drm/amd/powrplay: workaround Memory EDC Error for certain partner boards.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
index ba8f57a..d829076 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
@@ -77,6 +77,8 @@ int hwmgr_init(struct amd_pp_init *pp_init, struct pp_instance *handle)
        hwmgr->chip_family = pp_init->chip_family;
        hwmgr->chip_id = pp_init->chip_id;
        hwmgr->hw_revision = pp_init->rev_id;
+       hwmgr->sub_sys_id = pp_init->sub_sys_id;
+       hwmgr->sub_vendor_id = pp_init->sub_vendor_id;
        hwmgr->usec_timeout = AMD_MAX_USEC_TIMEOUT;
        hwmgr->power_source = PP_PowerSource_AC;
 

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c
index 60cfcbd..7d55296 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c
@@ -3133,7 +3133,10 @@ int polaris10_patch_voltage_workaround(struct pp_hwmgr *hwmgr)
                        table_info->vddc_lookup_table;
        uint32_t i;
 
-       if (hwmgr->chip_id == CHIP_POLARIS10 && hwmgr->hw_revision == 0xC7) {
+       if (hwmgr->chip_id == CHIP_POLARIS10 && hwmgr->hw_revision == 0xC7 &&
+                       ((hwmgr->sub_sys_id == 0xb37 && hwmgr->sub_vendor_id == 0x1002) ||
+                   (hwmgr->sub_sys_id == 0x4a8 && hwmgr->sub_vendor_id == 0x1043) ||
+                   (hwmgr->sub_sys_id == 0x9480 && hwmgr->sub_vendor_id == 0x1682))) {
                if (lookup_table->entries[dep_mclk_table->entries[dep_mclk_table->count-1].vddInd].us_vdd >= 1000)
                        return 0;