linux/regulator/max1586.h

0001 /* SPDX-License-Identifier: GPL-2.0-or-later */
0002 /*
0003  * max1586.h  --  Voltage regulation for the Maxim 1586
0004  *
0005  * Copyright (C) 2008 Robert Jarzmik
0006  */
0007
0008 #ifndef REGULATOR_MAX1586
0009 #define REGULATOR_MAX1586
0010
0011 #include <linux/regulator/machine.h>
0012
0013 #define MAX1586_V3 0
0014 #define MAX1586_V6 1
0015
0016 /* precalculated values for v3_gain */
0017 #define MAX1586_GAIN_NO_R24   1000000  /* 700000 .. 1475000 mV */
0018 #define MAX1586_GAIN_R24_3k32 1051098  /* 735768 .. 1550369 mV */
0019 #define MAX1586_GAIN_R24_5k11 1078648  /* 755053 .. 1591005 mV */
0020 #define MAX1586_GAIN_R24_7k5  1115432  /* 780802 .. 1645262 mV */
0021
0022 /**
0023  * max1586_subdev_data - regulator data
0024  * @id: regulator Id (either MAX1586_V3 or MAX1586_V6)
0025  * @name: regulator cute name (example for V3: "vcc_core")
0026  * @platform_data: regulator init data (constraints, supplies, ...)
0027  */
0028 struct max1586_subdev_data {
0029     int             id;
0030     const char          *name;
0031     struct regulator_init_data  *platform_data;
0032 };
0033
0034 /**
0035  * max1586_platform_data - platform data for max1586
0036  * @num_subdevs: number of regulators used (may be 1 or 2)
0037  * @subdevs: regulator used
0038  *           At most, there will be a regulator for V3 and one for V6 voltages.
0039  * @v3_gain: gain on the V3 voltage output multiplied by 1e6.
0040  *           This can be calculated as ((1 + R24/R25 + R24/185.5kOhm) * 1e6)
0041  *           for an external resistor configuration as described in the
0042  *           data sheet (R25=100kOhm).
0043  */
0044 struct max1586_platform_data {
0045     int num_subdevs;
0046     struct max1586_subdev_data *subdevs;
0047     int v3_gain;
0048 };
0049
0050 #endif