platform/x86/intel/pmt/discovery: Get telemetry attributes

Add intel_pmt_get_features() in PMT Discovery to enable the PMT Telemetry
driver to obtain attributes of the aggregated telemetry spaces it
enumerates. The function gathers feature flags and associated data (like
the number of RMIDs) from each PMT entry, laying the groundwork for a
future kernel interface that will allow direct access to telemetry regions
based on their capabilities.

Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Link: https://lore.kernel.org/r/20250703022832.1302928-14-david.e.box@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/platform/x86/intel/pmt/telemetry.c b/drivers/platform/x86/intel/pmt/telemetry.c
index ac3a9bdf56015..58d06749e4172 100644
--- a/drivers/platform/x86/intel/pmt/telemetry.c
+++ b/drivers/platform/x86/intel/pmt/telemetry.c
@@ -9,11 +9,14 @@
  */
 
 #include <linux/auxiliary_bus.h>
+#include <linux/intel_pmt_features.h>
 #include <linux/intel_vsec.h>
 #include <linux/kernel.h>
+#include <linux/kref.h>
 #include <linux/module.h>
 #include <linux/pci.h>
 #include <linux/slab.h>
+#include <linux/types.h>
 #include <linux/uaccess.h>
 #include <linux/overflow.h>
 
@@ -311,6 +314,8 @@ static int pmt_telem_probe(struct auxiliary_device *auxdev, const struct auxilia
 			continue;
 
 		priv->num_entries++;
+
+		intel_pmt_get_features(entry);
 	}
 
 	return 0;