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drm/amd/powerplay: get system info by cgs interface. 

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>
This commit is contained in:
Rex Zhu 2016-08-22 20:47:01 +08:00 committed by Alex Deucher
parent 2fef37c62c
commit 38109efacd
1 changed files with 20 additions and 4 deletions
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24
drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c
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@ -3119,11 +3119,27 @@ int polaris10_patch_voltage_workaround(struct pp_hwmgr *hwmgr)
struct phm_ppt_v1_voltage_lookup_table *lookup_table =
table_info->vddc_lookup_table;
uint32_t i;
uint32_t hw_revision, sub_vendor_id, sub_sys_id;
struct cgs_system_info sys_info = {0};
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))) {
sys_info.size = sizeof(struct cgs_system_info);
sys_info.info_id = CGS_SYSTEM_INFO_PCIE_REV;
cgs_query_system_info(hwmgr->device, &sys_info);
hw_revision = (uint32_t)sys_info.value;
sys_info.info_id = CGS_SYSTEM_INFO_PCIE_SUB_SYS_ID;
cgs_query_system_info(hwmgr->device, &sys_info);
sub_sys_id = (uint32_t)sys_info.value;
sys_info.info_id = CGS_SYSTEM_INFO_PCIE_SUB_SYS_VENDOR_ID;
cgs_query_system_info(hwmgr->device, &sys_info);
sub_vendor_id = (uint32_t)sys_info.value;
if (hwmgr->chip_id == CHIP_POLARIS10 && hw_revision == 0xC7 &&
((sub_sys_id == 0xb37 && sub_vendor_id == 0x1002) ||
(sub_sys_id == 0x4a8 && sub_vendor_id == 0x1043) ||
(sub_sys_id == 0x9480 && sub_vendor_id == 0x1682))) {
if (lookup_table->entries[dep_mclk_table->entries[dep_mclk_table->count-1].vddInd].us_vdd >= 1000)
return 0;