diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c
index 3bed991ffa40..0242e348e755 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c
@@ -5893,7 +5893,7 @@ uint32_t tonga_get_xclk(struct pp_hwmgr *hwmgr)
 	if (!fw_info)
 		return 0;
 
-	reference_clock = le16_to_cpu(fw_info->usMinPixelClockPLL_Output);
+	reference_clock = le16_to_cpu(fw_info->usReferenceClock);
 
 	divide = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_CLKPIN_CNTL, XTALIN_DIVIDE);