xref: /OK3568_Linux_fs/u-boot/drivers/input/twl6030.c (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun  * TWL6030 input
3*4882a593Smuzhiyun  *
4*4882a593Smuzhiyun  * Copyright (C) 2016 Paul Kocialkowski <contact@paulk.fr>
5*4882a593Smuzhiyun  *
6*4882a593Smuzhiyun  * SPDX-License-Identifier:	GPL-2.0+
7*4882a593Smuzhiyun  */
8*4882a593Smuzhiyun 
9*4882a593Smuzhiyun #include <twl6030.h>
10*4882a593Smuzhiyun 
twl6030_input_power_button(void)11*4882a593Smuzhiyun int twl6030_input_power_button(void)
12*4882a593Smuzhiyun {
13*4882a593Smuzhiyun 	u8 value;
14*4882a593Smuzhiyun 
15*4882a593Smuzhiyun 	twl6030_i2c_read_u8(TWL6030_CHIP_PM, TWL6030_STS_HW_CONDITIONS, &value);
16*4882a593Smuzhiyun 
17*4882a593Smuzhiyun 	/* Power button is active low. */
18*4882a593Smuzhiyun 	if (value & TWL6030_STS_HW_CONDITIONS_PWRON)
19*4882a593Smuzhiyun 		return 0;
20*4882a593Smuzhiyun 
21*4882a593Smuzhiyun 	return 1;
22*4882a593Smuzhiyun }
23*4882a593Smuzhiyun 
twl6030_input_charger(void)24*4882a593Smuzhiyun int twl6030_input_charger(void)
25*4882a593Smuzhiyun {
26*4882a593Smuzhiyun 	u8 value;
27*4882a593Smuzhiyun 
28*4882a593Smuzhiyun 	twl6030_i2c_read_u8(TWL6030_CHIP_CHARGER, TWL6030_CONTROLLER_STAT1,
29*4882a593Smuzhiyun 		&value);
30*4882a593Smuzhiyun 
31*4882a593Smuzhiyun 	if (value & TWL6030_CONTROLLER_STAT1_VAC_DET)
32*4882a593Smuzhiyun 		return 1;
33*4882a593Smuzhiyun 
34*4882a593Smuzhiyun 	return 0;
35*4882a593Smuzhiyun }
36*4882a593Smuzhiyun 
twl6030_input_usb(void)37*4882a593Smuzhiyun int twl6030_input_usb(void)
38*4882a593Smuzhiyun {
39*4882a593Smuzhiyun 	u8 value;
40*4882a593Smuzhiyun 
41*4882a593Smuzhiyun 	twl6030_i2c_read_u8(TWL6030_CHIP_CHARGER, TWL6030_CONTROLLER_STAT1,
42*4882a593Smuzhiyun 		&value);
43*4882a593Smuzhiyun 
44*4882a593Smuzhiyun 	if (value & TWL6030_CONTROLLER_STAT1_VBUS_DET)
45*4882a593Smuzhiyun 		return 1;
46*4882a593Smuzhiyun 
47*4882a593Smuzhiyun 	return 0;
48*4882a593Smuzhiyun }
49