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iio: imu: adis16475: Add buffer padding after temp channel

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The temperature channel has 16-bit storage size. We need to perform
the padding to have the buffer elements naturally aligned in case
the temperature channel is enabled and there are any 32-bit storage
size channels enabled which have a scan index higher than the
temperature channel scan index.

Fixes: 8f6bc87d67 ("iio: imu: adis16475.c: Add delta angle and delta velocity channels")
Signed-off-by: Ramona Gradinariu <ramona.gradinariu@analog.com>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20230926085721.645687-2-ramona.gradinariu@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Ramona Gradinariu 2023-09-26 11:57:21 +03:00 committed by Jonathan Cameron
parent 500d7640f6
commit d2d1ecc67c
1 changed files with 10 additions and 0 deletions
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10
drivers/iio/imu/adis16475.c
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@ -1197,6 +1197,16 @@ static irqreturn_t adis16475_trigger_handler(int irq, void *p)
switch (bit) {
case ADIS16475_SCAN_TEMP:
st->data[i++] = buffer[offset];
/*
* The temperature channel has 16-bit storage size.
* We need to perform the padding to have the buffer
* elements naturally aligned in case there are any
* 32-bit storage size channels enabled which have a
* scan index higher than the temperature channel scan
* index.
*/
if (*indio_dev->active_scan_mask & GENMASK(ADIS16475_SCAN_DELTVEL_Z, ADIS16475_SCAN_DELTANG_X))
st->data[i++] = 0;
break;
case ADIS16475_SCAN_DELTANG_X ... ADIS16475_SCAN_DELTVEL_Z:
buff_offset = ADIS16475_SCAN_DELTANG_X;