#define ACP_DSP_TO_HOST_IRQ                    0x04
 
+#define ACP_RN_PCI_ID                          0x01
+#define ACP_RMB_PCI_ID                         0x6F
+
 #define HOST_BRIDGE_CZN                                0x1630
 #define HOST_BRIDGE_RMB                                0x14B5
 #define ACP_SHA_STAT                           0x8000
 
 {
        unsigned int flag;
 
+       if (pci->revision != ACP_RMB_PCI_ID)
+               return -ENODEV;
+
        flag = snd_amd_acp_find_config(pci);
        if (flag != FLAG_AMD_SOF && flag != FLAG_AMD_SOF_ONLY_DMIC)
                return -ENODEV;
 
 {
        unsigned int flag;
 
+       if (pci->revision != ACP_RN_PCI_ID)
+               return -ENODEV;
+
        flag = snd_amd_acp_find_config(pci);
        if (flag != FLAG_AMD_SOF && flag != FLAG_AMD_SOF_ONLY_DMIC)
                return -ENODEV;