[mirror_ubuntu-artful-kernel.git] / drivers / regulator / mc13783-regulator.c

/*
 * Regulator Driver for Freescale MC13783 PMIC
 *
 * Copyright 2010 Yong Shen <yong.shen@linaro.org>
 * 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>
#include <linux/module.h>
#include "mc13xxx.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)


/* Voltage Values */
static const unsigned int mc13783_sw3_val[] = {
	5000000, 5000000, 5000000, 5500000,
};

static const unsigned int mc13783_vaudio_val[] = {
	2775000,
};

static const unsigned int mc13783_viohi_val[] = {
	2775000,
};

static const unsigned int mc13783_violo_val[] = {
	1200000, 1300000, 1500000, 1800000,
};

static const unsigned int mc13783_vdig_val[] = {
	1200000, 1300000, 1500000, 1800000,
};

static const unsigned int mc13783_vgen_val[] = {
	1200000, 1300000, 1500000, 1800000,
	1100000, 2000000, 2775000, 2400000,
};

static const unsigned int mc13783_vrfdig_val[] = {
	1200000, 1500000, 1800000, 1875000,
};

static const unsigned int mc13783_vrfref_val[] = {
	2475000, 2600000, 2700000, 2775000,
};

static const unsigned int mc13783_vrfcp_val[] = {
	2700000, 2775000,
};

static const unsigned int mc13783_vsim_val[] = {
	1800000, 2900000, 3000000,
};

static const unsigned int mc13783_vesim_val[] = {
	1800000, 2900000,
};

static const unsigned int mc13783_vcam_val[] = {
	1500000, 1800000, 2500000, 2550000,
	2600000, 2750000, 2800000, 3000000,
};

static const unsigned int mc13783_vrfbg_val[] = {
	1250000,
};

static const unsigned int mc13783_vvib_val[] = {
	1300000, 1800000, 2000000, 3000000,
};

static const unsigned int mc13783_vmmc_val[] = {
	1600000, 1800000, 2000000, 2600000,
	2700000, 2800000, 2900000, 3000000,
};

static const unsigned int mc13783_vrf_val[] = {
	1500000, 1875000, 2700000, 2775000,
};

static const unsigned int mc13783_gpo_val[] = {
	3100000,
};

static const unsigned int mc13783_pwgtdrv_val[] = {
	5500000,
};

static struct regulator_ops mc13783_gpo_regulator_ops;

#define MC13783_DEFINE(prefix, name, reg, vsel_reg, voltages)	\
	MC13xxx_DEFINE(MC13783_REG_, name, reg, vsel_reg, voltages, \
			mc13xxx_regulator_ops)

#define MC13783_FIXED_DEFINE(prefix, name, reg, voltages)		\
	MC13xxx_FIXED_DEFINE(MC13783_REG_, name, reg, voltages, \
			mc13xxx_fixed_regulator_ops)

#define MC13783_GPO_DEFINE(prefix, name, reg, voltages)		\
	MC13xxx_GPO_DEFINE(MC13783_REG_, name, reg, voltages, \
			mc13783_gpo_regulator_ops)

#define MC13783_DEFINE_SW(_name, _reg, _vsel_reg, _voltages)		\
	MC13783_DEFINE(REG, _name, _reg, _vsel_reg, _voltages)
#define MC13783_DEFINE_REGU(_name, _reg, _vsel_reg, _voltages)		\
	MC13783_DEFINE(REG, _name, _reg, _vsel_reg, _voltages)

static struct mc13xxx_regulator mc13783_regulators[] = {
	MC13783_DEFINE_SW(SW3, SWITCHERS5, SWITCHERS5, mc13783_sw3_val),

	MC13783_FIXED_DEFINE(REG, VAUDIO, REGULATORMODE0, mc13783_vaudio_val),
	MC13783_FIXED_DEFINE(REG, 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(REG, 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(REG, GPO1, POWERMISC, mc13783_gpo_val),
	MC13783_GPO_DEFINE(REG, GPO2, POWERMISC, mc13783_gpo_val),
	MC13783_GPO_DEFINE(REG, GPO3, POWERMISC, mc13783_gpo_val),
	MC13783_GPO_DEFINE(REG, GPO4, POWERMISC, mc13783_gpo_val),
	MC13783_GPO_DEFINE(REG, PWGT1SPI, POWERMISC, mc13783_pwgtdrv_val),
	MC13783_GPO_DEFINE(REG, PWGT2SPI, POWERMISC, mc13783_pwgtdrv_val),
};

static int mc13783_powermisc_rmw(struct mc13xxx_regulator_priv *priv, u32 mask,
		u32 val)
{
	struct mc13xxx *mc13783 = priv->mc13xxx;
	int ret;
	u32 valread;

