tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * include/linux/mfd/wm831x/pdata.h -- Platform data for WM831x
3 *
4 * Copyright 2009 Wolfson Microelectronics PLC.
5 *
6 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 *
13 */
14
15#ifndef __MFD_WM831X_PDATA_H__
16#define __MFD_WM831X_PDATA_H__
17
18struct wm831x;
19struct regulator_init_data;
20
21struct wm831x_backlight_pdata {
22 int isink; /** ISINK to use, 1 or 2 */
23 int max_uA; /** Maximum current to allow */
24};
25
26struct wm831x_backup_pdata {
27 int charger_enable;
28 int no_constant_voltage; /** Disable constant voltage charging */
29 int vlim; /** Voltage limit in milivolts */
30 int ilim; /** Current limit in microamps */
31};
32
33struct wm831x_battery_pdata {
34 int enable; /** Enable charging */
35 int fast_enable; /** Enable fast charging */
36 int off_mask; /** Mask OFF while charging */
37 int trickle_ilim; /** Trickle charge current limit, in mA */
38 int vsel; /** Target voltage, in mV */
39 int eoc_iterm; /** End of trickle charge current, in mA */
40 int fast_ilim; /** Fast charge current limit, in mA */
41 int timeout; /** Charge cycle timeout, in minutes */
42};
43
44/* Sources for status LED configuration. Values are register values
45 * plus 1 to allow for a zero default for preserve.
46 */
47enum wm831x_status_src {
48 WM831X_STATUS_PRESERVE = 0, /* Keep the current hardware setting */
49 WM831X_STATUS_OTP = 1,
50 WM831X_STATUS_POWER = 2,
51 WM831X_STATUS_CHARGER = 3,
52 WM831X_STATUS_MANUAL = 4,
53};
54
55struct wm831x_status_pdata {
56 enum wm831x_status_src default_src;
57 const char *name;
58 const char *default_trigger;
59};
60
61struct wm831x_touch_pdata {
62 int fivewire; /** 1 for five wire mode, 0 for 4 wire */
63 int isel; /** Current for pen down (uA) */
64 int rpu; /** Pen down sensitivity resistor divider */
65 int pressure; /** Report pressure (boolean) */
66 int data_irq; /** Touch data ready IRQ */
67};
68
69enum wm831x_watchdog_action {
70 WM831X_WDOG_NONE = 0,
71 WM831X_WDOG_INTERRUPT = 1,
72 WM831X_WDOG_RESET = 2,
73 WM831X_WDOG_WAKE = 3,
74};
75
76struct wm831x_watchdog_pdata {
77 enum wm831x_watchdog_action primary, secondary;
78 int update_gpio;
79 unsigned int software:1;
80};
81
82#define WM831X_MAX_STATUS 2
83#define WM831X_MAX_DCDC 4
84#define WM831X_MAX_EPE 2
85#define WM831X_MAX_LDO 11
86#define WM831X_MAX_ISINK 2
87
88struct wm831x_pdata {
89 /** Called before subdevices are set up */
90 int (*pre_init)(struct wm831x *wm831x);
91 /** Called after subdevices are set up */
92 int (*post_init)(struct wm831x *wm831x);
93
94 int gpio_base;
95 struct wm831x_backlight_pdata *backlight;
96 struct wm831x_backup_pdata *backup;
97 struct wm831x_battery_pdata *battery;
98 struct wm831x_touch_pdata *touch;
99 struct wm831x_watchdog_pdata *watchdog;
100
101 /** LED1 = 0 and so on */
102 struct wm831x_status_pdata *status[WM831X_MAX_STATUS];
103 /** DCDC1 = 0 and so on */
104 struct regulator_init_data *dcdc[WM831X_MAX_DCDC];
105 /** EPE1 = 0 and so on */
106 struct regulator_init_data *epe[WM831X_MAX_EPE];
107 /** LDO1 = 0 and so on */
108 struct regulator_init_data *ldo[WM831X_MAX_LDO];
109 /** ISINK1 = 0 and so on*/
110 struct regulator_init_data *isink[WM831X_MAX_ISINK];
111};
112
113#endif