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iio: mcp320x: Fix occasional incorrect readings

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Without the cacheline alignment, the readings will occasionally incorrectly
return 0.

Signed-off-by: Michael Welling <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>
This commit is contained in:
Michael Welling
2015-05-07 11:12:20 +01:00
committed by Jonathan Cameron
parent 1d93353da5
commit 0e81bc99a0
1 changed files with 3 additions and 3 deletions
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drivers/iio/adc/mcp320x.c
+3 -3
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@@ -60,12 +60,12 @@ struct mcp320x {
struct spi_message msg;
struct spi_transfer transfer[2];
u8 tx_buf;
u8 rx_buf[2];
struct regulator *reg;
struct mutex lock;
const struct mcp320x_chip_info *chip_info;
u8 tx_buf ____cacheline_aligned;
u8 rx_buf[2];
};
static int mcp320x_channel_to_tx_data(int device_index,