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b4b90c659d
linux_dsm_epyc7002/drivers/regulator/mc13783-regulator.c
Uwe Kleine-König b4b90c659d regulator/mc13783: rename source file to match other drivers 
One annoying thing about the old name was that the module was just
called mc13783 which caused wrong expectations (at least for me).

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Liam Girdwood <lrg@slimlogic.co.uk>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Acked-by: Mark Brown <broonie@opensoruce.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17 10:27:26 +00:00

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/*
* Regulator Driver for Freescale MC13783 PMIC
*
* Copyright (C) 2008 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
*
* 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-private.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/driver.h>
#include <linux/platform_device.h>
#include <linux/mfd/mc13783.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/err.h>
struct mc13783_regulator {
struct regulator_desc desc;
int reg;
int enable_bit;
};
static struct regulator_ops mc13783_regulator_ops;
static struct mc13783_regulator mc13783_regulators[] = {
[MC13783_SW_SW3] = {
.desc = {
.name = "SW_SW3",
.ops = &mc13783_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = MC13783_SW_SW3,
.owner = THIS_MODULE,
},
.reg = MC13783_REG_SWITCHERS_5,
.enable_bit = MC13783_SWCTRL_SW3_EN,
},
[MC13783_SW_PLL] = {
.desc = {
.name = "SW_PLL",
.ops = &mc13783_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = MC13783_SW_PLL,
.owner = THIS_MODULE,
},
.reg = MC13783_REG_SWITCHERS_4,
.enable_bit = MC13783_SWCTRL_PLL_EN,
},
[MC13783_REGU_VAUDIO] = {
.desc = {
.name = "REGU_VAUDIO",
.ops = &mc13783_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = MC13783_REGU_VAUDIO,
.owner = THIS_MODULE,
},
.reg = MC13783_REG_REGULATOR_MODE_0,
.enable_bit = MC13783_REGCTRL_VAUDIO_EN,
},
[MC13783_REGU_VIOHI] = {
.desc = {
.name = "REGU_VIOHI",
.ops = &mc13783_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = MC13783_REGU_VIOHI,
.owner = THIS_MODULE,
},
.reg = MC13783_REG_REGULATOR_MODE_0,
.enable_bit = MC13783_REGCTRL_VIOHI_EN,
},
[MC13783_REGU_VIOLO] = {
.desc = {
.name = "REGU_VIOLO",
.ops = &mc13783_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = MC13783_REGU_VIOLO,
.owner = THIS_MODULE,
},
.reg = MC13783_REG_REGULATOR_MODE_0,
.enable_bit = MC13783_REGCTRL_VIOLO_EN,
},
[MC13783_REGU_VDIG] = {
.desc = {
.name = "REGU_VDIG",
.ops = &mc13783_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = MC13783_REGU_VDIG,
.owner = THIS_MODULE,
},
.reg = MC13783_REG_REGULATOR_MODE_0,
.enable_bit = MC13783_REGCTRL_VDIG_EN,
},
[MC13783_REGU_VGEN] = {
.desc = {
.name = "REGU_VGEN",
.ops = &mc13783_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = MC13783_REGU_VGEN,
.owner = THIS_MODULE,
},
.reg = MC13783_REG_REGULATOR_MODE_0,
.enable_bit = MC13783_REGCTRL_VGEN_EN,
},
[MC13783_REGU_VRFDIG] = {
.desc = {
.name = "REGU_VRFDIG",
.ops = &mc13783_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = MC13783_REGU_VRFDIG,
.owner = THIS_MODULE,
},
.reg = MC13783_REG_REGULATOR_MODE_0,
.enable_bit = MC13783_REGCTRL_VRFDIG_EN,
},