	BUG_ON(val & ~mask);

	ret = mc13xxx_reg_read(mc13783, MC13783_REG_POWERMISC, &valread);
	if (ret)
		return ret;

	/* Update the stored state for Power Gates. */
	priv->powermisc_pwgt_state =
				(priv->powermisc_pwgt_state & ~mask) | val;
	priv->powermisc_pwgt_state &= MC13783_REG_POWERMISC_PWGTSPI_M;

	/* Construct the new register value */
	valread = (valread & ~mask) | val;
	/* Overwrite the PWGTxEN with the stored version */
	valread = (valread & ~MC13783_REG_POWERMISC_PWGTSPI_M) |
						priv->powermisc_pwgt_state;

	return mc13xxx_reg_write(mc13783, MC13783_REG_POWERMISC, valread);
}

static int mc13783_gpo_regulator_enable(struct regulator_dev *rdev)
{
	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
	int id = rdev_get_id(rdev);
	int ret;
	u32 en_val = mc13xxx_regulators[id].enable_bit;

	dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);

	/* Power Gate enable value is 0 */
	if (id == MC13783_REG_PWGT1SPI ||
	    id == MC13783_REG_PWGT2SPI)
		en_val = 0;

	mc13xxx_lock(priv->mc13xxx);
	ret = mc13783_powermisc_rmw(priv, mc13xxx_regulators[id].enable_bit,
					en_val);
	mc13xxx_unlock(priv->mc13xxx);

	return ret;
}

static int mc13783_gpo_regulator_disable(struct regulator_dev *rdev)
{
	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
	int id = rdev_get_id(rdev);
	int ret;
	u32 dis_val = 0;

	dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);

	/* Power Gate disable value is 1 */
	if (id == MC13783_REG_PWGT1SPI ||
	    id == MC13783_REG_PWGT2SPI)
		dis_val = mc13xxx_regulators[id].enable_bit;

	mc13xxx_lock(priv->mc13xxx);
	ret = mc13783_powermisc_rmw(priv, mc13xxx_regulators[id].enable_bit,
					dis_val);
	mc13xxx_unlock(priv->mc13xxx);

	return ret;
}

static int mc13783_gpo_regulator_is_enabled(struct regulator_dev *rdev)
{
	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
	int ret, id = rdev_get_id(rdev);
	unsigned int val;

	mc13xxx_lock(priv->mc13xxx);
	ret = mc13xxx_reg_read(priv->mc13xxx, mc13xxx_regulators[id].reg, &val);
	mc13xxx_unlock(priv->mc13xxx);

	if (ret)
		return ret;

	/* Power Gates state is stored in powermisc_pwgt_state
	 * where the meaning of bits is negated */
	val = (val & ~MC13783_REG_POWERMISC_PWGTSPI_M) |
	      (priv->powermisc_pwgt_state ^ MC13783_REG_POWERMISC_PWGTSPI_M);

	return (val & mc13xxx_regulators[id].enable_bit) != 0;
}

static struct regulator_ops mc13783_gpo_regulator_ops = {
	.enable = mc13783_gpo_regulator_enable,
	.disable = mc13783_gpo_regulator_disable,
	.is_enabled = mc13783_gpo_regulator_is_enabled,
	.list_voltage = regulator_list_voltage_table,
	.set_voltage = mc13xxx_fixed_regulator_set_voltage,
	.get_voltage = mc13xxx_fixed_regulator_get_voltage,
};

static int __devinit mc13783_regulator_probe(struct platform_device *pdev)
{
	struct mc13xxx_regulator_priv *priv;
	struct mc13xxx *mc13783 = dev_get_drvdata(pdev->dev.parent);
	struct mc13xxx_regulator_platform_data *pdata =
		dev_get_platdata(&pdev->dev);
	struct mc13xxx_regulator_init_data *init_data;
	struct regulator_config config = { };
	int i, ret;

	dev_dbg(&pdev->dev, "%s id %d\n", __func__, pdev->id);

	if (!pdata)
		return -EINVAL;

	priv = devm_kzalloc(&pdev->dev, sizeof(*priv) +
			pdata->num_regulators * sizeof(priv->regulators[0]),
			GFP_KERNEL);
	if (!priv)
		return -ENOMEM;

