diff --git a/arch/x86/include/asm/intel-family.h b/arch/x86/include/asm/intel-family.h
index 652c0137e909f..f5020203de0b1 100644
--- a/arch/x86/include/asm/intel-family.h
+++ b/arch/x86/include/asm/intel-family.h
@@ -159,6 +159,8 @@
 #define INTEL_FAM6_GRANITERAPIDS_D	0xAE
 #define INTEL_GRANITERAPIDS_D		IFM(6, 0xAE)
 
+#define INTEL_DIAMONDRAPIDS_X		IFM(19, 0x01) /* Panther Cove */
+
 #define INTEL_BARTLETTLAKE		IFM(6, 0xD7) /* Raptor Cove */
 
 /* "Hybrid" Processors (P-Core/E-Core) */
@@ -193,6 +195,8 @@
 #define INTEL_FAM6_LUNARLAKE_M		0xBD
 #define INTEL_LUNARLAKE_M		IFM(6, 0xBD)
 
+#define INTEL_PANTHERLAKE_L		IFM(6, 0xCC)
+
 /* "Small Core" Processors (Atom/E-Core) */
 
 #define INTEL_FAM6_ATOM_BONNELL		0x1C /* Diamondville, Pineview */
diff --git a/drivers/platform/x86/intel/speed_select_if/isst_if_common.c b/drivers/platform/x86/intel/speed_select_if/isst_if_common.c
index 20bafd13cd8cb..6eaaf64591661 100644
--- a/drivers/platform/x86/intel/speed_select_if/isst_if_common.c
+++ b/drivers/platform/x86/intel/speed_select_if/isst_if_common.c
@@ -802,15 +802,16 @@ EXPORT_SYMBOL_GPL(isst_if_cdev_unregister);
 #define SST_MBOX_SUPPORTED	0x02
 
 static const struct x86_cpu_id isst_cpu_ids[] = {
-	X86_MATCH_INTEL_FAM6_MODEL(ATOM_CRESTMONT,	SST_HPM_SUPPORTED),
-	X86_MATCH_INTEL_FAM6_MODEL(ATOM_CRESTMONT_X,	SST_HPM_SUPPORTED),
-	X86_MATCH_INTEL_FAM6_MODEL(EMERALDRAPIDS_X,	0),
-	X86_MATCH_INTEL_FAM6_MODEL(GRANITERAPIDS_D,	SST_HPM_SUPPORTED),
-	X86_MATCH_INTEL_FAM6_MODEL(GRANITERAPIDS_X,	SST_HPM_SUPPORTED),
-	X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_D,		0),
-	X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_X,		0),
-	X86_MATCH_INTEL_FAM6_MODEL(SAPPHIRERAPIDS_X,	0),
-	X86_MATCH_INTEL_FAM6_MODEL(SKYLAKE_X,		SST_MBOX_SUPPORTED),
+	X86_MATCH_VFM(INTEL_ATOM_CRESTMONT,	SST_HPM_SUPPORTED),
+	X86_MATCH_VFM(INTEL_ATOM_CRESTMONT_X,	SST_HPM_SUPPORTED),
+	X86_MATCH_VFM(INTEL_EMERALDRAPIDS_X,	0),
+	X86_MATCH_VFM(INTEL_GRANITERAPIDS_D,	SST_HPM_SUPPORTED),
+	X86_MATCH_VFM(INTEL_GRANITERAPIDS_X,	SST_HPM_SUPPORTED),
+	X86_MATCH_VFM(INTEL_ICELAKE_D,		0),
+	X86_MATCH_VFM(INTEL_ICELAKE_X,		0),
+	X86_MATCH_VFM(INTEL_DIAMONDRAPIDS_X,	SST_HPM_SUPPORTED),
+	X86_MATCH_VFM(INTEL_SAPPHIRERAPIDS_X,	0),
+	X86_MATCH_VFM(INTEL_SKYLAKE_X,		SST_MBOX_SUPPORTED),
 	{}
 };
 MODULE_DEVICE_TABLE(x86cpu, isst_cpu_ids);