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iio: adc: vf610: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
[ Upstream commit7765dfaa22
] To make code more readable, use a structure to express the channel layout and ensure the timestamp is 8 byte aligned. Found during an audit of all calls of uses of iio_push_to_buffers_with_timestamp() Fixes:0010d6b444
("iio: adc: vf610: Add IIO buffer support for Vybrid ADC") Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Stefan-Gabriel Mirea <stefan-gabriel.mirea@nxp.com> Cc: Sanchayan Maity <maitysanchayan@gmail.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20210501170121.512209-10-jic23@kernel.org Signed-off-by: Sasha Levin <sashal@kernel.org>
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1 changed files with 7 additions and 3 deletions
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@ -167,7 +167,11 @@ struct vf610_adc {
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u32 sample_freq_avail[5];
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struct completion completion;
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u16 buffer[8];
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/* Ensure the timestamp is naturally aligned */
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struct {
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u16 chan;
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s64 timestamp __aligned(8);
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} scan;
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};
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static const u32 vf610_hw_avgs[] = { 1, 4, 8, 16, 32 };
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@ -579,9 +583,9 @@ static irqreturn_t vf610_adc_isr(int irq, void *dev_id)
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if (coco & VF610_ADC_HS_COCO0) {
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info->value = vf610_adc_read_data(info);
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if (iio_buffer_enabled(indio_dev)) {
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info->buffer[0] = info->value;
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info->scan.chan = info->value;
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iio_push_to_buffers_with_timestamp(indio_dev,
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info->buffer,
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&info->scan,
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iio_get_time_ns(indio_dev));
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iio_trigger_notify_done(indio_dev->trig);
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} else
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