diff options
| -rw-r--r-- | drivers/iio/adc/aspeed_adc.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/drivers/iio/adc/aspeed_adc.c b/drivers/iio/adc/aspeed_adc.c index d41fd3166e6b..c1eadd670cc9 100644 --- a/drivers/iio/adc/aspeed_adc.c +++ b/drivers/iio/adc/aspeed_adc.c @@ -71,8 +71,11 @@ struct aspeed_adc_model_data { const char *model_name; unsigned int min_sampling_rate; // Hz unsigned int max_sampling_rate; // Hz - unsigned int vref_voltage; // mV + unsigned int vref_fixed_mv; bool wait_init_sequence; + bool need_prescaler; + u8 scaler_bit_width; + unsigned int num_channels; }; struct aspeed_adc_data { @@ -83,6 +86,7 @@ struct aspeed_adc_data { struct clk_hw *clk_prescaler; struct clk_hw *clk_scaler; struct reset_control *rst; + int vref_mv; }; #define ASPEED_CHAN(_idx, _data_reg_addr) { \ @@ -126,7 +130,7 @@ static int aspeed_adc_read_raw(struct iio_dev *indio_dev, return IIO_VAL_INT; case IIO_CHAN_INFO_SCALE: - *val = data->model_data->vref_voltage; + *val = data->model_data->vref_fixed_mv; *val2 = ASPEED_RESOLUTION_BITS; return IIO_VAL_FRACTIONAL_LOG2; @@ -279,7 +283,7 @@ static int aspeed_adc_probe(struct platform_device *pdev) indio_dev->info = &aspeed_adc_iio_info; indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->channels = aspeed_adc_iio_channels; - indio_dev->num_channels = ARRAY_SIZE(aspeed_adc_iio_channels); + indio_dev->num_channels = data->model_data->num_channels; ret = iio_device_register(indio_dev); if (ret) @@ -319,17 +323,23 @@ static int aspeed_adc_remove(struct platform_device *pdev) static const struct aspeed_adc_model_data ast2400_model_data = { .model_name = "ast2400-adc", - .vref_voltage = 2500, // mV + .vref_fixed_mv = 2500, .min_sampling_rate = 10000, .max_sampling_rate = 500000, + .need_prescaler = true, + .scaler_bit_width = 10, + .num_channels = 16, }; static const struct aspeed_adc_model_data ast2500_model_data = { .model_name = "ast2500-adc", - .vref_voltage = 1800, // mV + .vref_fixed_mv = 1800, .min_sampling_rate = 1, .max_sampling_rate = 1000000, .wait_init_sequence = true, + .need_prescaler = true, + .scaler_bit_width = 10, + .num_channels = 16, }; static const struct of_device_id aspeed_adc_matches[] = { |