src/mainboard/apple/macbook21/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                 .ctype = 1,
   8                 .latency = 1,
   9                 .power = 1000,
  10                 .resource = {
  11                         .space_id = ACPI_ADDRESS_SPACE_FIXED,
  12                         .bit_width = ACPI_FFIXEDHW_VENDOR_INTEL,
  13                         .bit_offset = ACPI_FFIXEDHW_CLASS_MWAIT,
  14                         .access_size = ACPI_ACCESS_SIZE_UNDEFINED,
  15                         .addrl = 0,
  16                         .addrh = 0,
  17                 }
  18         },
  19         {
  20                 .ctype = 2,
  21                 .latency = 1,
  22                 .power = 500,
  23                 .resource = {
  24                         .space_id = ACPI_ADDRESS_SPACE_FIXED,
  25                         .bit_width = ACPI_FFIXEDHW_VENDOR_INTEL,
  26                         .bit_offset = ACPI_FFIXEDHW_CLASS_MWAIT,
  27                         .access_size = ACPI_ACCESS_SIZE_UNDEFINED,
  28                         .addrl = 0x10,
  29                         .addrh = 0,
  30                 }
  31         },
  32 };
  33
  34 int get_cst_entries(const acpi_cstate_t **entries)
  35 {
  36         *entries = cst_entries;
  37         return ARRAY_SIZE(cst_entries);
  38 }