This adds support for detecting a few inputs exported by the TWL6030. Currently-supported inputs are the power button, USB and charger presence. Signed-off-by: Paul Kocialkowski <contact@paulk.fr>master
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/*
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* TWL6030 input |
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* |
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* Copyright (C) 2016 Paul Kocialkowski <contact@paulk.fr> |
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* |
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* SPDX-License-Identifier: GPL-2.0+ |
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*/ |
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#include <twl6030.h> |
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int twl6030_input_power_button(void) |
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{ |
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u8 value; |
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twl6030_i2c_read_u8(TWL6030_CHIP_PM, TWL6030_STS_HW_CONDITIONS, &value); |
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/* Power button is active low. */ |
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if (value & TWL6030_STS_HW_CONDITIONS_PWRON) |
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return 0; |
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return 1; |
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} |
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int twl6030_input_charger(void) |
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{ |
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u8 value; |
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twl6030_i2c_read_u8(TWL6030_CHIP_CHARGER, TWL6030_CONTROLLER_STAT1, |
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&value); |
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if (value & TWL6030_CONTROLLER_STAT1_VAC_DET) |
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return 1; |
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return 0; |
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} |
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int twl6030_input_usb(void) |
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{ |
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u8 value; |
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twl6030_i2c_read_u8(TWL6030_CHIP_CHARGER, TWL6030_CONTROLLER_STAT1, |
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&value); |
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if (value & TWL6030_CONTROLLER_STAT1_VBUS_DET) |
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return 1; |
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return 0; |
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} |
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