tps65090.h

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/* SPDX-License-Identifier: BSD-3-Clause or GPL-2.0-only */
 
#ifndef __TPS65090_H_
#define __TPS65090_H_
 
/* I2C device address for TPS65090 PMU */
#define TPS65090_I2C_ADDR       0x48
 
/* TPS65090 FET control registers */
enum fet_id {
        FET1_CTRL = 0x0f,
        FET2_CTRL,
        FET3_CTRL,
        FET4_CTRL,
        FET5_CTRL,
        FET6_CTRL,
        FET7_CTRL,
};
 
enum {
        /* Status register fields */
        TPS65090_ST1_OTC        = 1 << 0,
        TPS65090_ST1_OCC        = 1 << 1,
        TPS65090_ST1_STATE_SHIFT = 4,
        TPS65090_ST1_STATE_MASK = 0xf << TPS65090_ST1_STATE_SHIFT,
};
 
/* FET errors */
enum {
        FET_ERR_COMMS           = -1,   /* FET comms error */
        FET_ERR_NOT_READY       = -2,   /* FET is not yet ready - retry */
};
 
/**
 * Enable FET
 *
 * @param bus           I2C bus number the TPS65090 is on
 * @param fet_id        FET ID, value between 1 and 7
 * return       0 on success, non-0 on failure
 */
int tps65090_fet_enable(unsigned int bus, enum fet_id fet_id);
 
/**
 * Disable FET
 *
 * @param bus           I2C bus number the TPS65090 is on
 * @param fet_id        FET ID, value between 1 and 7
 * @return      0 on success, non-0 on failure
 */
int tps65090_fet_disable(unsigned int bus, enum fet_id fet_id);
 
/**
 * Is FET enabled?
 *
 * @param bus           I2C bus number the TPS65090 is on
 * @param fet_id        FET ID, value between 1 and 7
 * @return      1 enabled, 0 disabled, negative value on failure
 */
int tps65090_fet_is_enabled(unsigned int bus, enum fet_id fet_id);
 
/**
 * Enable / disable the battery charger
 *
 * @param bus           I2C bus number the TPS65090 is on
 * @param enable        0 to disable charging, non-zero to enable
 */
int tps65090_set_charge_enable(unsigned int bus, int enable);
 
/**
 * Check whether we have enabled battery charging
 *
 * @param bus           I2C bus number the TPS65090 is on
 * @return 1 if enabled, 0 if disabled
 */
int tps65090_is_charging(unsigned int bus);
 
/**
 * Return the value of the status register
 *
 * @param bus           I2C bus number the TPS65090 is on
 * @return status register value, or -1 on error
 */
int tps65090_get_status(unsigned int bus);
 
#endif /* __TPS65090_H_ */