platform/x86/intel/pmt: Pass discovery index instead of resource

Change PMT class code to pass a discovery index rather than a direct struct
resource when creating entries. This allows the class to identify the
discovery source generically without assuming PCI BAR resources. For PCI
devices, the index still resolves to a resource in the intel_vsec_device.
Other discovery sources, such as ACPI, can use the same index without
needing a struct resource.

Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Link: https://patch.msgid.link/8e785902c6a3ac1b5a9c3f0f65096553dc5acd4f.1781294741.git.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>

diff --git a/drivers/platform/x86/intel/pmt/class.c b/drivers/platform/x86/intel/pmt/class.c
index 9b315334a69ba576517e2ebcbabda2fba2afae23..7da8279b54f85c6e40365e945689223201811a9e 100644 (file)
--- a/drivers/platform/x86/intel/pmt/class.c
+++ b/drivers/platform/x86/intel/pmt/class.c
@@ -206,11 +206,12 @@ EXPORT_SYMBOL_GPL(intel_pmt_class);
 
 static int intel_pmt_populate_entry(struct intel_pmt_entry *entry,
                                    struct intel_vsec_device *ivdev,
-                                   struct resource *disc_res)
+                                   int idx)
 {
        struct pci_dev *pci_dev = to_pci_dev(ivdev->dev);
        struct device *dev = &ivdev->auxdev.dev;
        struct intel_pmt_header *header = &entry->header;
+       struct resource *disc_res;
        u8 bir;
 
        /*
@@ -235,6 +236,7 @@ static int intel_pmt_populate_entry(struct intel_pmt_entry *entry,
                 * For access_type LOCAL, the base address is as follows:
                 * base address = end of discovery region + base offset
                 */
+               disc_res = &ivdev->resource[idx];
                entry->base_addr = disc_res->end + 1 + header->base_offset;
 
                /*
@@ -397,7 +399,7 @@ int intel_pmt_dev_create(struct intel_pmt_entry *entry, struct intel_pmt_namespa
                        return ret;
        }
 
-       ret = intel_pmt_populate_entry(entry, intel_vsec_dev, disc_res);
+       ret = intel_pmt_populate_entry(entry, intel_vsec_dev, idx);
        if (ret)
                return ret;