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/* Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _LINUX_REGULATOR_RPM_SMD_H
#define _LINUX_REGULATOR_RPM_SMD_H
#include <linux/device.h>
struct rpm_regulator;
/**
* enum rpm_regulator_voltage_corner - possible voltage corner values
*
* These should be used in regulator_set_voltage() and
* rpm_regulator_set_voltage() calls for corner type regulators as if they had
* units of uV.
*
* Note, the meaning of corner values is set by the RPM. It is possible that
* future platforms will utilize different corner values. The values specified
* in this enum correspond to MSM8974 for PMIC PM8841 SMPS 2 (VDD_Dig).
*/
enum rpm_regulator_voltage_corner {
RPM_REGULATOR_CORNER_NONE = 1,
RPM_REGULATOR_CORNER_RETENTION,
RPM_REGULATOR_CORNER_SVS_KRAIT,
RPM_REGULATOR_CORNER_SVS_SOC,
RPM_REGULATOR_CORNER_NORMAL,
RPM_REGULATOR_CORNER_TURBO,
RPM_REGULATOR_CORNER_SUPER_TURBO,
};
/**
* enum rpm_regulator_mode - control mode for LDO or SMPS type regulators
* %RPM_REGULATOR_MODE_AUTO: For SMPS type regulators, use SMPS auto mode so
* that the hardware can automatically switch
* between PFM and PWM modes based on realtime
* load.
* LDO type regulators do not support this mode.
* %RPM_REGULATOR_MODE_IPEAK: For SMPS type regulators, use aggregated
* software current requests to determine
* usage of PFM or PWM mode.
* For LDO type regulators, use aggregated
* software current requests to determine
* usage of LPM or HPM mode.
* %RPM_REGULATOR_MODE_HPM: For SMPS type regulators, force the
* usage of PWM mode.
* For LDO type regulators, force the
* usage of HPM mode.
*
* These values should be used in calls to rpm_regulator_set_mode().
*/
enum rpm_regulator_mode {
RPM_REGULATOR_MODE_AUTO,
RPM_REGULATOR_MODE_IPEAK,
RPM_REGULATOR_MODE_HPM,
};
#ifdef CONFIG_REGULATOR_RPM_SMD
struct rpm_regulator *rpm_regulator_get(struct device *dev, const char *supply);
void rpm_regulator_put(struct rpm_regulator *regulator);
int rpm_regulator_enable(struct rpm_regulator *regulator);
int rpm_regulator_disable(struct rpm_regulator *regulator);
int rpm_regulator_set_voltage(struct rpm_regulator *regulator, int min_uV,
int max_uV);
int rpm_regulator_set_mode(struct rpm_regulator *regulator,
enum rpm_regulator_mode mode);
int __init rpm_smd_regulator_driver_init(void);
#else
static inline struct rpm_regulator *rpm_regulator_get(struct device *dev,
const char *supply) { return NULL; }
static inline void rpm_regulator_put(struct rpm_regulator *regulator) { }
static inline int rpm_regulator_enable(struct rpm_regulator *regulator)
{ return 0; }
static inline int rpm_regulator_disable(struct rpm_regulator *regulator)
{ return 0; }
static inline int rpm_regulator_set_voltage(struct rpm_regulator *regulator,
int min_uV, int max_uV) { return 0; }
static inline int rpm_regulator_set_mode(struct rpm_regulator *regulator,
enum rpm_regulator_mode mode) { return 0; }
static inline int __init rpm_smd_regulator_driver_init(void) { return 0; }
#endif /* CONFIG_REGULATOR_RPM_SMD */
#endif
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