src/drivers/ti/tps65090/tps65090.h

   1 /* SPDX-License-Identifier: BSD-3-Clause or GPL-2.0-only */
   2
   3 #ifndef __TPS65090_H_
   4 #define __TPS65090_H_
   5
   6 /* I2C device address for TPS65090 PMU */
   7 #define TPS65090_I2C_ADDR       0x48
   8
   9 /* TPS65090 FET control registers */
  10 enum fet_id {
  11         FET1_CTRL = 0x0f,
  12         FET2_CTRL,
  13         FET3_CTRL,
  14         FET4_CTRL,
  15         FET5_CTRL,
  16         FET6_CTRL,
  17         FET7_CTRL,
  18 };
  19
  20 enum {
  21         /* Status register fields */
  22         TPS65090_ST1_OTC        = 1 << 0,
  23         TPS65090_ST1_OCC        = 1 << 1,
  24         TPS65090_ST1_STATE_SHIFT = 4,
  25         TPS65090_ST1_STATE_MASK = 0xf << TPS65090_ST1_STATE_SHIFT,
  26 };
  27
  28 /* FET errors */
  29 enum {
  30         FET_ERR_COMMS           = -1,   /* FET comms error */
  31         FET_ERR_NOT_READY       = -2,   /* FET is not yet ready - retry */
  32 };
  33
  34 /**
  35  * Enable FET
  36  *
  37  * @param bus           I2C bus number the TPS65090 is on
  38  * @param fet_id        FET ID, value between 1 and 7
  39  * return       0 on success, non-0 on failure
  40  */
  41 int tps65090_fet_enable(unsigned int bus, enum fet_id fet_id);
  42
  43 /**
  44  * Disable FET
  45  *
  46  * @param bus           I2C bus number the TPS65090 is on
  47  * @param fet_id        FET ID, value between 1 and 7
  48  * @return      0 on success, non-0 on failure
  49  */
  50 int tps65090_fet_disable(unsigned int bus, enum fet_id fet_id);
  51
  52 /**
  53  * Is FET enabled?
  54  *
  55  * @param bus           I2C bus number the TPS65090 is on
  56  * @param fet_id        FET ID, value between 1 and 7
  57  * @return      1 enabled, 0 disabled, negative value on failure
  58  */
  59 int tps65090_fet_is_enabled(unsigned int bus, enum fet_id fet_id);
  60
  61 /**
  62  * Enable / disable the battery charger
  63  *
  64  * @param bus           I2C bus number the TPS65090 is on
  65  * @param enable        0 to disable charging, non-zero to enable
  66  */
  67 int tps65090_set_charge_enable(unsigned int bus, int enable);
  68
  69 /**
  70  * Check whether we have enabled battery charging
  71  *
  72  * @param bus           I2C bus number the TPS65090 is on
  73  * @return 1 if enabled, 0 if disabled
  74  */
  75 int tps65090_is_charging(unsigned int bus);
  76
  77 /**
  78  * Return the value of the status register
  79  *
  80  * @param bus           I2C bus number the TPS65090 is on
  81  * @return status register value, or -1 on error
  82  */
  83 int tps65090_get_status(unsigned int bus);
  84
  85 #endif /* __TPS65090_H_ */