src/mainboard/lenovo/t400/cstates.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <acpi/acpigen.h>
   4
   5 static const acpi_cstate_t cst_entries[] = {
   6         {
   7                 /* ACPI C1 / CPU C1 */
   8                 1, 0x01, 1000,
   9                 { ACPI_ADDRESS_SPACE_FIXED, 1, 2, 1, 0, 0 }
  10         },
  11         {
  12                 /* ACPI C2 / CPU C2 */
  13                 2, 0x01,  500,
  14                 { ACPI_ADDRESS_SPACE_FIXED, 1, 2, 1, 0x10, 0 }
  15         },
  16         {
  17                 /* acpi C3 / cpu C3 */
  18                 3, 0x37,  250,
  19                 { ACPI_ADDRESS_SPACE_FIXED, 1, 2, 1, 0x20, 0 }
  20         },
  21 };
  22
  23 int get_cst_entries(const acpi_cstate_t **entries)
  24 {
  25         *entries = cst_entries;
  26         return ARRAY_SIZE(cst_entries);
  27 }