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drivers/input/twl6030.c 781 Bytes
461484c27   Paul Kocialkowski   input: TWL6030 in...
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  /*
   * TWL6030 input
   *
   * Copyright (C) 2016 Paul Kocialkowski <contact@paulk.fr>
   *
   * SPDX-License-Identifier:	GPL-2.0+
   */
  
  #include <twl6030.h>
  
  int twl6030_input_power_button(void)
  {
  	u8 value;
  
  	twl6030_i2c_read_u8(TWL6030_CHIP_PM, TWL6030_STS_HW_CONDITIONS, &value);
  
  	/* Power button is active low. */
  	if (value & TWL6030_STS_HW_CONDITIONS_PWRON)
  		return 0;
  
  	return 1;
  }
  
  int twl6030_input_charger(void)
  {
  	u8 value;
  
  	twl6030_i2c_read_u8(TWL6030_CHIP_CHARGER, TWL6030_CONTROLLER_STAT1,
  		&value);
  
  	if (value & TWL6030_CONTROLLER_STAT1_VAC_DET)
  		return 1;
  
  	return 0;
  }
  
  int twl6030_input_usb(void)
  {
  	u8 value;
  
  	twl6030_i2c_read_u8(TWL6030_CHIP_CHARGER, TWL6030_CONTROLLER_STAT1,
  		&value);
  
  	if (value & TWL6030_CONTROLLER_STAT1_VBUS_DET)
  		return 1;
  
  	return 0;
  }