[MC13783_REGU_VRFREF] = {
.desc = {
.name = "REGU_VRFREF",
.ops = &mc13783_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = MC13783_REGU_VRFREF,
.owner = THIS_MODULE,
},
.reg = MC13783_REG_REGULATOR_MODE_0,
.enable_bit = MC13783_REGCTRL_VRFREF_EN,
},
[MC13783_REGU_VRFCP] = {
.desc = {
.name = "REGU_VRFCP",
.ops = &mc13783_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = MC13783_REGU_VRFCP,
.owner = THIS_MODULE,
},
.reg = MC13783_REG_REGULATOR_MODE_0,
.enable_bit = MC13783_REGCTRL_VRFCP_EN,
},
[MC13783_REGU_VSIM] = {
.desc = {
.name = "REGU_VSIM",
.ops = &mc13783_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = MC13783_REGU_VSIM,
.owner = THIS_MODULE,
},
.reg = MC13783_REG_REGULATOR_MODE_1,
.enable_bit = MC13783_REGCTRL_VSIM_EN,
},
[MC13783_REGU_VESIM] = {
.desc = {
.name = "REGU_VESIM",
.ops = &mc13783_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = MC13783_REGU_VESIM,
.owner = THIS_MODULE,
},
.reg = MC13783_REG_REGULATOR_MODE_1,
.enable_bit = MC13783_REGCTRL_VESIM_EN,
},
[MC13783_REGU_VCAM] = {
.desc = {
.name = "REGU_VCAM",
.ops = &mc13783_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = MC13783_REGU_VCAM,
.owner = THIS_MODULE,
},
.reg = MC13783_REG_REGULATOR_MODE_1,
.enable_bit = MC13783_REGCTRL_VCAM_EN,
},
[MC13783_REGU_VRFBG] = {
.desc = {
.name = "REGU_VRFBG",
.ops = &mc13783_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = MC13783_REGU_VRFBG,
.owner = THIS_MODULE,
},
.reg = MC13783_REG_REGULATOR_MODE_1,
.enable_bit = MC13783_REGCTRL_VRFBG_EN,
},
[MC13783_REGU_VVIB] = {
.desc = {
.name = "REGU_VVIB",
.ops = &mc13783_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = MC13783_REGU_VVIB,
.owner = THIS_MODULE,
},
.reg = MC13783_REG_REGULATOR_MODE_1,
.enable_bit = MC13783_REGCTRL_VVIB_EN,
},
[MC13783_REGU_VRF1] = {
.desc = {
.name = "REGU_VRF1",
.ops = &mc13783_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = MC13783_REGU_VRF1,
.owner = THIS_MODULE,
},
.reg = MC13783_REG_REGULATOR_MODE_1,
.enable_bit = MC13783_REGCTRL_VRF1_EN,
},
[MC13783_REGU_VRF2] = {
.desc = {
.name = "REGU_VRF2",
.ops = &mc13783_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = MC13783_REGU_VRF2,
.owner = THIS_MODULE,
},
.reg = MC13783_REG_REGULATOR_MODE_1,
.enable_bit = MC13783_REGCTRL_VRF2_EN,
},
[MC13783_REGU_VMMC1] = {
.desc = {
.name = "REGU_VMMC1",
.ops = &mc13783_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = MC13783_REGU_VMMC1,
.owner = THIS_MODULE,
},
.reg = MC13783_REG_REGULATOR_MODE_1,
.enable_bit = MC13783_REGCTRL_VMMC1_EN,
},
[MC13783_REGU_VMMC2] = {
.desc = {
.name = "REGU_VMMC2",
.ops = &mc13783_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = MC13783_REGU_VMMC2,
.owner = THIS_MODULE,
},
.reg = MC13783_REG_REGULATOR_MODE_1,
.enable_bit = MC13783_REGCTRL_VMMC2_EN,
},
[MC13783_REGU_GPO1] = {
.desc = {
.name = "REGU_GPO1",
.ops = &mc13783_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = MC13783_REGU_GPO1,
.owner = THIS_MODULE,
},
.reg = MC13783_REG_POWER_MISCELLANEOUS,
.enable_bit = MC13783_REGCTRL_GPO1_EN,
},
[MC13783_REGU_GPO2] = {
.desc = {
.name = "REGU_GPO2",
.ops = &mc13783_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = MC13783_REGU_GPO2,
.owner = THIS_MODULE,
},
.reg = MC13783_REG_POWER_MISCELLANEOUS,
