For the dummy ACG fuses,need to disable ACG, otherwise
corruption will be caused.

Change-Id: Ic32b138720cada2de510cbda607c681ad409e748
Signed-off-by: Kenneth Feng <kenneth.f...@amd.com>
---
 drivers/gpu/drm/amd/powerplay/hwmgr/vega12_processpptables.c | 5 +++++
 drivers/gpu/drm/amd/powerplay/inc/hwmgr.h                    | 1 +
 2 files changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_processpptables.c 
b/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_processpptables.c
index 7fa1ba8..888ddca 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_processpptables.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_processpptables.c
@@ -224,6 +224,11 @@ static int append_vbios_pptable(struct pp_hwmgr *hwmgr, 
PPTable_t *ppsmc_pptable
        ppsmc_pptable->AcgGfxclkSpreadPercent = 
smc_dpm_table.acggfxclkspreadpercent;
        ppsmc_pptable->AcgGfxclkSpreadFreq = smc_dpm_table.acggfxclkspreadfreq;
 
+       /* 0xFFFF will disable the ACG feature */
+       if (!(hwmgr->feature_mask & PP_ACG_MASK)) {
+               ppsmc_pptable->AcgThresholdFreqHigh = 0xFFFF;
+               ppsmc_pptable->AcgThresholdFreqLow = 0xFFFF;
+       }
 
        return 0;
 }
diff --git a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h 
b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
index 9b3dd7d..2f203ec 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
@@ -82,6 +82,7 @@ enum PP_FEATURE_MASK {
        PP_SOCCLK_DPM_MASK = 0x1000,
        PP_DCEFCLK_DPM_MASK = 0x2000,
        PP_OVERDRIVE_MASK = 0x4000,
+       PP_ACG_MASK = 0x10000,
 };
 
 enum PHM_BackEnd_Magic {
-- 
2.7.4

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