFF x 0.01 = 0x28F */ params.min_abm_backlight = 0x28F; - /* In the case where abm is implemented on dmcub, - * dmcu object will be null. - * ABM 2.4 and up are implemented on dmcub. - */ - if (dmcu) - ret = dmcu_load_iram(dmcu, params); - else if (adev->dm.dc->ctx->dmub_srv) - ret = dmub_init_abm_config(adev->dm.dc->res_pool, params); + * dmcu object will be null. + * ABM 2.4 and up are implemented on dmcub. + */ + if (dmcu) { + if (!dmcu_load_iram(dmcu, params)) + return -EINVAL; + } else if (adev->dm.dc->ctx->dmub_srv) { + struct dc_link *edp_links[MAX_NUM_EDP]; + int edp_num; - if (!ret) - return -EINVAL; + get_edp_links(adev->dm.dc, edp_links, &edp_num); + for (i = 0; i < edp_num; i++) { + if (!dmub_init_abm_config(adev->dm.dc->res_pool, params, i)) + return -EINVAL; + } + } return detect_mst_link_for_all_connectors(adev_to_drm(adev)); } |