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drm/amd/display: Add PSP FW version mask.

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[Why]
PSP version format is AB.CD.EF.GH, where CD and GH is the main version.
current psp version check for dmcub loading dmcu check 0x00110029, in
case of some psp version eg: 0x00110227 which main version should be
0x00110027, will result in unexpeceted dmcub loading dmcu FW.

[How]
Add psp version mask 0x00FF00FF for checking version.

Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Yongqiang Sun
2019-10-17 21:44:50 -04:00
committed by Alex Deucher
parent a7e3658e94
commit 28bcdb8ee9
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c
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@@ -886,7 +886,7 @@ static void dcn21_dmcu_construct(
if (!IS_FPGA_MAXIMUS_DC(ctx->dce_environment)) {
psp_version = dm_read_reg(ctx, mmMP0_SMN_C2PMSG_58);
dmcu_dce->base.auto_load_dmcu = (psp_version > 0x00110029);
dmcu_dce->base.auto_load_dmcu = ((psp_version & 0x00FF00FF) > 0x00110029);
dmcu_dce->base.psp_version = psp_version;
}
}