	priv->mc13xxx_regulators = mc13783_regulators;
	priv->mc13xxx = mc13783;

	for (i = 0; i < pdata->num_regulators; i++) {
		struct regulator_desc *desc;

		init_data = &pdata->regulators[i];
		desc = &mc13783_regulators[init_data->id].desc;

		config.dev = &pdev->dev;
		config.init_data = init_data->init_data;
		config.driver_data = priv;

		priv->regulators[i] = regulator_register(desc, &config);
		if (IS_ERR(priv->regulators[i])) {
			dev_err(&pdev->dev, "failed to register regulator %s\n",
				mc13783_regulators[i].desc.name);
			ret = PTR_ERR(priv->regulators[i]);
			goto err;
		}
	}

	platform_set_drvdata(pdev, priv);

	return 0;
err:
	while (--i >= 0)
		regulator_unregister(priv->regulators[i]);

	return ret;
}

static int __devexit mc13783_regulator_remove(struct platform_device *pdev)
{
	struct mc13xxx_regulator_priv *priv = platform_get_drvdata(pdev);
	struct mc13xxx_regulator_platform_data *pdata =
		dev_get_platdata(&pdev->dev);
	int i;

	platform_set_drvdata(pdev, NULL);

	for (i = 0; i < pdata->num_regulators; i++)
		regulator_unregister(priv->regulators[i]);

	return 0;
}

static struct platform_driver mc13783_regulator_driver = {
	.driver	= {
		.name	= "mc13783-regulator",
		.owner	= THIS_MODULE,
	},
	.remove		= __devexit_p(mc13783_regulator_remove),
	.probe		= mc13783_regulator_probe,
};

static int __init mc13783_regulator_init(void)
{
	return platform_driver_register(&mc13783_regulator_driver);
}
subsys_initcall(mc13783_regulator_init);

static void __exit mc13783_regulator_exit(void)
{
	platform_driver_unregister(&mc13783_regulator_driver);
}
module_exit(mc13783_regulator_exit);

MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
MODULE_DESCRIPTION("Regulator Driver for Freescale MC13783 PMIC");
MODULE_ALIAS("platform:mc13783-regulator");
Commit	Line	Data
295c08bc SH	1	/*
	2	* Regulator Driver for Freescale MC13783 PMIC
	3	*
167e3d8a	4	* Copyright 2010 Yong Shen <yong.shen@linaro.org>
295c08bc	5	* Copyright (C) 2008 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
1bd588fd	6	* Copyright 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
295c08bc SH	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License version 2 as
	10	* published by the Free Software Foundation.
	11	*/
	12
a10099bc	13	#include <linux/mfd/mc13783.h>
295c08bc SH	14	#include <linux/regulator/machine.h>
	15	#include <linux/regulator/driver.h>
	16	#include <linux/platform_device.h>
295c08bc	17	#include <linux/kernel.h>
5a0e3ad6	18	#include <linux/slab.h>
295c08bc SH	19	#include <linux/init.h>
295c08bc SH	20	#include <linux/err.h>
65602c32	21	#include <linux/module.h>
167e3d8a	22	#include "mc13xxx.h"
295c08bc	23
a10099bc UKK	24	#define MC13783_REG_SWITCHERS5 29
a10099bc UKK	25	#define MC13783_REG_SWITCHERS5_SW3EN (1 << 20)
1bd588fd AP	26	#define MC13783_REG_SWITCHERS5_SW3VSEL 18
	27	#define MC13783_REG_SWITCHERS5_SW3VSEL_M (3 << 18)
	28
	29	#define MC13783_REG_REGULATORSETTING0 30
	30	#define MC13783_REG_REGULATORSETTING0_VIOLOVSEL 2
	31	#define MC13783_REG_REGULATORSETTING0_VDIGVSEL 4
	32	#define MC13783_REG_REGULATORSETTING0_VGENVSEL 6
	33	#define MC13783_REG_REGULATORSETTING0_VRFDIGVSEL 9
	34	#define MC13783_REG_REGULATORSETTING0_VRFREFVSEL 11
	35	#define MC13783_REG_REGULATORSETTING0_VRFCPVSEL 13
	36	#define MC13783_REG_REGULATORSETTING0_VSIMVSEL 14
	37	#define MC13783_REG_REGULATORSETTING0_VESIMVSEL 15
	38	#define MC13783_REG_REGULATORSETTING0_VCAMVSEL 16
	39
	40	#define MC13783_REG_REGULATORSETTING0_VIOLOVSEL_M (3 << 2)
	41	#define MC13783_REG_REGULATORSETTING0_VDIGVSEL_M (3 << 4)
	42	#define MC13783_REG_REGULATORSETTING0_VGENVSEL_M (7 << 6)
	43	#define MC13783_REG_REGULATORSETTING0_VRFDIGVSEL_M (3 << 9)
	44	#define MC13783_REG_REGULATORSETTING0_VRFREFVSEL_M (3 << 11)
	45	#define MC13783_REG_REGULATORSETTING0_VRFCPVSEL_M (1 << 13)
	46	#define MC13783_REG_REGULATORSETTING0_VSIMVSEL_M (1 << 14)
	47	#define MC13783_REG_REGULATORSETTING0_VESIMVSEL_M (1 << 15)
	48	#define MC13783_REG_REGULATORSETTING0_VCAMVSEL_M (7 << 16)
	49
	50	#define MC13783_REG_REGULATORSETTING1 31
	51	#define MC13783_REG_REGULATORSETTING1_VVIBVSEL 0
	52	#define MC13783_REG_REGULATORSETTING1_VRF1VSEL 2
	53	#define MC13783_REG_REGULATORSETTING1_VRF2VSEL 4
	54	#define MC13783_REG_REGULATORSETTING1_VMMC1VSEL 6
	55	#define MC13783_REG_REGULATORSETTING1_VMMC2VSEL 9
	56
	57	#define MC13783_REG_REGULATORSETTING1_VVIBVSEL_M (3 << 0)
	58	#define MC13783_REG_REGULATORSETTING1_VRF1VSEL_M (3 << 2)
	59	#define MC13783_REG_REGULATORSETTING1_VRF2VSEL_M (3 << 4)
	60	#define MC13783_REG_REGULATORSETTING1_VMMC1VSEL_M (7 << 6)
	61	#define MC13783_REG_REGULATORSETTING1_VMMC2VSEL_M (7 << 9)
a10099bc UKK	62
	63	#define MC13783_REG_REGULATORMODE0 32
	64	#define MC13783_REG_REGULATORMODE0_VAUDIOEN (1 << 0)
	65	#define MC13783_REG_REGULATORMODE0_VIOHIEN (1 << 3)
	66	#define MC13783_REG_REGULATORMODE0_VIOLOEN (1 << 6)
	67	#define MC13783_REG_REGULATORMODE0_VDIGEN (1 << 9)
	68	#define MC13783_REG_REGULATORMODE0_VGENEN (1 << 12)
	69	#define MC13783_REG_REGULATORMODE0_VRFDIGEN (1 << 15)
