zpa2326.c (c6a677c6f37bb7abc85ba7e3465e82b9f7eb1d91) zpa2326.c (e7215fe4d51e69c9d2608ad0c409d48e844d0adc)
1/*
2 * Murata ZPA2326 pressure and temperature sensor IIO driver
3 *
4 * Copyright (c) 2016 Parrot S.A.
5 *
6 * Author: Gregor Boirie <gregor.boirie@parrot.com>
7 *
8 * This program is free software; you can redistribute it and/or modify it

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862 *
863 * Return: Zero when successful, a negative error code otherwise.
864 */
865static int zpa2326_wait_oneshot_completion(const struct iio_dev *indio_dev,
866 struct zpa2326_private *private)
867{
868 int ret;
869 unsigned int val;
1/*
2 * Murata ZPA2326 pressure and temperature sensor IIO driver
3 *
4 * Copyright (c) 2016 Parrot S.A.
5 *
6 * Author: Gregor Boirie <gregor.boirie@parrot.com>
7 *
8 * This program is free software; you can redistribute it and/or modify it

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862 *
863 * Return: Zero when successful, a negative error code otherwise.
864 */
865static int zpa2326_wait_oneshot_completion(const struct iio_dev *indio_dev,
866 struct zpa2326_private *private)
867{
868 int ret;
869 unsigned int val;
870 long timeout;
870
871 zpa2326_dbg(indio_dev, "waiting for one shot completion interrupt");
872
871
872 zpa2326_dbg(indio_dev, "waiting for one shot completion interrupt");
873
873 ret = wait_for_completion_interruptible_timeout(
874 timeout = wait_for_completion_interruptible_timeout(
874 &private->data_ready, ZPA2326_CONVERSION_JIFFIES);
875 &private->data_ready, ZPA2326_CONVERSION_JIFFIES);
875 if (ret > 0)
876 if (timeout > 0)
876 /*
877 * Interrupt handler completed before timeout: return operation
878 * status.
879 */
880 return private->result;
881
882 /* Clear all interrupts just to be sure. */
883 regmap_read(private->regmap, ZPA2326_INT_SOURCE_REG, &val);
884
877 /*
878 * Interrupt handler completed before timeout: return operation
879 * status.
880 */
881 return private->result;
882
883 /* Clear all interrupts just to be sure. */
884 regmap_read(private->regmap, ZPA2326_INT_SOURCE_REG, &val);
885
885 if (!ret)
886 if (!timeout) {
886 /* Timed out. */
887 /* Timed out. */
888 zpa2326_warn(indio_dev, "no one shot interrupt occurred (%ld)",
889 timeout);
887 ret = -ETIME;
890 ret = -ETIME;
891 } else if (timeout < 0) {
892 zpa2326_warn(indio_dev,
893 "wait for one shot interrupt cancelled");
894 ret = -ERESTARTSYS;
895 }
888
896
889 if (ret != -ERESTARTSYS)
890 zpa2326_warn(indio_dev, "no one shot interrupt occurred (%d)",
891 ret);
892
893 return ret;
894}
895
896static int zpa2326_init_managed_irq(struct device *parent,
897 struct iio_dev *indio_dev,
898 struct zpa2326_private *private,
899 int irq)
900{

--- 831 unchanged lines hidden --- 		897 return ret;
898}
899
900static int zpa2326_init_managed_irq(struct device *parent,
901 struct iio_dev *indio_dev,
902 struct zpa2326_private *private,
903 int irq)
904{

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