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 */ 106struct 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 119struct 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