src/soc/intel/common/block/dtt/dtt.c

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2
   3 #include <acpi/acpigen.h>
   4 #include <acpi/acpigen_pci.h>
   5 #include <device/device.h>
   6 #include <device/pci.h>
   7 #include <device/pci_ids.h>
   8 #include <intelblocks/acpi.h>
   9
  10 static const unsigned short pci_device_ids[] = {
  11         PCI_DID_INTEL_RPL_DTT,
  12         PCI_DID_INTEL_MTL_DTT,
  13         PCI_DID_INTEL_CML_DTT,
  14         PCI_DID_INTEL_TGL_DTT,
  15         PCI_DID_INTEL_JSL_DTT,
  16         PCI_DID_INTEL_ADL_DTT,
  17         0
  18 };
  19
  20 static void dtt_acpi_fill_ssdt(const struct device *dev)
  21 {
  22         /* Skip if DPTF driver in use since TCPU device will already exist */
  23         if (CONFIG(DRIVERS_INTEL_DPTF))
  24                 return;
  25
  26         const char *scope = acpi_device_scope(dev);
  27
  28         if (!scope)
  29                 return;
  30
  31         acpigen_write_scope(scope);
  32         acpigen_write_device(soc_acpi_name(dev));
  33         acpigen_write_ADR_pci_device(dev);
  34         acpigen_write_STA(acpi_device_status(dev));
  35         acpigen_pop_len(); /* Device */
  36         acpigen_pop_len(); /* Scope */
  37 }
  38
  39 static struct device_operations dptf_dev_ops = {
  40         .read_resources                 = pci_dev_read_resources,
  41         .set_resources                  = pci_dev_set_resources,
  42         .enable_resources               = pci_dev_enable_resources,
  43         .scan_bus                       = scan_generic_bus,
  44         .ops_pci                        = &pci_dev_ops_pci,
  45 #if CONFIG(HAVE_ACPI_TABLES)
  46         .acpi_fill_ssdt                 = dtt_acpi_fill_ssdt,
  47 #endif
  48 };
  49
  50 static const struct pci_driver pch_dptf __pci_driver = {
  51         .ops                            = &dptf_dev_ops,
  52         .vendor                         = PCI_VID_INTEL,
  53         .devices                        = pci_device_ids,
  54 };