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 | |