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|
/*
* Regulator Driver for Freescale MC13783 PMIC
*
* Copyright (C) 2008 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
* Copyright 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/mfd/mc13783.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/driver.h>
#include <linux/platform_device.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/err.h>
#define MC13783_REG_SWITCHERS5 29
#define MC13783_REG_SWITCHERS5_SW3EN (1 << 20)
#define MC13783_REG_SWITCHERS5_SW3VSEL 18
#define MC13783_REG_SWITCHERS5_SW3VSEL_M (3 << 18)
#define MC13783_REG_REGULATORSETTING0 30
#define MC13783_REG_REGULATORSETTING0_VIOLOVSEL 2
#define MC13783_REG_REGULATORSETTING0_VDIGVSEL 4
#define MC13783_REG_REGULATORSETTING0_VGENVSEL 6
#define MC13783_REG_REGULATORSETTING0_VRFDIGVSEL 9
#define MC13783_REG_REGULATORSETTING0_VRFREFVSEL 11
#define MC13783_REG_REGULATORSETTING0_VRFCPVSEL 13
#define MC13783_REG_REGULATORSETTING0_VSIMVSEL 14
#define MC13783_REG_REGULATORSETTING0_VESIMVSEL 15
#define MC13783_REG_REGULATORSETTING0_VCAMVSEL 16
#define MC13783_REG_REGULATORSETTING0_VIOLOVSEL_M (3 << 2)
#define MC13783_REG_REGULATORSETTING0_VDIGVSEL_M (3 << 4)
#define MC13783_REG_REGULATORSETTING0_VGENVSEL_M (7 << 6)
#define MC13783_REG_REGULATORSETTING0_VRFDIGVSEL_M (3 << 9)
#define MC13783_REG_REGULATORSETTING0_VRFREFVSEL_M (3 << 11)
#define MC13783_REG_REGULATORSETTING0_VRFCPVSEL_M (1 << 13)
#define MC13783_REG_REGULATORSETTING0_VSIMVSEL_M (1 << 14)
#define MC13783_REG_REGULATORSETTING0_VESIMVSEL_M (1 << 15)
#define MC13783_REG_REGULATORSETTING0_VCAMVSEL_M (7 << 16)
#define MC13783_REG_REGULATORSETTING1 31
#define MC13783_REG_REGULATORSETTING1_VVIBVSEL 0
#define MC13783_REG_REGULATORSETTING1_VRF1VSEL 2
#define MC13783_REG_REGULATORSETTING1_VRF2VSEL 4
#define MC13783_REG_REGULATORSETTING1_VMMC1VSEL 6
#define MC13783_REG_REGULATORSETTING1_VMMC2VSEL 9
#define MC13783_REG_REGULATORSETTING1_VVIBVSEL_M (3 << 0)
#define MC13783_REG_REGULATORSETTING1_VRF1VSEL_M (3 << 2)
#define MC13783_REG_REGULATORSETTING1_VRF2VSEL_M (3 << 4)
#define MC13783_REG_REGULATORSETTING1_VMMC1VSEL_M (7 << 6)
#define MC13783_REG_REGULATORSETTING1_VMMC2VSEL_M (7 << 9)
#define MC13783_REG_REGULATORMODE0 32
#define MC13783_REG_REGULATORMODE0_VAUDIOEN (1 << 0)
#define MC13783_REG_REGULATORMODE0_VIOHIEN (1 << 3)
#define MC13783_REG_REGULATORMODE0_VIOLOEN (1 << 6)
#define MC13783_REG_REGULATORMODE0_VDIGEN (1 << 9)
#define MC13783_REG_REGULATORMODE0_VGENEN (1 << 12)
#define MC13783_REG_REGULATORMODE0_VRFDIGEN (1 << 15)
#define MC13783_REG_REGULATORMODE0_VRFREFEN (1 << 18)
#define MC13783_REG_REGULATORMODE0_VRFCPEN (1 << 21)
#define MC13783_REG_REGULATORMODE1 33
#define MC13783_REG_REGULATORMODE1_VSIMEN (1 << 0)
#define MC13783_REG_REGULATORMODE1_VESIMEN (1 << 3)
#define MC13783_REG_REGULATORMODE1_VCAMEN (1 << 6)
#define MC13783_REG_REGULATORMODE1_VRFBGEN (1 << 9)
#define MC13783_REG_REGULATORMODE1_VVIBEN (1 << 11)
#define MC13783_REG_REGULATORMODE1_VRF1EN (1 << 12)
