github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-30 10:04:04 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

iio: adc: ad7173: add SPI offload support

Browse Source 
Enable SPI offload support for the AD7173 ADC driver.

The scan_type used for SPI offload is assuming that we are using the
ad411x_ad717x HDL project [1] which always stores data words in 32-bits.

Link: https://analogdevicesinc.github.io/hdl/projects/ad411x_ad717x/index.html [1]
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250710-iio-adc-ad7173-add-spi-offload-support-v4-1-536857c4e043@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
David Lechner 2025-07-10 17:22:00 -05:00 committed by Jonathan Cameron
parent 9ae68c9bb1
commit 329cb8be15
1 changed files with 14 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/iio/adc/ad7173.c
View File

@ -746,6 +746,7 @@ static const struct ad_sigma_delta_info ad7173_sigma_delta_info_4_slots = {
.set_mode = ad7173_set_mode,
.has_registers = true,
.has_named_irqs = true,
.supports_spi_offload = true,
.addr_shift = 0,
.read_mask = BIT(6),
.status_ch_mask = GENMASK(3, 0),
@ -762,6 +763,7 @@ static const struct ad_sigma_delta_info ad7173_sigma_delta_info_8_slots = {
.set_mode = ad7173_set_mode,
.has_registers = true,
.has_named_irqs = true,
.supports_spi_offload = true,
.addr_shift = 0,
.read_mask = BIT(6),
.status_ch_mask = GENMASK(3, 0),
@ -778,6 +780,7 @@ static const struct ad_sigma_delta_info ad7173_sigma_delta_info_16_slots = {
.set_mode = ad7173_set_mode,
.has_registers = true,
.has_named_irqs = true,
.supports_spi_offload = true,
.addr_shift = 0,
.read_mask = BIT(6),
.status_ch_mask = GENMASK(3, 0),
@ -1595,6 +1598,11 @@ static int ad7173_fw_parse_channel_config(struct iio_dev *indio_dev)
if (st->info->data_reg_only_16bit)
chan_arr[chan_index].scan_type = ad4113_scan_type;
if (ad_sigma_delta_has_spi_offload(&st->sd)) {
chan_arr[chan_index].scan_type.storagebits = 32;
chan_arr[chan_index].scan_type.endianness = IIO_CPU;
}
chan_index++;
}
@ -1685,6 +1693,12 @@ static int ad7173_fw_parse_channel_config(struct iio_dev *indio_dev)
if (st->info->data_reg_only_16bit)
chan_arr[chan_index].scan_type = ad4113_scan_type;
/* Assuming SPI offload is ad411x_ad717x HDL project. */
if (ad_sigma_delta_has_spi_offload(&st->sd)) {
chan_arr[chan_index].scan_type.storagebits = 32;
chan_arr[chan_index].scan_type.endianness = IIO_CPU;
}
chan_index++;
}
return 0;