| /* |
| * max1586.h -- Voltage regulation for the Maxim 1586 |
| * |
| * Copyright (C) 2008 Robert Jarzmik |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| #ifndef REGULATOR_MAX1586 |
| #define REGULATOR_MAX1586 |
| |
| #include <linux/regulator/machine.h> |
| |
| #define MAX1586_V3 0 |
| #define MAX1586_V6 1 |
| |
| /* precalculated values for v3_gain */ |
| #define MAX1586_GAIN_NO_R24 1000000 /* 700000 .. 1475000 mV */ |
| #define MAX1586_GAIN_R24_3k32 1051098 /* 735768 .. 1550369 mV */ |
| #define MAX1586_GAIN_R24_5k11 1078648 /* 755053 .. 1591005 mV */ |
| #define MAX1586_GAIN_R24_7k5 1115432 /* 780802 .. 1645262 mV */ |
| |
| /** |
| * max1586_subdev_data - regulator data |
| * @id: regulator Id (either MAX1586_V3 or MAX1586_V6) |
| * @name: regulator cute name (example for V3: "vcc_core") |
| * @platform_data: regulator init data (constraints, supplies, ...) |
| */ |
| struct max1586_subdev_data { |
| int id; |
| char *name; |
| struct regulator_init_data *platform_data; |
| }; |
| |
| /** |
| * max1586_platform_data - platform data for max1586 |
| * @num_subdevs: number of regulators used (may be 1 or 2) |
| * @subdevs: regulator used |
| * At most, there will be a regulator for V3 and one for V6 voltages. |
| * @v3_gain: gain on the V3 voltage output multiplied by 1e6. |
| * This can be calculated as ((1 + R24/R25 + R24/185.5kOhm) * 1e6) |
| * for an external resistor configuration as described in the |
| * data sheet (R25=100kOhm). |
| */ |
| struct max1586_platform_data { |
| int num_subdevs; |
| struct max1586_subdev_data *subdevs; |
| int v3_gain; |
| }; |
| |
| #endif |