.enable_bit = MC13783_REGCTRL_GPO2_EN,
},
[MC13783_REGU_GPO3] = {
.desc = {
.name = "REGU_GPO3",
.ops = &mc13783_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = MC13783_REGU_GPO3,
.owner = THIS_MODULE,
},
.reg = MC13783_REG_POWER_MISCELLANEOUS,
.enable_bit = MC13783_REGCTRL_GPO3_EN,
},
[MC13783_REGU_GPO4] = {
.desc = {
.name = "REGU_GPO4",
.ops = &mc13783_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = MC13783_REGU_GPO4,
.owner = THIS_MODULE,
},
.reg = MC13783_REG_POWER_MISCELLANEOUS,
.enable_bit = MC13783_REGCTRL_GPO4_EN,
},
};
struct mc13783_priv {
struct regulator_desc desc[ARRAY_SIZE(mc13783_regulators)];
struct mc13783 *mc13783;
struct regulator_dev *regulators[0];
};
static int mc13783_enable(struct regulator_dev *rdev)
{
struct mc13783_priv *priv = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev);
dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
return mc13783_set_bits(priv->mc13783, mc13783_regulators[id].reg,
mc13783_regulators[id].enable_bit,
mc13783_regulators[id].enable_bit);
}
static int mc13783_disable(struct regulator_dev *rdev)
{
struct mc13783_priv *priv = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev);
dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
return mc13783_set_bits(priv->mc13783, mc13783_regulators[id].reg,
mc13783_regulators[id].enable_bit, 0);
}
static int mc13783_is_enabled(struct regulator_dev *rdev)
{
struct mc13783_priv *priv = rdev_get_drvdata(rdev);
int ret, id = rdev_get_id(rdev);
unsigned int val;
ret = mc13783_reg_read(priv->mc13783, mc13783_regulators[id].reg, &val);
if (ret)
return ret;
return (val & mc13783_regulators[id].enable_bit) != 0;
}
static struct regulator_ops mc13783_regulator_ops = {
.enable = mc13783_enable,
.disable = mc13783_disable,
.is_enabled = mc13783_is_enabled,
};
static int __devinit mc13783_regulator_probe(struct platform_device *pdev)
{
struct mc13783_priv *priv;
struct mc13783 *mc13783 = dev_get_drvdata(pdev->dev.parent);
struct mc13783_regulator_init_data *init_data;
int i, ret;
dev_dbg(&pdev->dev, "mc13783_regulator_probe id %d\n", pdev->id);
priv = kzalloc(sizeof(*priv) + mc13783->num_regulators * sizeof(void *),
GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->mc13783 = mc13783;
for (i = 0; i < mc13783->num_regulators; i++) {
init_data = &mc13783->regulators[i];
priv->regulators[i] = regulator_register(
&mc13783_regulators[init_data->id].desc,
&pdev->dev, init_data->init_data, priv);
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]);
kfree(priv);
return ret;
}
static int __devexit mc13783_regulator_remove(struct platform_device *pdev)
{
struct mc13783_priv *priv = platform_get_drvdata(pdev);
struct mc13783 *mc13783 = priv->mc13783;
int i;
for (i = 0; i < mc13783->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),
};
static int __init mc13783_regulator_init(void)
{
return platform_driver_probe(&mc13783_regulator_driver,
mc13783_regulator_probe);
}
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");
MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de");
MODULE_DESCRIPTION("Regulator Driver for Freescale MC13783 PMIC");
MODULE_ALIAS("platform:mc13783-regulator");
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