include/linux/mfd/wm8350/supply.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * supply.h  --  Power Supply Driver for Wolfson WM8350 PMIC
   4  *
   5  * Copyright 2007 Wolfson Microelectronics PLC
   6  */
   7
   8 #ifndef __LINUX_MFD_WM8350_SUPPLY_H_
   9 #define __LINUX_MFD_WM8350_SUPPLY_H_
  10
  11 #include <linux/mutex.h>
  12 #include <linux/power_supply.h>
  13
  14 /*
  15  * Charger registers
  16  */
  17 #define WM8350_BATTERY_CHARGER_CONTROL_1        0xA8
  18 #define WM8350_BATTERY_CHARGER_CONTROL_2        0xA9
  19 #define WM8350_BATTERY_CHARGER_CONTROL_3        0xAA
  20
  21 /*
  22  * R168 (0xA8) - Battery Charger Control 1
  23  */
  24 #define WM8350_CHG_ENA_R168                     0x8000
  25 #define WM8350_CHG_THR                          0x2000
  26 #define WM8350_CHG_EOC_SEL_MASK                 0x1C00
  27 #define WM8350_CHG_TRICKLE_TEMP_CHOKE           0x0200
  28 #define WM8350_CHG_TRICKLE_USB_CHOKE            0x0100
  29 #define WM8350_CHG_RECOVER_T                    0x0080
  30 #define WM8350_CHG_END_ACT                      0x0040
  31 #define WM8350_CHG_FAST                         0x0020
  32 #define WM8350_CHG_FAST_USB_THROTTLE            0x0010
  33 #define WM8350_CHG_NTC_MON                      0x0008
  34 #define WM8350_CHG_BATT_HOT_MON                 0x0004
  35 #define WM8350_CHG_BATT_COLD_MON                0x0002
  36 #define WM8350_CHG_CHIP_TEMP_MON                0x0001
  37
  38 /*
  39  * R169 (0xA9) - Battery Charger Control 2
  40  */
  41 #define WM8350_CHG_ACTIVE                       0x8000
  42 #define WM8350_CHG_PAUSE                        0x4000
  43 #define WM8350_CHG_STS_MASK                     0x3000
  44 #define WM8350_CHG_TIME_MASK                    0x0F00
  45 #define WM8350_CHG_MASK_WALL_FB                 0x0080
  46 #define WM8350_CHG_TRICKLE_SEL                  0x0040
  47 #define WM8350_CHG_VSEL_MASK                    0x0030
  48 #define WM8350_CHG_ISEL_MASK                    0x000F
  49 #define WM8350_CHG_STS_OFF                      0x0000
  50 #define WM8350_CHG_STS_TRICKLE                  0x1000
  51 #define WM8350_CHG_STS_FAST                     0x2000
  52
  53 /*
  54  * R170 (0xAA) - Battery Charger Control 3
  55  */
  56 #define WM8350_CHG_THROTTLE_T_MASK              0x0060
  57 #define WM8350_CHG_SMART                        0x0010
  58 #define WM8350_CHG_TIMER_ADJT_MASK              0x000F
  59
  60 /*
  61  * Charger Interrupts
  62  */
  63 #define WM8350_IRQ_CHG_BAT_HOT                  0
  64 #define WM8350_IRQ_CHG_BAT_COLD                 1
  65 #define WM8350_IRQ_CHG_BAT_FAIL                 2
  66 #define WM8350_IRQ_CHG_TO                       3
  67 #define WM8350_IRQ_CHG_END                      4
  68 #define WM8350_IRQ_CHG_START                    5
  69 #define WM8350_IRQ_CHG_FAST_RDY                 6
  70 #define WM8350_IRQ_CHG_VBATT_LT_3P9             10
  71 #define WM8350_IRQ_CHG_VBATT_LT_3P1             11
  72 #define WM8350_IRQ_CHG_VBATT_LT_2P85            12
  73
  74 /*
  75  * Charger Policy
  76  */
  77 #define WM8350_CHG_TRICKLE_50mA                 (0 << 6)
  78 #define WM8350_CHG_TRICKLE_100mA                (1 << 6)
  79 #define WM8350_CHG_4_05V                        (0 << 4)
  80 #define WM8350_CHG_4_10V                        (1 << 4)
  81 #define WM8350_CHG_4_15V                        (2 << 4)
  82 #define WM8350_CHG_4_20V                        (3 << 4)
  83 #define WM8350_CHG_FAST_LIMIT_mA(x)             ((x / 50) & 0xf)
  84 #define WM8350_CHG_EOC_mA(x)                    (((x - 10) & 0x7) << 10)
  85 #define WM8350_CHG_TRICKLE_3_1V                 (0 << 13)
  86 #define WM8350_CHG_TRICKLE_3_9V                 (1 << 13)
  87
  88 /*
  89  * Supply Registers.
  90  */
  91 #define WM8350_USB_VOLTAGE_READBACK             0x9C
  92 #define WM8350_LINE_VOLTAGE_READBACK            0x9D
  93 #define WM8350_BATT_VOLTAGE_READBACK            0x9E
  94
  95 /*
  96  * Supply Interrupts.
  97  */
  98 #define WM8350_IRQ_USB_LIMIT                    15
  99 #define WM8350_IRQ_EXT_USB_FB                   36
 100 #define WM8350_IRQ_EXT_WALL_FB                  37
 101 #define WM8350_IRQ_EXT_BAT_FB                   38
 102
 103 /*
 104  * Policy to control charger state machine.
 105  */
 106 struct wm8350_charger_policy {
 107
 108         /* charger state machine policy  - set in machine driver */
 109         int eoc_mA;             /* end of charge current (mA)  */
 110         int charge_mV;          /* charge voltage */
 111         int fast_limit_mA;      /* fast charge current limit */
 112         int fast_limit_USB_mA;  /* USB fast charge current limit */
 113         int charge_timeout;     /* charge timeout (mins) */
 114         int trickle_start_mV;   /* trickle charge starts at mV */
 115         int trickle_charge_mA;  /* trickle charge current */
 116         int trickle_charge_USB_mA;      /* USB trickle charge current */
 117 };
 118
 119 struct wm8350_power {
 120         struct platform_device *pdev;
 121         struct power_supply *battery;
 122         struct power_supply *usb;
 123         struct power_supply *ac;
 124         struct wm8350_charger_policy *policy;
 125
 126         int rev_g_coeff;
 127 };
 128
 129 #endif