From: Antoniu Miclaus Date: Fri, 16 May 2025 08:26:27 +0000 (+0300) Subject: iio: adc: adi-axi-adc: add num lanes support X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=569ddc41165ecc30f3376d3508d865a23e25fc99;p=users%2Fjedix%2Flinux-maple.git iio: adc: adi-axi-adc: add num lanes support Add support for setting the number of lanes enabled. Reviewed-by: Nuno Sá Signed-off-by: Antoniu Miclaus Link: https://patch.msgid.link/20250516082630.8236-8-antoniu.miclaus@analog.com Signed-off-by: Jonathan Cameron --- diff --git a/drivers/iio/adc/adi-axi-adc.c b/drivers/iio/adc/adi-axi-adc.c index a21e5a7e13cfe..ec08a62f0ef7c 100644 --- a/drivers/iio/adc/adi-axi-adc.c +++ b/drivers/iio/adc/adi-axi-adc.c @@ -44,6 +44,7 @@ #define ADI_AXI_ADC_REG_CONFIG_CMOS_OR_LVDS_N BIT(7) #define ADI_AXI_ADC_REG_CTRL 0x0044 +#define ADI_AXI_ADC_CTRL_NUM_LANES_MSK GENMASK(12, 8) #define ADI_AXI_ADC_CTRL_SYNC_MSK BIT(3) #define ADI_AXI_ADC_CTRL_DDR_EDGESEL_MASK BIT(1) @@ -438,6 +439,19 @@ static int axi_adc_ad408x_interface_data_align(struct iio_backend *back, 1, timeout_us); } +static int axi_adc_num_lanes_set(struct iio_backend *back, + unsigned int num_lanes) +{ + struct adi_axi_adc_state *st = iio_backend_get_priv(back); + + if (!num_lanes) + return -EINVAL; + + return regmap_update_bits(st->regmap, ADI_AXI_ADC_REG_CTRL, + ADI_AXI_ADC_CTRL_NUM_LANES_MSK, + FIELD_PREP(ADI_AXI_ADC_CTRL_NUM_LANES_MSK, num_lanes)); +} + static struct iio_buffer *axi_adc_request_buffer(struct iio_backend *back, struct iio_dev *indio_dev) { @@ -628,6 +642,7 @@ static const struct iio_backend_ops adi_ad408x_ops = { .data_sample_trigger = axi_adc_data_sample_trigger, .filter_type_set = axi_adc_ad408x_filter_type_set, .interface_data_align = axi_adc_ad408x_interface_data_align, + .num_lanes_set = axi_adc_num_lanes_set, .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), };