src/mainboard/google/geralt/regulator.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <console/console.h>
   4 #include <soc/mt6359p.h>
   5 #include <soc/regulator.h>
   6
   7 #define MTK_REGULATOR_INVALID -1
   8
   9 static int get_mt6359p_regulator_id(enum mtk_regulator regulator)
  10 {
  11         switch (regulator) {
  12         case MTK_REGULATOR_VCORE:
  13                 return MT6359P_GPU11;
  14         case MTK_REGULATOR_VPROC11:
  15                 return MT6359P_CORE;
  16         case MTK_REGULATOR_VSRAM_PROC11:
  17                 return MT6359P_SRAM_PROC1;
  18         case MTK_REGULATOR_VMCH:
  19                 return MT6359P_PA;
  20         case MTK_REGULATOR_VMC:
  21                 return MT6359P_SIM1;
  22         case MTK_REGULATOR_VDD18:
  23                 return MT6359P_VM18;
  24         default:
  25                 return MTK_REGULATOR_INVALID;
  26         }
  27 }
  28
  29 void mainboard_set_regulator_voltage(enum mtk_regulator regulator, uint32_t voltage_uv)
  30 {
  31         int id;
  32
  33         id = get_mt6359p_regulator_id(regulator);
  34         if (id < 0) {
  35                 printk(BIOS_ERR, "Invalid regulator ID: %d\n", regulator);
  36                 return;
  37         }
  38
  39         if (id == MT6359P_SIM1)
  40                 mt6359p_set_vsim1_voltage(voltage_uv);
  41         else
  42                 mt6359p_buck_set_voltage(id, voltage_uv);
  43 }
  44
  45 uint32_t mainboard_get_regulator_voltage(enum mtk_regulator regulator)
  46 {
  47         int id;
  48
  49         id = get_mt6359p_regulator_id(regulator);
  50         if (id < 0) {
  51                 printk(BIOS_ERR, "Invalid regulator ID: %d\n", regulator);
  52                 return 0;
  53         }
  54
  55         if (id == MT6359P_SIM1)
  56                 return mt6359p_get_vsim1_voltage();
  57
  58         return mt6359p_buck_get_voltage(id);
  59 }
  60
  61 int mainboard_enable_regulator(enum mtk_regulator regulator, bool enable)
  62 {
  63         int id;
  64
  65         id = get_mt6359p_regulator_id(regulator);
  66         if (id < 0) {
  67                 printk(BIOS_ERR, "Invalid regulator ID: %d\n", regulator);
  68                 return -1;
  69         }
  70
  71         if (id == MT6359P_SIM1)
  72                 mt6359p_enable_vsim1(enable);
  73         else if (id == MT6359P_PA)
  74                 mt6359p_enable_vpa(enable);
  75         else if (id == MT6359P_VM18)
  76                 mt6359p_enable_vm18(enable);
  77         else
  78                 printk(BIOS_INFO, "No need to enable regulator ID: %d\n", regulator);
  79
  80         return 0;
  81 }