/* SPDX-License-Identifier: GPL-2.0-or-later */
|
/*
|
* supply.h -- Power Supply Driver for Wolfson WM8350 PMIC
|
*
|
* Copyright 2007 Wolfson Microelectronics PLC
|
*/
|
|
#ifndef __LINUX_MFD_WM8350_SUPPLY_H_
|
#define __LINUX_MFD_WM8350_SUPPLY_H_
|
|
#include <linux/mutex.h>
|
#include <linux/power_supply.h>
|
|
/*
|
* Charger registers
|
*/
|
#define WM8350_BATTERY_CHARGER_CONTROL_1 0xA8
|
#define WM8350_BATTERY_CHARGER_CONTROL_2 0xA9
|
#define WM8350_BATTERY_CHARGER_CONTROL_3 0xAA
|
|
/*
|
* R168 (0xA8) - Battery Charger Control 1
|
*/
|
#define WM8350_CHG_ENA_R168 0x8000
|
#define WM8350_CHG_THR 0x2000
|
#define WM8350_CHG_EOC_SEL_MASK 0x1C00
|
#define WM8350_CHG_TRICKLE_TEMP_CHOKE 0x0200
|
#define WM8350_CHG_TRICKLE_USB_CHOKE 0x0100
|
#define WM8350_CHG_RECOVER_T 0x0080
|
#define WM8350_CHG_END_ACT 0x0040
|
#define WM8350_CHG_FAST 0x0020
|
#define WM8350_CHG_FAST_USB_THROTTLE 0x0010
|
#define WM8350_CHG_NTC_MON 0x0008
|
#define WM8350_CHG_BATT_HOT_MON 0x0004
|
#define WM8350_CHG_BATT_COLD_MON 0x0002
|
#define WM8350_CHG_CHIP_TEMP_MON 0x0001
|
|
/*
|
* R169 (0xA9) - Battery Charger Control 2
|
*/
|
#define WM8350_CHG_ACTIVE 0x8000
|
#define WM8350_CHG_PAUSE 0x4000
|
#define WM8350_CHG_STS_MASK 0x3000
|
#define WM8350_CHG_TIME_MASK 0x0F00
|
#define WM8350_CHG_MASK_WALL_FB 0x0080
|
#define WM8350_CHG_TRICKLE_SEL 0x0040
|
#define WM8350_CHG_VSEL_MASK 0x0030
|
#define WM8350_CHG_ISEL_MASK 0x000F
|
#define WM8350_CHG_STS_OFF 0x0000
|
#define WM8350_CHG_STS_TRICKLE 0x1000
|
#define WM8350_CHG_STS_FAST 0x2000
|
|
/*
|
* R170 (0xAA) - Battery Charger Control 3
|
*/
|
#define WM8350_CHG_THROTTLE_T_MASK 0x0060
|
#define WM8350_CHG_SMART 0x0010
|
#define WM8350_CHG_TIMER_ADJT_MASK 0x000F
|
|
/*
|
* Charger Interrupts
|
*/
|
#define WM8350_IRQ_CHG_BAT_HOT 0
|
#define WM8350_IRQ_CHG_BAT_COLD 1
|
#define WM8350_IRQ_CHG_BAT_FAIL 2
|
#define WM8350_IRQ_CHG_TO 3
|
#define WM8350_IRQ_CHG_END 4
|
#define WM8350_IRQ_CHG_START 5
|
#define WM8350_IRQ_CHG_FAST_RDY 6
|
#define WM8350_IRQ_CHG_VBATT_LT_3P9 10
|
#define WM8350_IRQ_CHG_VBATT_LT_3P1 11
|
#define WM8350_IRQ_CHG_VBATT_LT_2P85 12
|
|
/*
|
* Charger Policy
|
*/
|
#define WM8350_CHG_TRICKLE_50mA (0 << 6)
|
#define WM8350_CHG_TRICKLE_100mA (1 << 6)
|
#define WM8350_CHG_4_05V (0 << 4)
|
#define WM8350_CHG_4_10V (1 << 4)
|
#define WM8350_CHG_4_15V (2 << 4)
|
#define WM8350_CHG_4_20V (3 << 4)
|
#define WM8350_CHG_FAST_LIMIT_mA(x) ((x / 50) & 0xf)
|
#define WM8350_CHG_EOC_mA(x) (((x - 10) & 0x7) << 10)
|
#define WM8350_CHG_TRICKLE_3_1V (0 << 13)
|
#define WM8350_CHG_TRICKLE_3_9V (1 << 13)
|
|
/*
|
* Supply Registers.
|
*/
|
#define WM8350_USB_VOLTAGE_READBACK 0x9C
|
#define WM8350_LINE_VOLTAGE_READBACK 0x9D
|
#define WM8350_BATT_VOLTAGE_READBACK 0x9E
|
|
/*
|
* Supply Interrupts.
|
*/
|
#define WM8350_IRQ_USB_LIMIT 15
|
#define WM8350_IRQ_EXT_USB_FB 36
|
#define WM8350_IRQ_EXT_WALL_FB 37
|
#define WM8350_IRQ_EXT_BAT_FB 38
|
|
/*
|
* Policy to control charger state machine.
|
*/
|
struct wm8350_charger_policy {
|
|
/* charger state machine policy - set in machine driver */
|
int eoc_mA; /* end of charge current (mA) */
|
int charge_mV; /* charge voltage */
|
int fast_limit_mA; /* fast charge current limit */
|
int fast_limit_USB_mA; /* USB fast charge current limit */
|
int charge_timeout; /* charge timeout (mins) */
|
int trickle_start_mV; /* trickle charge starts at mV */
|
int trickle_charge_mA; /* trickle charge current */
|
int trickle_charge_USB_mA; /* USB trickle charge current */
|
};
|
|
struct wm8350_power {
|
struct platform_device *pdev;
|
struct power_supply *battery;
|
struct power_supply *usb;
|
struct power_supply *ac;
|
struct wm8350_charger_policy *policy;
|
|
int rev_g_coeff;
|
};
|
|
#endif
|
