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Diffstat (limited to 'include/linux/regulator/max1586.h')
| -rw-r--r-- | include/linux/regulator/max1586.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/include/linux/regulator/max1586.h b/include/linux/regulator/max1586.h new file mode 100644 index 000000000..969f4c948 --- /dev/null +++ b/include/linux/regulator/max1586.h @@ -0,0 +1,50 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * max1586.h -- Voltage regulation for the Maxim 1586 + * + * Copyright (C) 2008 Robert Jarzmik + */ + +#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 |