cregit-Linux how code gets into the kernel

Release 4.7 drivers/staging/iio/meter/ade7758_trigger.c

/*
 * ADE7758 Poly Phase Multifunction Energy Metering IC driver
 *
 * Copyright 2010-2011 Analog Devices Inc.
 *
 * Licensed under the GPL-2.
 */

#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/spi/spi.h>
#include <linux/export.h>

#include <linux/iio/iio.h>
#include <linux/iio/trigger.h>
#include "ade7758.h"

/**
 * ade7758_data_rdy_trig_poll() the event handler for the data rdy trig
 **/

static irqreturn_t ade7758_data_rdy_trig_poll(int irq, void *private) { disable_irq_nosync(irq); iio_trigger_poll(private); return IRQ_HANDLED; }

Contributors

PersonTokensPropCommitsCommitProp
barry songbarry song1765.38%150.00%
jonathan cameronjonathan cameron934.62%150.00%
Total26100.00%2100.00%

/** * ade7758_data_rdy_trigger_set_state() set datardy interrupt state **/
static int ade7758_data_rdy_trigger_set_state(struct iio_trigger *trig, bool state) { struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig); dev_dbg(&indio_dev->dev, "%s (%d)\n", __func__, state); return ade7758_set_irq(&indio_dev->dev, state); }

Contributors

PersonTokensPropCommitsCommitProp
barry songbarry song4489.80%125.00%
lars-peter clausenlars-peter clausen36.12%125.00%
jonathan cameronjonathan cameron12.04%125.00%
michael hennerichmichael hennerich12.04%125.00%
Total49100.00%4100.00%

/** * ade7758_trig_try_reen() try renabling irq for data rdy trigger * @trig: the datardy trigger **/
static int ade7758_trig_try_reen(struct iio_trigger *trig) { struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig); struct ade7758_state *st = iio_priv(indio_dev); enable_irq(st->us->irq); /* irq reenabled so success! */ return 0; }

Contributors

PersonTokensPropCommitsCommitProp
barry songbarry song2965.91%133.33%
michael hennerichmichael hennerich1227.27%133.33%
lars-peter clausenlars-peter clausen36.82%133.33%
Total44100.00%3100.00%

static const struct iio_trigger_ops ade7758_trigger_ops = { .owner = THIS_MODULE, .set_trigger_state = &ade7758_data_rdy_trigger_set_state, .try_reenable = &ade7758_trig_try_reen, };
int ade7758_probe_trigger(struct iio_dev *indio_dev) { struct ade7758_state *st = iio_priv(indio_dev); int ret; st->trig = iio_trigger_alloc("%s-dev%d", spi_get_device_id(st->us)->name, indio_dev->id); if (!st->trig) { ret = -ENOMEM; goto error_ret; } ret = request_irq(st->us->irq, ade7758_data_rdy_trig_poll, IRQF_TRIGGER_LOW, spi_get_device_id(st->us)->name, st->trig); if (ret) goto error_free_trig; st->trig->dev.parent = &st->us->dev; st->trig->ops = &ade7758_trigger_ops; iio_trigger_set_drvdata(st->trig, indio_dev); ret = iio_trigger_register(st->trig); /* select default trigger */ indio_dev->trig = iio_trigger_get(st->trig); if (ret) goto error_free_irq; return 0; error_free_irq: free_irq(st->us->irq, st->trig); error_free_trig: iio_trigger_free(st->trig); error_ret: return ret; }

Contributors

PersonTokensPropCommitsCommitProp
barry songbarry song9147.89%110.00%
jonathan cameronjonathan cameron5327.89%330.00%
michael hennerichmichael hennerich3618.95%220.00%
lars-peter clausenlars-peter clausen63.16%220.00%
srinivas pandruvadasrinivas pandruvada31.58%110.00%
cristina opriceanacristina opriceana10.53%110.00%
Total190100.00%10100.00%


void ade7758_remove_trigger(struct iio_dev *indio_dev) { struct ade7758_state *st = iio_priv(indio_dev); iio_trigger_unregister(st->trig); free_irq(st->us->irq, st->trig); iio_trigger_free(st->trig); }

Contributors

PersonTokensPropCommitsCommitProp
barry songbarry song2757.45%125.00%
jonathan cameronjonathan cameron1123.40%125.00%
michael hennerichmichael hennerich817.02%125.00%
lars-peter clausenlars-peter clausen12.13%125.00%
Total47100.00%4100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
barry songbarry song22755.91%18.33%
jonathan cameronjonathan cameron10124.88%433.33%
michael hennerichmichael hennerich5814.29%216.67%
lars-peter clausenlars-peter clausen133.20%216.67%
paul gortmakerpaul gortmaker30.74%18.33%
srinivas pandruvadasrinivas pandruvada30.74%18.33%
cristina opriceanacristina opriceana10.25%18.33%
Total406100.00%12100.00%
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