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c51cb3f554
Based on 1 normalized pattern(s): licensed under the gplv2 or later extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 5 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520071859.659568621@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2011 Free Electrons
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*/
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#ifndef _AT91_ADC_H_
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#define _AT91_ADC_H_
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enum atmel_adc_ts_type {
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ATMEL_ADC_TOUCHSCREEN_NONE = 0,
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ATMEL_ADC_TOUCHSCREEN_4WIRE = 4,
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ATMEL_ADC_TOUCHSCREEN_5WIRE = 5,
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};
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/**
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* struct at91_adc_trigger - description of triggers
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* @name: name of the trigger advertised to the user
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* @value: value to set in the ADC's trigger setup register
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to enable the trigger
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* @is_external: Does the trigger rely on an external pin?
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*/
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struct at91_adc_trigger {
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const char *name;
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u8 value;
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bool is_external;
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};
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/**
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* struct at91_adc_data - platform data for ADC driver
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* @channels_used: channels in use on the board as a bitmask
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* @startup_time: startup time of the ADC in microseconds
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* @trigger_list: Triggers available in the ADC
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* @trigger_number: Number of triggers available in the ADC
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* @use_external_triggers: does the board has external triggers availables
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* @vref: Reference voltage for the ADC in millivolts
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* @touchscreen_type: If a touchscreen is connected, its type (4 or 5 wires)
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*/
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struct at91_adc_data {
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unsigned long channels_used;
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u8 startup_time;
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struct at91_adc_trigger *trigger_list;
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u8 trigger_number;
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bool use_external_triggers;
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u16 vref;
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enum atmel_adc_ts_type touchscreen_type;
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};
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extern void __init at91_add_device_adc(struct at91_adc_data *data);
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#endif
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