Add support for data capture synchronization through CNV signal or
bit-slip.
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@xxxxxxxxxx>
---
drivers/iio/adc/adi-axi-adc.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/drivers/iio/adc/adi-axi-adc.c b/drivers/iio/adc/adi-axi-adc.c
index c7811667f853..7f6dc0ff7c54 100644
--- a/drivers/iio/adc/adi-axi-adc.c
+++ b/drivers/iio/adc/adi-axi-adc.c
@@ -53,6 +53,7 @@
#define AXI_AD485X_PACKET_FORMAT_20BIT 0x0
#define AXI_AD485X_PACKET_FORMAT_24BIT 0x1
#define AXI_AD485X_PACKET_FORMAT_32BIT 0x2
+#define AXI_AD408X_CNTRL_3_SELF_SYNC_EN_MSK BIT(1)
#define AXI_AD408X_CNTRL_3_FILTER_EN_MSK BIT(0)
#define ADI_AXI_ADC_REG_DRP_STATUS 0x0074
@@ -436,6 +437,22 @@ static int axi_adc_ad408x_bitslip_disable(struct iio_backend *back)
AXI_AD408X_CTRL_BITSLIP_EN_MSK);
}
+static int axi_adc_ad408x_self_sync_enable(struct iio_backend *back)
+{
+ struct adi_axi_adc_state *st = iio_backend_get_priv(back);
+
+ return regmap_set_bits(st->regmap, ADI_AXI_ADC_REG_CNTRL_3,
+ AXI_AD408X_CNTRL_3_SELF_SYNC_EN_MSK);
+}
+
+static int axi_adc_ad408x_self_sync_disable(struct iio_backend *back)
+{
+ struct adi_axi_adc_state *st = iio_backend_get_priv(back);
+
+ return regmap_clear_bits(st->regmap, ADI_AXI_ADC_REG_CNTRL_3,
+ AXI_AD408X_CNTRL_3_SELF_SYNC_EN_MSK);
+}
+
static struct iio_buffer *axi_adc_request_buffer(struct iio_backend *back,
struct iio_dev *indio_dev)
{
@@ -628,6 +645,8 @@ static const struct iio_backend_ops adi_ad408x_ops = {
.filter_disable = axi_adc_ad408x_filter_disable,
.bitslip_enable = axi_adc_ad408x_bitslip_enable,
.bitslip_disable = axi_adc_ad408x_bitslip_disable,
+ .self_sync_enable = axi_adc_ad408x_self_sync_enable,
+ .self_sync_disable = axi_adc_ad408x_self_sync_disable,
.debugfs_reg_access = iio_backend_debugfs_ptr(axi_adc_reg_access),
.debugfs_print_chan_status = iio_backend_debugfs_ptr(axi_adc_debugfs_print_chan_status),
};
--
2.48.1