	70	#define MC13783_REG_REGULATORMODE0_VRFREFEN (1 << 18)
	71	#define MC13783_REG_REGULATORMODE0_VRFCPEN (1 << 21)
	72
	73	#define MC13783_REG_REGULATORMODE1 33
	74	#define MC13783_REG_REGULATORMODE1_VSIMEN (1 << 0)
	75	#define MC13783_REG_REGULATORMODE1_VESIMEN (1 << 3)
	76	#define MC13783_REG_REGULATORMODE1_VCAMEN (1 << 6)
	77	#define MC13783_REG_REGULATORMODE1_VRFBGEN (1 << 9)
	78	#define MC13783_REG_REGULATORMODE1_VVIBEN (1 << 11)
	79	#define MC13783_REG_REGULATORMODE1_VRF1EN (1 << 12)
	80	#define MC13783_REG_REGULATORMODE1_VRF2EN (1 << 15)
	81	#define MC13783_REG_REGULATORMODE1_VMMC1EN (1 << 18)
	82	#define MC13783_REG_REGULATORMODE1_VMMC2EN (1 << 21)
	83
	84	#define MC13783_REG_POWERMISC 34
	85	#define MC13783_REG_POWERMISC_GPO1EN (1 << 6)
	86	#define MC13783_REG_POWERMISC_GPO2EN (1 << 8)
	87	#define MC13783_REG_POWERMISC_GPO3EN (1 << 10)
	88	#define MC13783_REG_POWERMISC_GPO4EN (1 << 12)
f4b97b36 AP	89	#define MC13783_REG_POWERMISC_PWGT1SPIEN (1 << 15)
	90	#define MC13783_REG_POWERMISC_PWGT2SPIEN (1 << 16)
	91
	92	#define MC13783_REG_POWERMISC_PWGTSPI_M (3 << 15)
	93
a10099bc	94
1bd588fd	95	/* Voltage Values */
34e74f39	96	static const unsigned int mc13783_sw3_val[] = {
1bd588fd AP	97	5000000, 5000000, 5000000, 5500000,
	98	};
	99
34e74f39	100	static const unsigned int mc13783_vaudio_val[] = {
1bd588fd AP	101	2775000,
	102	};
	103
34e74f39	104	static const unsigned int mc13783_viohi_val[] = {
1bd588fd AP	105	2775000,
	106	};
	107
34e74f39	108	static const unsigned int mc13783_violo_val[] = {
1bd588fd AP	109	1200000, 1300000, 1500000, 1800000,
	110	};
	111
34e74f39	112	static const unsigned int mc13783_vdig_val[] = {
1bd588fd AP	113	1200000, 1300000, 1500000, 1800000,
	114	};
	115
34e74f39	116	static const unsigned int mc13783_vgen_val[] = {
1bd588fd AP	117	1200000, 1300000, 1500000, 1800000,
	118	1100000, 2000000, 2775000, 2400000,
	119	};
	120
34e74f39	121	static const unsigned int mc13783_vrfdig_val[] = {
1bd588fd AP	122	1200000, 1500000, 1800000, 1875000,
	123	};
	124
34e74f39	125	static const unsigned int mc13783_vrfref_val[] = {
1bd588fd AP	126	2475000, 2600000, 2700000, 2775000,
	127	};
	128
34e74f39	129	static const unsigned int mc13783_vrfcp_val[] = {
1bd588fd AP	130	2700000, 2775000,
	131	};
	132
34e74f39	133	static const unsigned int mc13783_vsim_val[] = {
1bd588fd AP	134	1800000, 2900000, 3000000,
	135	};
	136
34e74f39	137	static const unsigned int mc13783_vesim_val[] = {
1bd588fd AP	138	1800000, 2900000,
	139	};
	140
34e74f39	141	static const unsigned int mc13783_vcam_val[] = {
1bd588fd AP	142	1500000, 1800000, 2500000, 2550000,
	143	2600000, 2750000, 2800000, 3000000,
	144	};
	145
34e74f39	146	static const unsigned int mc13783_vrfbg_val[] = {
1bd588fd AP	147	1250000,
	148	};
	149
34e74f39	150	static const unsigned int mc13783_vvib_val[] = {
1bd588fd AP	151	1300000, 1800000, 2000000, 3000000,
	152	};
	153
34e74f39	154	static const unsigned int mc13783_vmmc_val[] = {
1bd588fd AP	155	1600000, 1800000, 2000000, 2600000,
	156	2700000, 2800000, 2900000, 3000000,
	157	};
	158
34e74f39	159	static const unsigned int mc13783_vrf_val[] = {
1bd588fd	160	1500000, 1875000, 2700000, 2775000,
295c08bc SH	161	};
295c08bc SH	162
34e74f39	163	static const unsigned int mc13783_gpo_val[] = {
f4b97b36 AP	164	3100000,
	165	};
	166
34e74f39	167	static const unsigned int mc13783_pwgtdrv_val[] = {
f4b97b36 AP	168	5500000,
	169	};
	170
