xref: /linux/include/linux/mfd/wm8350/supply.h (revision 75bf465f0bc33e9b776a46d6a1b9b990f5fb7c37)
1*2874c5fdSThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-or-later */
2f8ea79c2SMark Brown /*
3f8ea79c2SMark Brown  * supply.h  --  Power Supply Driver for Wolfson WM8350 PMIC
4f8ea79c2SMark Brown  *
5f8ea79c2SMark Brown  * Copyright 2007 Wolfson Microelectronics PLC
6f8ea79c2SMark Brown  */
7f8ea79c2SMark Brown 
8f8ea79c2SMark Brown #ifndef __LINUX_MFD_WM8350_SUPPLY_H_
9f8ea79c2SMark Brown #define __LINUX_MFD_WM8350_SUPPLY_H_
10f8ea79c2SMark Brown 
1114431aa0SMark Brown #include <linux/mutex.h>
1214431aa0SMark Brown #include <linux/power_supply.h>
13add41cb4SMark Brown 
14f8ea79c2SMark Brown /*
15f8ea79c2SMark Brown  * Charger registers
16f8ea79c2SMark Brown  */
17f8ea79c2SMark Brown #define WM8350_BATTERY_CHARGER_CONTROL_1        0xA8
18f8ea79c2SMark Brown #define WM8350_BATTERY_CHARGER_CONTROL_2        0xA9
19f8ea79c2SMark Brown #define WM8350_BATTERY_CHARGER_CONTROL_3        0xAA
20f8ea79c2SMark Brown 
21f8ea79c2SMark Brown /*
22f8ea79c2SMark Brown  * R168 (0xA8) - Battery Charger Control 1
23f8ea79c2SMark Brown  */
24f8ea79c2SMark Brown #define WM8350_CHG_ENA_R168                     0x8000
25f8ea79c2SMark Brown #define WM8350_CHG_THR                          0x2000
26f8ea79c2SMark Brown #define WM8350_CHG_EOC_SEL_MASK                 0x1C00
27f8ea79c2SMark Brown #define WM8350_CHG_TRICKLE_TEMP_CHOKE           0x0200
28f8ea79c2SMark Brown #define WM8350_CHG_TRICKLE_USB_CHOKE            0x0100
29f8ea79c2SMark Brown #define WM8350_CHG_RECOVER_T                    0x0080
30f8ea79c2SMark Brown #define WM8350_CHG_END_ACT                      0x0040
31f8ea79c2SMark Brown #define WM8350_CHG_FAST                         0x0020
32f8ea79c2SMark Brown #define WM8350_CHG_FAST_USB_THROTTLE            0x0010
33f8ea79c2SMark Brown #define WM8350_CHG_NTC_MON                      0x0008
34f8ea79c2SMark Brown #define WM8350_CHG_BATT_HOT_MON                 0x0004
35f8ea79c2SMark Brown #define WM8350_CHG_BATT_COLD_MON                0x0002
36f8ea79c2SMark Brown #define WM8350_CHG_CHIP_TEMP_MON                0x0001
37f8ea79c2SMark Brown 
38f8ea79c2SMark Brown /*
39f8ea79c2SMark Brown  * R169 (0xA9) - Battery Charger Control 2
40f8ea79c2SMark Brown  */
41f8ea79c2SMark Brown #define WM8350_CHG_ACTIVE                       0x8000
42f8ea79c2SMark Brown #define WM8350_CHG_PAUSE                        0x4000
43f8ea79c2SMark Brown #define WM8350_CHG_STS_MASK                     0x3000
44f8ea79c2SMark Brown #define WM8350_CHG_TIME_MASK                    0x0F00
45f8ea79c2SMark Brown #define WM8350_CHG_MASK_WALL_FB                 0x0080
46f8ea79c2SMark Brown #define WM8350_CHG_TRICKLE_SEL                  0x0040
47f8ea79c2SMark Brown #define WM8350_CHG_VSEL_MASK                    0x0030
48f8ea79c2SMark Brown #define WM8350_CHG_ISEL_MASK                    0x000F
49f8ea79c2SMark Brown #define WM8350_CHG_STS_OFF                      0x0000
50f8ea79c2SMark Brown #define WM8350_CHG_STS_TRICKLE                  0x1000
51f8ea79c2SMark Brown #define WM8350_CHG_STS_FAST                     0x2000
52f8ea79c2SMark Brown 
53f8ea79c2SMark Brown /*
54f8ea79c2SMark Brown  * R170 (0xAA) - Battery Charger Control 3
55f8ea79c2SMark Brown  */
56f8ea79c2SMark Brown #define WM8350_CHG_THROTTLE_T_MASK              0x0060
57f8ea79c2SMark Brown #define WM8350_CHG_SMART                        0x0010
58f8ea79c2SMark Brown #define WM8350_CHG_TIMER_ADJT_MASK              0x000F
59f8ea79c2SMark Brown 
60f8ea79c2SMark Brown /*
