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Commit 54e018da authored by Lars-Peter Clausen's avatar Lars-Peter Clausen Committed by Jonathan Cameron
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iio:ad7266: Mark transfer buffer as __be16



Fixes the following warnings from sparse:
	drivers/iio/adc/ad7266.c:140:16: warning: cast to restricted __be16
	drivers/iio/adc/ad7266.c:140:16: warning: cast to restricted __be16
	drivers/iio/adc/ad7266.c:140:16: warning: cast to restricted __be16
	drivers/iio/adc/ad7266.c:140:16: warning: cast to restricted __be16

Signed-off-by: default avatarLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 791bb52a
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+12 −9
Original line number Diff line number Diff line
@@ -43,19 +43,22 @@ struct ad7266_state {
	 * The buffer needs to be large enough to hold two samples (4 bytes) and
	 * the naturally aligned timestamp (8 bytes).
	 */
	uint8_t data[ALIGN(4, sizeof(s64)) + sizeof(s64)] ____cacheline_aligned;
	struct {
		__be16 sample[2];
		s64 timestamp;
	} data ____cacheline_aligned;
};

static int ad7266_wakeup(struct ad7266_state *st)
{
	/* Any read with >= 2 bytes will wake the device */
	return spi_read(st->spi, st->data, 2);
	return spi_read(st->spi, &st->data.sample[0], 2);
}

static int ad7266_powerdown(struct ad7266_state *st)
{
	/* Any read with < 2 bytes will powerdown the device */
	return spi_read(st->spi, st->data, 1);
	return spi_read(st->spi, &st->data.sample[0], 1);
}

static int ad7266_preenable(struct iio_dev *indio_dev)
@@ -84,9 +87,9 @@ static irqreturn_t ad7266_trigger_handler(int irq, void *p)
	struct ad7266_state *st = iio_priv(indio_dev);
	int ret;

	ret = spi_read(st->spi, st->data, 4);
	ret = spi_read(st->spi, st->data.sample, 4);
	if (ret == 0) {
		iio_push_to_buffers_with_timestamp(indio_dev, st->data,
		iio_push_to_buffers_with_timestamp(indio_dev, &st->data,
			    pf->timestamp);
	}

@@ -137,7 +140,7 @@ static int ad7266_read_single(struct ad7266_state *st, int *val,
	ad7266_select_input(st, address);

	ret = spi_sync(st->spi, &st->single_msg);
	*val = be16_to_cpu(st->data[address % 2]);
	*val = be16_to_cpu(st->data.sample[address % 2]);

	return ret;
}
@@ -442,15 +445,15 @@ static int ad7266_probe(struct spi_device *spi)
	ad7266_init_channels(indio_dev);

	/* wakeup */
	st->single_xfer[0].rx_buf = &st->data;
	st->single_xfer[0].rx_buf = &st->data.sample[0];
	st->single_xfer[0].len = 2;
	st->single_xfer[0].cs_change = 1;
	/* conversion */
	st->single_xfer[1].rx_buf = &st->data;
	st->single_xfer[1].rx_buf = st->data.sample;
	st->single_xfer[1].len = 4;
	st->single_xfer[1].cs_change = 1;
	/* powerdown */
	st->single_xfer[2].tx_buf = &st->data;
	st->single_xfer[2].tx_buf = &st->data.sample[0];
	st->single_xfer[2].len = 1;

	spi_message_init(&st->single_msg);