LXR uboot/drivers/input/twl6030.c

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