projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 55f4fa4e RJ |
1 | /* |
| 2 | * max1586.h -- Voltage regulation for the Maxim 1586 | |
| 3 | * | |
| 4 | * Copyright (C) 2008 Robert Jarzmik | |
| 5 | * | |
| 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. | |
| 10 | * | |
| 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. | |
| 15 | * | |
| 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 | |
| 19 | */ | |
| 20 | ||
| 21 | #ifndef REGULATOR_MAX1586 | |
| 22 | #define REGULATOR_MAX1586 | |
| 23 | ||
| 24 | #include <linux/regulator/machine.h> | |
| 25 | ||
| 26 | #define MAX1586_V3 0 | |
| 27 | #define MAX1586_V6 1 | |
| 28 | ||
| b110a8fb PZ |
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 */ | |
| 34 | ||
| 55f4fa4e RJ |
35 | /** |
| 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") | |
| 2e7e65ce | 39 | * @platform_data: regulator init data (constraints, supplies, ...) |
| 55f4fa4e RJ |
40 | */ |
| 41 | struct max1586_subdev_data { | |
| 42 | int id; | |
| 43 | char *name; | |
| 44 | struct regulator_init_data *platform_data; | |
| 45 | }; | |
| 46 | ||
| 47 | /** | |
| 48 | * max1586_platform_data - platform data for max1586 | |
| 2e7e65ce | 49 | * @num_subdevs: number of regulators used (may be 1 or 2) |
| 55f4fa4e RJ |
50 | * @subdevs: regulator used |
| 51 | * At most, there will be a regulator for V3 and one for V6 voltages. | |
| b110a8fb PZ |
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). | |
| 55f4fa4e RJ |
56 | */ |
| 57 | struct max1586_platform_data { | |
| 58 | int num_subdevs; | |
| 59 | struct max1586_subdev_data *subdevs; | |
| b110a8fb | 60 | int v3_gain; |
| 55f4fa4e RJ |
61 | }; |
| 62 | ||
| 63 | #endif |