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iio: adc: at91-sama5d2_adc: drop AT91_OSR_XSAMPLES defines

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Drop AT91_OSR_1SAMPLES, AT91_OSR_4SAMPLES, AT91_OSR_16SAMPLES defines
and insted use their values inline.

Suggested-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220803102855.2191070-9-claudiu.beznea@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Claudiu Beznea 2022-08-03 13:28:44 +03:00 committed by Jonathan Cameron
parent 502966c3b0
commit eea2655e10
1 changed files with 9 additions and 14 deletions
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23
drivers/iio/adc/at91-sama5d2_adc.c
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@ -304,11 +304,6 @@ static const struct at91_adc_reg_layout sama7g5_layout = {
#define AT91_HWFIFO_MAX_SIZE_STR "128"
#define AT91_HWFIFO_MAX_SIZE 128
/* Possible values for oversampling ratio */
#define AT91_OSR_1SAMPLES 1
#define AT91_OSR_4SAMPLES 4
#define AT91_OSR_16SAMPLES 16
#define AT91_SAMA5D2_CHAN_SINGLE(index, num, addr) \
{ \
.type = IIO_VOLTAGE, \
@ -743,15 +738,15 @@ static int at91_adc_config_emr(struct at91_adc_state *st,
/* select oversampling ratio from configuration */
switch (oversampling_ratio) {
case AT91_OSR_1SAMPLES:
case 1:
emr |= AT91_SAMA5D2_EMR_OSR(AT91_SAMA5D2_EMR_OSR_1SAMPLES,
osr_mask);
break;
case AT91_OSR_4SAMPLES:
case 4:
emr |= AT91_SAMA5D2_EMR_OSR(AT91_SAMA5D2_EMR_OSR_4SAMPLES,
osr_mask);
break;
case AT91_OSR_16SAMPLES:
case 16:
emr |= AT91_SAMA5D2_EMR_OSR(AT91_SAMA5D2_EMR_OSR_16SAMPLES,
osr_mask);
break;
@ -766,13 +761,13 @@ static int at91_adc_config_emr(struct at91_adc_state *st,
static int at91_adc_adjust_val_osr(struct at91_adc_state *st, int *val)
{
if (st->oversampling_ratio == AT91_OSR_1SAMPLES) {
if (st->oversampling_ratio == 1) {
/*
* in this case we only have 12 bits of real data, but channel
* is registered as 14 bits, so shift left two bits
*/
*val <<= 2;
} else if (st->oversampling_ratio == AT91_OSR_4SAMPLES) {
} else if (st->oversampling_ratio == 4) {
/*
* in this case we have 13 bits of real data, but channel
* is registered as 14 bits, so left shift one bit
@ -1875,9 +1870,9 @@ static IIO_CONST_ATTR(hwfifo_watermark_min, "2");
static IIO_CONST_ATTR(hwfifo_watermark_max, AT91_HWFIFO_MAX_SIZE_STR);
static IIO_CONST_ATTR(oversampling_ratio_available,
__stringify(AT91_OSR_1SAMPLES) " "
__stringify(AT91_OSR_4SAMPLES) " "
__stringify(AT91_OSR_16SAMPLES));
__stringify(1) " "
__stringify(4) " "
__stringify(16));
static struct attribute *at91_adc_attributes[] = {
&iio_const_attr_oversampling_ratio_available.dev_attr.attr,
@ -1973,7 +1968,7 @@ static int at91_adc_probe(struct platform_device *pdev)
bitmap_set(&st->touch_st.channels_bitmask,
st->soc_info.platform->touch_chan_p, 1);
st->oversampling_ratio = AT91_OSR_1SAMPLES;
st->oversampling_ratio = 1;
ret = of_property_read_u32(pdev->dev.of_node,
"atmel,min-sample-rate-hz",