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authorRamona Gradinariu2023-09-26 11:57:21 +0300
committerJonathan Cameron2023-10-05 14:44:05 +0100
commitd2d1ecc67c48caf479319c4e1ab3d7896f826429 (patch)
tree00f81f799588799b2c2048ff33e3bebe42b80860 /drivers/iio
parent500d7640f63d557c397f74b7d5bf8c81377b50b3 (diff)
iio: imu: adis16475: Add buffer padding after temp channel
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: 8f6bc87d67c0 ("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>
Diffstat (limited to 'drivers/iio')
-rw-r--r--drivers/iio/imu/adis16475.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/iio/imu/adis16475.c b/drivers/iio/imu/adis16475.c
index 00e4e09cdafb..9af07fec0d89 100644
--- a/drivers/iio/imu/adis16475.c
+++ b/drivers/iio/imu/adis16475.c
@@ -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;