61f8ea79c2SMark Brown  * Charger Interrupts
62f8ea79c2SMark Brown  */
63f8ea79c2SMark Brown #define WM8350_IRQ_CHG_BAT_HOT			0
64f8ea79c2SMark Brown #define WM8350_IRQ_CHG_BAT_COLD			1
65f8ea79c2SMark Brown #define WM8350_IRQ_CHG_BAT_FAIL			2
66f8ea79c2SMark Brown #define WM8350_IRQ_CHG_TO			3
67f8ea79c2SMark Brown #define WM8350_IRQ_CHG_END			4
68f8ea79c2SMark Brown #define WM8350_IRQ_CHG_START			5
69f8ea79c2SMark Brown #define WM8350_IRQ_CHG_FAST_RDY			6
70f8ea79c2SMark Brown #define WM8350_IRQ_CHG_VBATT_LT_3P9		10
71f8ea79c2SMark Brown #define WM8350_IRQ_CHG_VBATT_LT_3P1		11
72f8ea79c2SMark Brown #define WM8350_IRQ_CHG_VBATT_LT_2P85		12
73f8ea79c2SMark Brown 
74f8ea79c2SMark Brown /*
75f8ea79c2SMark Brown  * Charger Policy
76f8ea79c2SMark Brown  */
77f8ea79c2SMark Brown #define WM8350_CHG_TRICKLE_50mA			(0 << 6)
78f8ea79c2SMark Brown #define WM8350_CHG_TRICKLE_100mA		(1 << 6)
79f8ea79c2SMark Brown #define WM8350_CHG_4_05V			(0 << 4)
80f8ea79c2SMark Brown #define WM8350_CHG_4_10V			(1 << 4)
81f8ea79c2SMark Brown #define WM8350_CHG_4_15V			(2 << 4)
82f8ea79c2SMark Brown #define WM8350_CHG_4_20V			(3 << 4)
83f8ea79c2SMark Brown #define WM8350_CHG_FAST_LIMIT_mA(x)		((x / 50) & 0xf)
84f8ea79c2SMark Brown #define WM8350_CHG_EOC_mA(x)			(((x - 10) & 0x7) << 10)
85f8ea79c2SMark Brown #define WM8350_CHG_TRICKLE_3_1V			(0 << 13)
86f8ea79c2SMark Brown #define WM8350_CHG_TRICKLE_3_9V			(1 << 13)
87f8ea79c2SMark Brown 
88f8ea79c2SMark Brown /*
89f8ea79c2SMark Brown  * Supply Registers.
90f8ea79c2SMark Brown  */
91f8ea79c2SMark Brown #define WM8350_USB_VOLTAGE_READBACK             0x9C
92f8ea79c2SMark Brown #define WM8350_LINE_VOLTAGE_READBACK            0x9D
93f8ea79c2SMark Brown #define WM8350_BATT_VOLTAGE_READBACK            0x9E
94f8ea79c2SMark Brown 
95f8ea79c2SMark Brown /*
96f8ea79c2SMark Brown  * Supply Interrupts.
97f8ea79c2SMark Brown  */
98f8ea79c2SMark Brown #define WM8350_IRQ_USB_LIMIT			15
99f8ea79c2SMark Brown #define WM8350_IRQ_EXT_USB_FB			36
100f8ea79c2SMark Brown #define WM8350_IRQ_EXT_WALL_FB			37
101f8ea79c2SMark Brown #define WM8350_IRQ_EXT_BAT_FB			38
102f8ea79c2SMark Brown 
10314431aa0SMark Brown /*
10414431aa0SMark Brown  * Policy to control charger state machine.
10514431aa0SMark Brown  */
10614431aa0SMark Brown struct wm8350_charger_policy {
10714431aa0SMark Brown 
10814431aa0SMark Brown 	/* charger state machine policy  - set in machine driver */
10914431aa0SMark Brown 	int eoc_mA;		/* end of charge current (mA)  */
11014431aa0SMark Brown 	int charge_mV;		/* charge voltage */
11114431aa0SMark Brown 	int fast_limit_mA;	/* fast charge current limit */
11214431aa0SMark Brown 	int fast_limit_USB_mA;	/* USB fast charge current limit */
11314431aa0SMark Brown 	int charge_timeout;	/* charge timeout (mins) */
11414431aa0SMark Brown 	int trickle_start_mV;	/* trickle charge starts at mV */
11514431aa0SMark Brown 	int trickle_charge_mA;	/* trickle charge current */
11614431aa0SMark Brown 	int trickle_charge_USB_mA;	/* USB trickle charge current */
11714431aa0SMark Brown };
11814431aa0SMark Brown 
119add41cb4SMark Brown struct wm8350_power {
120add41cb4SMark Brown 	struct platform_device *pdev;
121297d716fSKrzysztof Kozlowski 	struct power_supply *battery;
122297d716fSKrzysztof Kozlowski 	struct power_supply *usb;
123297d716fSKrzysztof Kozlowski 	struct power_supply *ac;
12414431aa0SMark Brown 	struct wm8350_charger_policy *policy;
125d756f4a4SMark Brown 
126d756f4a4SMark Brown 	int rev_g_coeff;
127add41cb4SMark Brown };
128add41cb4SMark Brown 
129f8ea79c2SMark Brown #endif
130