#define MC13783_REG_REGULATORMODE1_VRF2EN (1 << 15)
#define MC13783_REG_REGULATORMODE1_VMMC1EN (1 << 18)
#define MC13783_REG_REGULATORMODE1_VMMC2EN (1 << 21)
#define MC13783_REG_POWERMISC 34
#define MC13783_REG_POWERMISC_GPO1EN (1 << 6)
#define MC13783_REG_POWERMISC_GPO2EN (1 << 8)
#define MC13783_REG_POWERMISC_GPO3EN (1 << 10)
#define MC13783_REG_POWERMISC_GPO4EN (1 << 12)
#define MC13783_REG_POWERMISC_PWGT1SPIEN (1 << 15)
#define MC13783_REG_POWERMISC_PWGT2SPIEN (1 << 16)
#define MC13783_REG_POWERMISC_PWGTSPI_M (3 << 15)
struct mc13783_regulator {
struct regulator_desc desc;
int reg;
int enable_bit;
int vsel_reg;
int vsel_shift;
int vsel_mask;
int const *voltages;
};
/* Voltage Values */
static const int mc13783_sw3_val[] = {
5000000, 5000000, 5000000, 5500000,
};
static const int mc13783_vaudio_val[] = {
2775000,
};
static const int mc13783_viohi_val[] = {
2775000,
};
static const int mc13783_violo_val[] = {
1200000, 1300000, 1500000, 1800000,
};
static const int mc13783_vdig_val[] = {
1200000, 1300000, 1500000, 1800000,
};
static const int mc13783_vgen_val[] = {
1200000, 1300000, 1500000, 1800000,
1100000, 2000000, 2775000, 2400000,
};
static const int mc13783_vrfdig_val[] = {
1200000, 1500000, 1800000, 1875000,
};
static const int mc13783_vrfref_val[] = {
2475000, 2600000, 2700000, 2775000,
};
static const int mc13783_vrfcp_val[] = {
2700000, 2775000,
};
static const int mc13783_vsim_val[] = {
1800000, 2900000, 3000000,
};
static const int mc13783_vesim_val[] = {
1800000, 2900000,
};
static const int mc13783_vcam_val[] = {
1500000, 1800000, 2500000, 2550000,
2600000, 2750000, 2800000, 3000000,
};
static const int mc13783_vrfbg_val[] = {
1250000,
};
static const int mc13783_vvib_val[] = {
1300000, 1800000, 2000000, 3000000,
};
static const int mc13783_vmmc_val[] = {
1600000, 1800000, 2000000, 2600000,
2700000, 2800000, 2900000, 3000000,
};
static const int mc13783_vrf_val[] = {
1500000, 1875000, 2700000, 2775000,
};
static const int mc13783_gpo_val[] = {
3100000,
};
static const int mc13783_pwgtdrv_val[] = {
5500000,
};
static struct regulator_ops mc13783_regulator_ops;
static struct regulator_ops mc13783_fixed_regulator_ops;
static struct regulator_ops mc13783_gpo_regulator_ops;
#define MC13783_DEFINE(prefix, _name, _reg, _vsel_reg, _voltages) \
[MC13783_ ## prefix ## _ ## _name] = { \
.desc = { \
.name = #prefix "_" #_name, \
.n_voltages = ARRAY_SIZE(_voltages), \
.ops = &mc13783_regulator_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MC13783_ ## prefix ## _ ## _name, \
.owner = THIS_MODULE, \
}, \
.reg = MC13783_REG_ ## _reg, \
.enable_bit = MC13783_REG_ ## _reg ## _ ## _name ## EN, \
.vsel_reg = MC13783_REG_ ## _vsel_reg, \
.vsel_shift = MC13783_REG_ ## _vsel_reg ## _ ## _name ## VSEL,\
.vsel_mask = MC13783_REG_ ## _vsel_reg ## _ ## _name ## VSEL_M,\
.voltages = _voltages, \
}
#define MC13783_FIXED_DEFINE(prefix, _name, _reg, _voltages) \
[MC13783_ ## prefix ## _ ## _name] = { \
.desc = { \
.name = #prefix "_" #_name, \
.n_voltages = ARRAY_SIZE(_voltages), \
