2 * max1586.h -- Voltage regulation for the Maxim 1586
4 * Copyright (C) 2008 Robert Jarzmik
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 #ifndef REGULATOR_MAX1586
22 #define REGULATOR_MAX1586
24 #include <linux/regulator/machine.h>
29 /* precalculated values for v3_gain */
30 #define MAX1586_GAIN_NO_R24 1000000 /* 700000 .. 1475000 mV */
31 #define MAX1586_GAIN_R24_3k32 1051098 /* 735768 .. 1550369 mV */
32 #define MAX1586_GAIN_R24_5k11 1078648 /* 755053 .. 1591005 mV */
33 #define MAX1586_GAIN_R24_7k5 1115432 /* 780802 .. 1645262 mV */
36 * max1586_subdev_data - regulator data
37 * @id: regulator Id (either MAX1586_V3 or MAX1586_V6)
38 * @name: regulator cute name (example for V3: "vcc_core")
39 * @platform_data: regulator init data (contraints, supplies, ...)
41 struct max1586_subdev_data {
44 struct regulator_init_data *platform_data;
48 * max1586_platform_data - platform data for max1586
49 * @num_subdevs: number of regultors used (may be 1 or 2)
50 * @subdevs: regulator used
51 * At most, there will be a regulator for V3 and one for V6 voltages.
52 * @v3_gain: gain on the V3 voltage output multiplied by 1e6.
53 * This can be calculated as ((1 + R24/R25 + R24/185.5kOhm) * 1e6)
54 * for an external resistor configuration as described in the
55 * data sheet (R25=100kOhm).
57 struct max1586_platform_data {
59 struct max1586_subdev_data *subdevs;