f4b97b36	171	static struct regulator_ops mc13783_gpo_regulator_ops;
1bd588fd	172
167e3d8a YS	173	#define MC13783_DEFINE(prefix, name, reg, vsel_reg, voltages) \
	174	MC13xxx_DEFINE(MC13783_REG_, name, reg, vsel_reg, voltages, \
	175	mc13xxx_regulator_ops)
295c08bc	176
167e3d8a YS	177	#define MC13783_FIXED_DEFINE(prefix, name, reg, voltages) \
	178	MC13xxx_FIXED_DEFINE(MC13783_REG_, name, reg, voltages, \
	179	mc13xxx_fixed_regulator_ops)
1bd588fd	180
167e3d8a YS	181	#define MC13783_GPO_DEFINE(prefix, name, reg, voltages) \
	182	MC13xxx_GPO_DEFINE(MC13783_REG_, name, reg, voltages, \
	183	mc13783_gpo_regulator_ops)
a10099bc	184
1bd588fd	185	#define MC13783_DEFINE_SW(_name, _reg, _vsel_reg, _voltages) \
57c78e35	186	MC13783_DEFINE(REG, _name, _reg, _vsel_reg, _voltages)
1bd588fd	187	#define MC13783_DEFINE_REGU(_name, _reg, _vsel_reg, _voltages) \
57c78e35	188	MC13783_DEFINE(REG, _name, _reg, _vsel_reg, _voltages)
a10099bc	189
167e3d8a	190	static struct mc13xxx_regulator mc13783_regulators[] = {
1bd588fd AP	191	MC13783_DEFINE_SW(SW3, SWITCHERS5, SWITCHERS5, mc13783_sw3_val),
1bd588fd AP	192
57c78e35 YS	193	MC13783_FIXED_DEFINE(REG, VAUDIO, REGULATORMODE0, mc13783_vaudio_val),
57c78e35 YS	194	MC13783_FIXED_DEFINE(REG, VIOHI, REGULATORMODE0, mc13783_viohi_val),
1bd588fd AP	195	MC13783_DEFINE_REGU(VIOLO, REGULATORMODE0, REGULATORSETTING0, \
	196	mc13783_violo_val),
	197	MC13783_DEFINE_REGU(VDIG, REGULATORMODE0, REGULATORSETTING0, \
	198	mc13783_vdig_val),
	199	MC13783_DEFINE_REGU(VGEN, REGULATORMODE0, REGULATORSETTING0, \
	200	mc13783_vgen_val),
	201	MC13783_DEFINE_REGU(VRFDIG, REGULATORMODE0, REGULATORSETTING0, \
	202	mc13783_vrfdig_val),
	203	MC13783_DEFINE_REGU(VRFREF, REGULATORMODE0, REGULATORSETTING0, \
	204	mc13783_vrfref_val),
	205	MC13783_DEFINE_REGU(VRFCP, REGULATORMODE0, REGULATORSETTING0, \
	206	mc13783_vrfcp_val),
	207	MC13783_DEFINE_REGU(VSIM, REGULATORMODE1, REGULATORSETTING0, \
	208	mc13783_vsim_val),
	209	MC13783_DEFINE_REGU(VESIM, REGULATORMODE1, REGULATORSETTING0, \
	210	mc13783_vesim_val),
	211	MC13783_DEFINE_REGU(VCAM, REGULATORMODE1, REGULATORSETTING0, \
	212	mc13783_vcam_val),
57c78e35	213	MC13783_FIXED_DEFINE(REG, VRFBG, REGULATORMODE1, mc13783_vrfbg_val),
1bd588fd AP	214	MC13783_DEFINE_REGU(VVIB, REGULATORMODE1, REGULATORSETTING1, \
	215	mc13783_vvib_val),
	216	MC13783_DEFINE_REGU(VRF1, REGULATORMODE1, REGULATORSETTING1, \
	217	mc13783_vrf_val),
	218	MC13783_DEFINE_REGU(VRF2, REGULATORMODE1, REGULATORSETTING1, \
	219	mc13783_vrf_val),
	220	MC13783_DEFINE_REGU(VMMC1, REGULATORMODE1, REGULATORSETTING1, \
	221	mc13783_vmmc_val),
	222	MC13783_DEFINE_REGU(VMMC2, REGULATORMODE1, REGULATORSETTING1, \
	223	mc13783_vmmc_val),
57c78e35 YS	224	MC13783_GPO_DEFINE(REG, GPO1, POWERMISC, mc13783_gpo_val),
	225	MC13783_GPO_DEFINE(REG, GPO2, POWERMISC, mc13783_gpo_val),
	226	MC13783_GPO_DEFINE(REG, GPO3, POWERMISC, mc13783_gpo_val),
	227	MC13783_GPO_DEFINE(REG, GPO4, POWERMISC, mc13783_gpo_val),
	228	MC13783_GPO_DEFINE(REG, PWGT1SPI, POWERMISC, mc13783_pwgtdrv_val),
	229	MC13783_GPO_DEFINE(REG, PWGT2SPI, POWERMISC, mc13783_pwgtdrv_val),
295c08bc SH	230	};
295c08bc SH	231
167e3d8a YS	232	static int mc13783_powermisc_rmw(struct mc13xxx_regulator_priv *priv, u32 mask,
167e3d8a YS	233	u32 val)
f4b97b36	234	{
167e3d8a	235	struct mc13xxx *mc13783 = priv->mc13xxx;
f4b97b36 AP	236	int ret;
	237	u32 valread;
	238
	239	BUG_ON(val & ~mask);
	240
