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iio: adc: ad7606: add missing max sample rates

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Add max sample rates for all of the chips. Previously, only one chip had
this field populated. The fallback value for the initial sampling
frequency can be removed now that all chips have a max sample rate
defined.

Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250318-iio-adc-ad7606-improvements-v2-3-4b605427774c@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
David Lechner
2025-03-18 17:52:11 -05:00
committed by Jonathan Cameron
parent 4d71bf6021
commit 40fa5f535d
1 changed files with 11 additions and 2 deletions
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13
drivers/iio/adc/ad7606.c
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@@ -196,6 +196,7 @@ static int ad7616_sw_mode_setup(struct iio_dev *indio_dev);
static int ad7606b_sw_mode_setup(struct iio_dev *indio_dev);
const struct ad7606_chip_info ad7605_4_info = {
.max_samplerate = 300 * KILO,
.channels = ad7605_channels,
.name = "ad7605-4",
.num_adc_channels = 4,
@@ -205,6 +206,7 @@ const struct ad7606_chip_info ad7605_4_info = {
EXPORT_SYMBOL_NS_GPL(ad7605_4_info, "IIO_AD7606");
const struct ad7606_chip_info ad7606_8_info = {
.max_samplerate = 200 * KILO,
.channels = ad7606_channels_16bit,
.name = "ad7606-8",
.num_adc_channels = 8,
@@ -216,6 +218,7 @@ const struct ad7606_chip_info ad7606_8_info = {
EXPORT_SYMBOL_NS_GPL(ad7606_8_info, "IIO_AD7606");
const struct ad7606_chip_info ad7606_6_info = {
.max_samplerate = 200 * KILO,
.channels = ad7606_channels_16bit,
.name = "ad7606-6",
.num_adc_channels = 6,
@@ -227,6 +230,7 @@ const struct ad7606_chip_info ad7606_6_info = {
EXPORT_SYMBOL_NS_GPL(ad7606_6_info, "IIO_AD7606");
const struct ad7606_chip_info ad7606_4_info = {
.max_samplerate = 200 * KILO,
.channels = ad7606_channels_16bit,
.name = "ad7606-4",
.num_adc_channels = 4,
@@ -251,6 +255,7 @@ const struct ad7606_chip_info ad7606b_info = {
EXPORT_SYMBOL_NS_GPL(ad7606b_info, "IIO_AD7606");
const struct ad7606_chip_info ad7606c_16_info = {
.max_samplerate = 1 * MEGA,
.channels = ad7606_channels_16bit,
.name = "ad7606c16",
.num_adc_channels = 8,
@@ -263,6 +268,7 @@ const struct ad7606_chip_info ad7606c_16_info = {
EXPORT_SYMBOL_NS_GPL(ad7606c_16_info, "IIO_AD7606");
const struct ad7606_chip_info ad7607_info = {
.max_samplerate = 200 * KILO,
.channels = ad7607_channels,
.name = "ad7607",
.num_adc_channels = 8,
@@ -274,6 +280,7 @@ const struct ad7606_chip_info ad7607_info = {
EXPORT_SYMBOL_NS_GPL(ad7607_info, "IIO_AD7606");
const struct ad7606_chip_info ad7608_info = {
.max_samplerate = 200 * KILO,
.channels = ad7608_channels,
.name = "ad7608",
.num_adc_channels = 8,
@@ -285,6 +292,7 @@ const struct ad7606_chip_info ad7608_info = {
EXPORT_SYMBOL_NS_GPL(ad7608_info, "IIO_AD7606");
const struct ad7606_chip_info ad7609_info = {
.max_samplerate = 200 * KILO,
.channels = ad7608_channels,
.name = "ad7609",
.num_adc_channels = 8,
@@ -296,6 +304,7 @@ const struct ad7606_chip_info ad7609_info = {
EXPORT_SYMBOL_NS_GPL(ad7609_info, "IIO_AD7606");
const struct ad7606_chip_info ad7606c_18_info = {
.max_samplerate = 1 * MEGA,
.channels = ad7606_channels_18bit,
.name = "ad7606c18",
.num_adc_channels = 8,
@@ -308,6 +317,7 @@ const struct ad7606_chip_info ad7606c_18_info = {
EXPORT_SYMBOL_NS_GPL(ad7606c_18_info, "IIO_AD7606");
const struct ad7606_chip_info ad7616_info = {
.max_samplerate = 1 * MEGA,
.channels = ad7616_channels,
.init_delay_ms = 15,
.name = "ad7616",
@@ -1396,8 +1406,7 @@ int ad7606_probe(struct device *dev, int irq, void __iomem *base_address,
* If there is a backend, the PWM should not overpass the maximum sampling
* frequency the chip supports.
*/
ret = ad7606_set_sampling_freq(st,
chip_info->max_samplerate ? : 2 * KILO);
ret = ad7606_set_sampling_freq(st, chip_info->max_samplerate);
if (ret)
return ret;