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/*
* Copyright (C) ST-Ericsson SA 2010
*
* Author: Bengt Jonsson <bengt.jonsson@stericsson.com> for ST-Ericsson,
* Jonas Aaberg <jonas.aberg@stericsson.com> for ST-Ericsson
*
* License Terms: GNU General Public License v2
*
*/
#ifndef MACH_UX500_REGULATOR_H
#define MACH_UX500_REGULATOR_H
#include <linux/device.h>
struct ux500_regulator;
#ifdef CONFIG_REGULATOR
/*
* NOTE! The device will be connected to the correct regulator by this
* new framework. A list with connections will match up dev_name(dev)
* to the specific regulator. This follows the same principle as the
* normal regulator framework.
*
* This framework shall only be used in special cases when a regulator
* has to be enabled/disabled in atomic context.
*/
/**
* ux500_regulator_get()
*
* @dev: Drivers device struct
*
* Returns a ux500_regulator struct. Shall be used as argument for
* ux500_regulator_atomic_enable/disable calls.
* Return ERR_PTR(-EINVAL) upon no matching regulator found.
*/
struct ux500_regulator *__must_check ux500_regulator_get(struct device *dev);
/**
* ux500_regulator_atomic_enable()
*
* @regulator: Regulator handle, provided from ux500_regulator_get.
*
* The enable/disable functions keep an internal counter, so every
* enable must be paired with an disable in order to turn off regulator.
*/
int ux500_regulator_atomic_enable(struct ux500_regulator *regulator);
/**
* ux500_regulator_atomic_disable()
*
* @regulator: Regulator handle, provided from ux500_regulator_get.
*
*/
int ux500_regulator_atomic_disable(struct ux500_regulator *regulator);
/**
* ux500_regulator_put()
*
* @regulator: Regulator handle, provided from ux500_regulator_get.
*/
void ux500_regulator_put(struct ux500_regulator *regulator);
#else
static inline struct ux500_regulator *__must_check
ux500_regulator_get(struct device *dev)
{
return ERR_PTR(-EINVAL);
}
static inline int
ux500_regulator_atomic_enable(struct ux500_regulator *regulator)
{
return -EINVAL;
}
static inline int
ux500_regulator_atomic_disable(struct ux500_regulator *regulator)
{
return -EINVAL;
}
static inline void ux500_regulator_put(struct ux500_regulator *regulator)
{
}
#endif
#endif
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