/* * 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; const 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
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