.ops = &mc13783_fixed_regulator_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MC13783_ ## prefix ## _ ## _name, \
.owner = THIS_MODULE, \
}, \
.reg = MC13783_REG_ ## _reg, \
.enable_bit = MC13783_REG_ ## _reg ## _ ## _name ## EN, \
.voltages = _voltages, \
}
#define MC13783_GPO_DEFINE(prefix, _name, _reg, _voltages) \
[MC13783_ ## prefix ## _ ## _name] = { \
.desc = { \
.name = #prefix "_" #_name, \
.n_voltages = ARRAY_SIZE(_voltages), \
.ops = &mc13783_gpo_regulator_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MC13783_ ## prefix ## _ ## _name, \
.owner = THIS_MODULE, \
}, \
.reg = MC13783_REG_ ## _reg, \
.enable_bit = MC13783_REG_ ## _reg ## _ ## _name ## EN, \
.voltages = _voltages, \
}
#define MC13783_DEFINE_SW(_name, _reg, _vsel_reg, _voltages) \
MC13783_DEFINE(SW, _name, _reg, _vsel_reg, _voltages)
#define MC13783_DEFINE_REGU(_name, _reg, _vsel_reg, _voltages) \
MC13783_DEFINE(REGU, _name, _reg, _vsel_reg, _voltages)
static struct mc13783_regulator mc13783_regulators[] = {
MC13783_DEFINE_SW(SW3, SWITCHERS5, SWITCHERS5, mc13783_sw3_val),
MC13783_FIXED_DEFINE(REGU, VAUDIO, REGULATORMODE0, mc13783_vaudio_val),
MC13783_FIXED_DEFINE(REGU, VIOHI, REGULATORMODE0, mc13783_viohi_val),
MC13783_DEFINE_REGU(VIOLO, REGULATORMODE0, REGULATORSETTING0, \
mc13783_violo_val),
MC13783_DEFINE_REGU(VDIG, REGULATORMODE0, REGULATORSETTING0, \
mc13783_vdig_val),
MC13783_DEFINE_REGU(VGEN, REGULATORMODE0, REGULATORSETTING0, \
mc13783_vgen_val),
MC13783_DEFINE_REGU(VRFDIG, REGULATORMODE0, REGULATORSETTING0, \
mc13783_vrfdig_val),
MC13783_DEFINE_REGU(VRFREF, REGULATORMODE0, REGULATORSETTING0, \
mc13783_vrfref_val),
MC13783_DEFINE_REGU(VRFCP, REGULATORMODE0, REGULATORSETTING0, \
mc13783_vrfcp_val),
MC13783_DEFINE_REGU(VSIM, REGULATORMODE1, REGULATORSETTING0, \
mc13783_vsim_val),
MC13783_DEFINE_REGU(VESIM, REGULATORMODE1, REGULATORSETTING0, \
mc13783_vesim_val),
MC13783_DEFINE_REGU(VCAM, REGULATORMODE1, REGULATORSETTING0, \
mc13783_vcam_val),
MC13783_FIXED_DEFINE(REGU, VRFBG, REGULATORMODE1, mc13783_vrfbg_val),
MC13783_DEFINE_REGU(VVIB, REGULATORMODE1, REGULATORSETTING1, \
mc13783_vvib_val),
MC13783_DEFINE_REGU(VRF1, REGULATORMODE1, REGULATORSETTING1, \
mc13783_vrf_val),
MC13783_DEFINE_REGU(VRF2, REGULATORMODE1, REGULATORSETTING1, \
mc13783_vrf_val),
MC13783_DEFINE_REGU(VMMC1, REGULATORMODE1, REGULATORSETTING1, \
mc13783_vmmc_val),
MC13783_DEFINE_REGU(VMMC2, REGULATORMODE1, REGULATORSETTING1, \
mc13783_vmmc_val),
MC13783_GPO_DEFINE(REGU, GPO1, POWERMISC, mc13783_gpo_val),
MC13783_GPO_DEFINE(REGU, GPO2, POWERMISC, mc13783_gpo_val),
MC13783_GPO_DEFINE(REGU, GPO3, POWERMISC, mc13783_gpo_val),
MC13783_GPO_DEFINE(REGU, GPO4, POWERMISC, mc13783_gpo_val),
MC13783_GPO_DEFINE(REGU, PWGT1SPI, POWERMISC, mc13783_pwgtdrv_val),
MC13783_GPO_DEFINE(REGU, PWGT2SPI, POWERMISC, mc13783_pwgtdrv_val),
};
struct mc13783_regulator_priv {
struct mc13783 *mc13783;
u32 powermisc_pwgt_state;
struct regulator_dev *regulators[];
};
static int mc13783_regulator_enable(struct regulator_dev *rdev)
{
struct mc13783_regulator_priv *
|