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drm/amd/display: Assume LTTPR interop for DCN31+

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[WHY]
For DCN31 onward, LTTPR is to be enabled and set to Transparent by
VBIOS.  Driver is to assume that VBIOS has done this without needing to
check the VBIOS interop bit.

[HOW]
Add LTTPR enable and interop VBIOS bits into dc->caps, and force-set the
interop bit to true for DCN31+.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Wesley Chalmers
2021-07-19 13:13:33 -04:00
committed by Alex Deucher
parent 4fb9307154
commit ba18f2350e
4 changed files with 40 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c
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@@ -2617,6 +2617,26 @@ static bool dcn30_resource_construct(
dc->caps.color.mpc.ogam_rom_caps.hlg = 0;
dc->caps.color.mpc.ocsc = 1;
/* read VBIOS LTTPR caps */
{
if (ctx->dc_bios->funcs->get_lttpr_caps) {
enum bp_result bp_query_result;
uint8_t is_vbios_lttpr_enable = 0;
bp_query_result = ctx->dc_bios->funcs->get_lttpr_caps(ctx->dc_bios, &is_vbios_lttpr_enable);
dc->caps.vbios_lttpr_enable = (bp_query_result == BP_RESULT_OK) && !!is_vbios_lttpr_enable;
}
if (ctx->dc_bios->funcs->get_lttpr_interop) {
enum bp_result bp_query_result;
uint8_t is_vbios_interop_enabled = 0;
bp_query_result = ctx->dc_bios->funcs->get_lttpr_interop(ctx->dc_bios,
&is_vbios_interop_enabled);
dc->caps.vbios_lttpr_aware = (bp_query_result == BP_RESULT_OK) && !!is_vbios_interop_enabled;
}
}
if (dc->ctx->dce_environment == DCE_ENV_PRODUCTION_DRV)
dc->debug = debug_defaults_drv;
else if (dc->ctx->dce_environment == DCE_ENV_FPGA_MAXIMUS) {