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iio: at91-sama5d2_adc: Use IIO_STATIC_CONST_DEVICE_ATTR()

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Slightly simplify by dropping open-coded constant data iio_dev_attr
functions and using the IIO_STATIC_CONST_DEVICE_ATTR() instead.

Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Tested-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/4476a4ce852febb3eb863878e66751c787195b18.1664782676.git.mazziesaccount@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Matti Vaittinen 2022-10-03 11:13:31 +03:00 • committed by Jonathan Cameron
parent c02b2a5166
commit c1531e3ad4
1 changed files with 3 additions and 16 deletions
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19
drivers/iio/adc/at91-sama5d2_adc.c
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@ -2193,26 +2193,13 @@ static ssize_t at91_adc_get_watermark(struct device *dev,
return scnprintf(buf, PAGE_SIZE, "%d\n", st->dma_st.watermark);
}
static ssize_t hwfifo_watermark_min_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return sysfs_emit(buf, "%s\n", "2");
}
static ssize_t hwfifo_watermark_max_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return sysfs_emit(buf, "%s\n", AT91_HWFIFO_MAX_SIZE_STR);
}
static IIO_DEVICE_ATTR(hwfifo_enabled, 0444,
at91_adc_get_fifo_state, NULL, 0);
static IIO_DEVICE_ATTR(hwfifo_watermark, 0444,
at91_adc_get_watermark, NULL, 0);
static IIO_DEVICE_ATTR_RO(hwfifo_watermark_min, 0);
static IIO_DEVICE_ATTR_RO(hwfifo_watermark_max, 0);
IIO_STATIC_CONST_DEVICE_ATTR(hwfifo_watermark_min, "2");
IIO_STATIC_CONST_DEVICE_ATTR(hwfifo_watermark_max, AT91_HWFIFO_MAX_SIZE_STR);
static const struct attribute *at91_adc_fifo_attributes[] = {
&iio_dev_attr_hwfifo_watermark_min.dev_attr.attr,