platform/x86/intel/tpmi: Add support for performance limit reasons

Add TPMI ID 0x0C (Perf Limit Reasons) to the list of supported TPMI IDs.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Tero Kristo <tero.kristo@linux.intel.com>
Link: https://lore.kernel.org/r/20240527133400.483634-2-tero.kristo@linux.intel.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

drivers/platform/x86/intel/tpmi.c

@@ -577,6 +577,8 @@ static const char *intel_tpmi_name(enum intel_tpmi_id id)
 		return "uncore";
 	case TPMI_ID_SST:
 		return "sst";
+	case TPMI_ID_PLR:
+		return "plr";
 	default:
 		return NULL;
 	}

include/linux/intel_tpmi.h

@@ -21,6 +21,7 @@ enum intel_tpmi_id {
 	TPMI_ID_PEM = 1,	/* Power and Perf excursion Monitor */
 	TPMI_ID_UNCORE = 2,	/* Uncore Frequency Scaling */
 	TPMI_ID_SST = 5,	/* Speed Select Technology */
+	TPMI_ID_PLR = 0xc,	/* Performance Limit Reasons */
 	TPMI_CONTROL_ID = 0x80,	/* Special ID for getting feature status */
 	TPMI_INFO_ID = 0x81,	/* Special ID for PCI BDF and Package ID information */
 };