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