git.sur5r.net Git - u-boot/blob - drivers/input/twl4030.c

   1 /*
   2  * TWL4030 input
   3  *
   4  * Copyright (C) 2015 Paul Kocialkowski <contact@paulk.fr>
   5  *
   6  * SPDX-License-Identifier:     GPL-2.0+
   7  */
   8
   9 #include <twl4030.h>
  10
  11 int twl4030_input_power_button(void)
  12 {
  13         u8 data;
  14
  15         twl4030_i2c_read_u8(TWL4030_CHIP_PM_MASTER,
  16                             TWL4030_PM_MASTER_STS_HW_CONDITIONS, &data);
  17
  18         if (data & TWL4030_PM_MASTER_STS_HW_CONDITIONS_PWON)
  19                 return 1;
  20
  21         return 0;
  22 }
  23
  24 int twl4030_input_charger(void)
  25 {
  26         u8 data;
  27
  28         twl4030_i2c_read_u8(TWL4030_CHIP_PM_MASTER,
  29                             TWL4030_PM_MASTER_STS_HW_CONDITIONS, &data);
  30
  31         if (data & TWL4030_PM_MASTER_STS_HW_CONDITIONS_CHG)
  32                 return 1;
  33
  34         return 0;
  35 }
  36
  37 int twl4030_input_usb(void)
  38 {
  39         u8 data;
  40
  41         twl4030_i2c_read_u8(TWL4030_CHIP_PM_MASTER,
  42                             TWL4030_PM_MASTER_STS_HW_CONDITIONS, &data);
  43
  44         if (data & TWL4030_PM_MASTER_STS_HW_CONDITIONS_USB ||
  45             data & TWL4030_PM_MASTER_STS_HW_CONDITIONS_VBUS)
  46                 return 1;
  47
  48         return 0;
  49 }