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authorIgor Opaniuk <igor.opaniuk@toradex.com>2020-11-13 14:11:10 +0200
committerIgor Opaniuk <igor.opaniuk@toradex.com>2020-11-13 14:17:32 +0200
commit3b59d4725be760cd276094079b4fbe7bd44e1464 (patch)
tree37a4892c12efe64a69453ecdb694866dd18dc4f5 /drivers/iio/adc/ti-adc081c.c
parent4d47b797d6bb1db34ddf702f2cf78104be135a8f (diff)
parent70d1232fdbe28e4c765c4cfc3cc5c7580959d5e0 (diff)
Merge commit '70d1232fdbe28e4c765c4cfc3cc5c7580959d5e0' into toradex_5.4-2.1.x-imx
Update 5.4-2.1.x-imx to v5.4.74 from [1]. [1] https://github.com/Freescale/linux-fslc
Diffstat (limited to 'drivers/iio/adc/ti-adc081c.c')
-rw-r--r--drivers/iio/adc/ti-adc081c.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/iio/adc/ti-adc081c.c b/drivers/iio/adc/ti-adc081c.c
index 0235863ff77b..cc8cbffe2b7b 100644
--- a/drivers/iio/adc/ti-adc081c.c
+++ b/drivers/iio/adc/ti-adc081c.c
@@ -33,6 +33,12 @@ struct adc081c {
/* 8, 10 or 12 */
int bits;
+
+ /* Ensure natural alignment of buffer elements */
+ struct {
+ u16 channel;
+ s64 ts __aligned(8);
+ } scan;
};
#define REG_CONV_RES 0x00
@@ -128,14 +134,13 @@ static irqreturn_t adc081c_trigger_handler(int irq, void *p)
struct iio_poll_func *pf = p;
struct iio_dev *indio_dev = pf->indio_dev;
struct adc081c *data = iio_priv(indio_dev);
- u16 buf[8]; /* 2 bytes data + 6 bytes padding + 8 bytes timestamp */
int ret;
ret = i2c_smbus_read_word_swapped(data->i2c, REG_CONV_RES);
if (ret < 0)
goto out;
- buf[0] = ret;
- iio_push_to_buffers_with_timestamp(indio_dev, buf,
+ data->scan.channel = ret;
+ iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
iio_get_time_ns(indio_dev));
out:
iio_trigger_notify_done(indio_dev->trig);