167e3d8a	241	ret = mc13xxx_reg_read(mc13783, MC13783_REG_POWERMISC, &valread);
f4b97b36 AP	242	if (ret)
	243	return ret;
	244
	245	/* Update the stored state for Power Gates. */
	246	priv->powermisc_pwgt_state =
	247	(priv->powermisc_pwgt_state & ~mask) \| val;
	248	priv->powermisc_pwgt_state &= MC13783_REG_POWERMISC_PWGTSPI_M;
	249
	250	/* Construct the new register value */
	251	valread = (valread & ~mask) \| val;
	252	/* Overwrite the PWGTxEN with the stored version */
	253	valread = (valread & ~MC13783_REG_POWERMISC_PWGTSPI_M) \|
	254	priv->powermisc_pwgt_state;
	255
167e3d8a	256	return mc13xxx_reg_write(mc13783, MC13783_REG_POWERMISC, valread);
f4b97b36 AP	257	}
	258
	259	static int mc13783_gpo_regulator_enable(struct regulator_dev *rdev)
	260	{
167e3d8a YS	261	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
167e3d8a YS	262	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
f4b97b36 AP	263	int id = rdev_get_id(rdev);
f4b97b36 AP	264	int ret;
167e3d8a	265	u32 en_val = mc13xxx_regulators[id].enable_bit;
f4b97b36 AP	266
	267	dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
	268
	269	/* Power Gate enable value is 0 */
57c78e35 YS	270	if (id == MC13783_REG_PWGT1SPI \|\|
57c78e35 YS	271	id == MC13783_REG_PWGT2SPI)
f4b97b36 AP	272	en_val = 0;
f4b97b36 AP	273
167e3d8a YS	274	mc13xxx_lock(priv->mc13xxx);
167e3d8a YS	275	ret = mc13783_powermisc_rmw(priv, mc13xxx_regulators[id].enable_bit,
f4b97b36	276	en_val);
167e3d8a	277	mc13xxx_unlock(priv->mc13xxx);
f4b97b36 AP	278
	279	return ret;
	280	}
	281
	282	static int mc13783_gpo_regulator_disable(struct regulator_dev *rdev)
	283	{
167e3d8a YS	284	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
167e3d8a YS	285	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
f4b97b36 AP	286	int id = rdev_get_id(rdev);
	287	int ret;
	288	u32 dis_val = 0;
	289
	290	dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
	291
	292	/* Power Gate disable value is 1 */
57c78e35 YS	293	if (id == MC13783_REG_PWGT1SPI \|\|
57c78e35 YS	294	id == MC13783_REG_PWGT2SPI)
167e3d8a	295	dis_val = mc13xxx_regulators[id].enable_bit;
f4b97b36	296
167e3d8a YS	297	mc13xxx_lock(priv->mc13xxx);
167e3d8a YS	298	ret = mc13783_powermisc_rmw(priv, mc13xxx_regulators[id].enable_bit,
f4b97b36	299	dis_val);
167e3d8a	300	mc13xxx_unlock(priv->mc13xxx);
f4b97b36 AP	301
	302	return ret;
	303	}
	304
	305	static int mc13783_gpo_regulator_is_enabled(struct regulator_dev *rdev)
	306	{
167e3d8a YS	307	struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
167e3d8a YS	308	struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
f4b97b36 AP	309	int ret, id = rdev_get_id(rdev);
	310	unsigned int val;
	311
167e3d8a YS	312	mc13xxx_lock(priv->mc13xxx);
	313	ret = mc13xxx_reg_read(priv->mc13xxx, mc13xxx_regulators[id].reg, &val);
	314	mc13xxx_unlock(priv->mc13xxx);
f4b97b36 AP	315
	316	if (ret)
	317	return ret;
	318
	319	/* Power Gates state is stored in powermisc_pwgt_state
	320	* where the meaning of bits is negated */
	321	val = (val & ~MC13783_REG_POWERMISC_PWGTSPI_M) \|
	322	(priv->powermisc_pwgt_state ^ MC13783_REG_POWERMISC_PWGTSPI_M);
	323
167e3d8a	324	return (val & mc13xxx_regulators[id].enable_bit) != 0;
f4b97b36 AP	325	}
	326
	327	static struct regulator_ops mc13783_gpo_regulator_ops = {
	328	.enable = mc13783_gpo_regulator_enable,
	329	.disable = mc13783_gpo_regulator_disable,
	330	.is_enabled = mc13783_gpo_regulator_is_enabled,
34e74f39	331	.list_voltage = regulator_list_voltage_table,
