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 130