[PATCH 04/10] iio: adc: mxs-lradc-adc: use struct with aligned_s64 timestamp

[David Lechner <dlechner@baylibre.com>]

Use a struct with aligned s64_timestamp instead of a padded array for
the buffer used for iio_push_to_buffers_with_ts(). This makes it easier
to see the correctness of the size and alignment of the buffer.

Signed-off-by: David Lechner <dlechner@baylibre.com>
---
 drivers/iio/adc/mxs-lradc-adc.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/iio/adc/mxs-lradc-adc.c b/drivers/iio/adc/mxs-lradc-adc.c
index 92baf3f5f5601b863c694eb03b6d8f287e4fe6ab..73e42f0ebcaeaaa437ba5c64ecdd7759a1191e6c 100644
--- a/drivers/iio/adc/mxs-lradc-adc.c
+++ b/drivers/iio/adc/mxs-lradc-adc.c
@@ -116,7 +116,10 @@ struct mxs_lradc_adc {
 
 	void __iomem		*base;
 	/* Maximum of 8 channels + 8 byte ts */
-	u32			buffer[10] __aligned(8);
+	struct {
+		u32 data[8];
+		aligned_u64 ts;
+	} buffer;
 	struct iio_trigger	*trig;
 	struct completion	completion;
 	spinlock_t		lock;
@@ -418,14 +421,14 @@ static irqreturn_t mxs_lradc_adc_trigger_handler(int irq, void *p)
 	unsigned int i, j = 0;
 
 	for_each_set_bit(i, iio->active_scan_mask, LRADC_MAX_TOTAL_CHANS) {
-		adc->buffer[j] = readl(adc->base + LRADC_CH(j));
+		adc->buffer.data[j] = readl(adc->base + LRADC_CH(j));
 		writel(chan_value, adc->base + LRADC_CH(j));
-		adc->buffer[j] &= LRADC_CH_VALUE_MASK;
-		adc->buffer[j] /= LRADC_DELAY_TIMER_LOOP;
+		adc->buffer.data[j] &= LRADC_CH_VALUE_MASK;
+		adc->buffer.data[j] /= LRADC_DELAY_TIMER_LOOP;
 		j++;
 	}
 
-	iio_push_to_buffers_with_ts(iio, adc->buffer, sizeof(adc->buffer),
+	iio_push_to_buffers_with_ts(iio, &adc->buffer, sizeof(adc->buffer),
 				    pf->timestamp);
 
 	iio_trigger_notify_done(iio->trig);

-- 
2.43.0