167e3d8a YS	332	.set_voltage = mc13xxx_fixed_regulator_set_voltage,
167e3d8a YS	333	.get_voltage = mc13xxx_fixed_regulator_get_voltage,
f4b97b36 AP	334	};
f4b97b36 AP	335
295c08bc SH	336	static int __devinit mc13783_regulator_probe(struct platform_device *pdev)
295c08bc SH	337	{
167e3d8a YS	338	struct mc13xxx_regulator_priv *priv;
167e3d8a YS	339	struct mc13xxx *mc13783 = dev_get_drvdata(pdev->dev.parent);
8f1585aa	340	struct mc13xxx_regulator_platform_data *pdata =
c8a03c96	341	dev_get_platdata(&pdev->dev);
8f1585aa	342	struct mc13xxx_regulator_init_data *init_data;
a9d58010	343	struct regulator_config config = { };
295c08bc SH	344	int i, ret;
295c08bc SH	345
c719864f	346	dev_dbg(&pdev->dev, "%s id %d\n", __func__, pdev->id);
295c08bc	347
0757b602 SH	348	if (!pdata)
	349	return -EINVAL;
	350
cbe10a36	351	priv = devm_kzalloc(&pdev->dev, sizeof(*priv) +
a10099bc	352	pdata->num_regulators * sizeof(priv->regulators[0]),
295c08bc SH	353	GFP_KERNEL);
	354	if (!priv)
	355	return -ENOMEM;
	356
167e3d8a YS	357	priv->mc13xxx_regulators = mc13783_regulators;
167e3d8a YS	358	priv->mc13xxx = mc13783;
295c08bc	359
a10099bc	360	for (i = 0; i < pdata->num_regulators; i++) {
a9d58010 AL	361	struct regulator_desc *desc;
a9d58010 AL	362
a10099bc	363	init_data = &pdata->regulators[i];
a9d58010 AL	364	desc = &mc13783_regulators[init_data->id].desc;
	365
	366	config.dev = &pdev->dev;
	367	config.init_data = init_data->init_data;
	368	config.driver_data = priv;
295c08bc	369
a9d58010	370	priv->regulators[i] = regulator_register(desc, &config);
295c08bc SH	371	if (IS_ERR(priv->regulators[i])) {
	372	dev_err(&pdev->dev, "failed to register regulator %s\n",
	373	mc13783_regulators[i].desc.name);
	374	ret = PTR_ERR(priv->regulators[i]);
	375	goto err;
	376	}
	377	}
	378
	379	platform_set_drvdata(pdev, priv);
	380
	381	return 0;
	382	err:
	383	while (--i >= 0)
	384	regulator_unregister(priv->regulators[i]);
	385
295c08bc SH	386	return ret;
	387	}
	388
	389	static int __devexit mc13783_regulator_remove(struct platform_device *pdev)
	390	{
167e3d8a	391	struct mc13xxx_regulator_priv *priv = platform_get_drvdata(pdev);
8f1585aa	392	struct mc13xxx_regulator_platform_data *pdata =
c8a03c96	393	dev_get_platdata(&pdev->dev);
295c08bc SH	394	int i;
295c08bc SH	395
58d57658 AL	396	platform_set_drvdata(pdev, NULL);
58d57658 AL	397
a10099bc	398	for (i = 0; i < pdata->num_regulators; i++)
295c08bc SH	399	regulator_unregister(priv->regulators[i]);
	400
	401	return 0;
	402	}
	403
	404	static struct platform_driver mc13783_regulator_driver = {
	405	.driver = {
	406	.name = "mc13783-regulator",
	407	.owner = THIS_MODULE,
	408	},
	409	.remove = __devexit_p(mc13783_regulator_remove),
735eb93a	410	.probe = mc13783_regulator_probe,
295c08bc SH	411	};
	412
	413	static int __init mc13783_regulator_init(void)
	414	{
735eb93a	415	return platform_driver_register(&mc13783_regulator_driver);
295c08bc SH	416	}
	417	subsys_initcall(mc13783_regulator_init);
	418
	419	static void __exit mc13783_regulator_exit(void)
	420	{
	421	platform_driver_unregister(&mc13783_regulator_driver);
	422	}
	423	module_exit(mc13783_regulator_exit);
	424
a10099bc	425	MODULE_LICENSE("GPL v2");
1dcc434b	426	MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
295c08bc SH	427	MODULE_DESCRIPTION("Regulator Driver for Freescale MC13783 PMIC");
295c08bc SH	428	MODULE_ALIAS("platform:mc13783-regulator");