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drm/amd/display: Added support for individual control for multiple back-light instances.

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[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>
This commit is contained in:
Jake Wang
2021-04-23 16:42:35 -04:00
committed by Alex Deucher
parent 05adfd80cc
commit 6e568e438b
6 changed files with 47 additions and 27 deletions
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26
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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@@ -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));
}