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drm/amd/display: Implement voltage limitation for dali

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[Why]
we only want the lowest voltage to be available for dali.

[How]
Use the get_highest_allowed_voltage_level function
to return 0 for dali

Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Bhawanpreet Lakha 2019-09-06 16:32:44 -04:00 committed by Alex Deucher
parent c4cacce785
commit d1082e23ee
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
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@ -708,6 +708,10 @@ static void hack_bounding_box(struct dcn_bw_internal_vars *v,
unsigned int get_highest_allowed_voltage_level(uint32_t hw_internal_rev)
{
/* for dali, the highest voltage level we want is 0 */
if (ASICREV_IS_DALI(hw_internal_rev))
return 0;
/* we are ok with all levels */
return 4;
}