include/linux/regulator/max1586.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * max1586.h  --  Voltage regulation for the Maxim 1586
   4  *
   5  * Copyright (C) 2008 Robert Jarzmik
   6  */
   7
   8 #ifndef REGULATOR_MAX1586
   9 #define REGULATOR_MAX1586
  10
  11 #include <linux/regulator/machine.h>
  12
  13 #define MAX1586_V3 0
  14 #define MAX1586_V6 1
  15
  16 /* precalculated values for v3_gain */
  17 #define MAX1586_GAIN_NO_R24   1000000  /* 700000 .. 1475000 mV */
  18 #define MAX1586_GAIN_R24_3k32 1051098  /* 735768 .. 1550369 mV */
  19 #define MAX1586_GAIN_R24_5k11 1078648  /* 755053 .. 1591005 mV */
  20 #define MAX1586_GAIN_R24_7k5  1115432  /* 780802 .. 1645262 mV */
  21
  22 /**
  23  * max1586_subdev_data - regulator data
  24  * @id: regulator Id (either MAX1586_V3 or MAX1586_V6)
  25  * @name: regulator cute name (example for V3: "vcc_core")
  26  * @platform_data: regulator init data (constraints, supplies, ...)
  27  */
  28 struct max1586_subdev_data {
  29         int                             id;
  30         const char                      *name;
  31         struct regulator_init_data      *platform_data;
  32 };
  33
  34 /**
  35  * max1586_platform_data - platform data for max1586
  36  * @num_subdevs: number of regulators used (may be 1 or 2)
  37  * @subdevs: regulator used
  38  *           At most, there will be a regulator for V3 and one for V6 voltages.
  39  * @v3_gain: gain on the V3 voltage output multiplied by 1e6.
  40  *           This can be calculated as ((1 + R24/R25 + R24/185.5kOhm) * 1e6)
  41  *           for an external resistor configuration as described in the
  42  *           data sheet (R25=100kOhm).
  43  */
  44 struct max1586_platform_data {
  45         int num_subdevs;
  46         struct max1586_subdev_data *subdevs;
  47         int v3_gain;
  48 };
  49
  50 #endif