diff options
Diffstat (limited to 'drivers/iio/adc/rn5t618-adc.c')
| -rw-r--r-- | drivers/iio/adc/rn5t618-adc.c | 29 |
1 files changed, 16 insertions, 13 deletions
diff --git a/drivers/iio/adc/rn5t618-adc.c b/drivers/iio/adc/rn5t618-adc.c index f21027e4e26a..f78fc795b69a 100644 --- a/drivers/iio/adc/rn5t618-adc.c +++ b/drivers/iio/adc/rn5t618-adc.c @@ -16,6 +16,8 @@ #include <linux/completion.h> #include <linux/regmap.h> #include <linux/iio/iio.h> +#include <linux/iio/driver.h> +#include <linux/iio/machine.h> #include <linux/slab.h> #define RN5T618_ADC_CONVERSION_TIMEOUT (msecs_to_jiffies(500)) @@ -40,11 +42,6 @@ struct rn5t618_adc_data { int irq; }; -struct rn5t618_channel_ratios { - u16 numerator; - u16 denominator; -}; - enum rn5t618_channels { LIMMON = 0, VBAT, @@ -56,7 +53,7 @@ enum rn5t618_channels { AIN0 }; -static const struct rn5t618_channel_ratios rn5t618_ratios[8] = { +static const struct u16_fract rn5t618_ratios[8] = { [LIMMON] = {50, 32}, /* measured across 20mOhm, amplified by 32 */ [VBAT] = {2, 1}, [VADP] = {3, 1}, @@ -140,9 +137,8 @@ static int rn5t618_adc_read(struct iio_dev *iio_dev, init_completion(&adc->conv_completion); /* single conversion */ - ret = regmap_update_bits(adc->rn5t618->regmap, RN5T618_ADCCNT3, - RN5T618_ADCCNT3_GODONE, - RN5T618_ADCCNT3_GODONE); + ret = regmap_set_bits(adc->rn5t618->regmap, RN5T618_ADCCNT3, + RN5T618_ADCCNT3_GODONE); if (ret < 0) return ret; @@ -189,6 +185,12 @@ static const struct iio_chan_spec rn5t618_adc_iio_channels[] = { RN5T618_ADC_CHANNEL(AIN0, IIO_VOLTAGE, "AIN0") }; +static const struct iio_map rn5t618_maps[] = { + IIO_MAP("VADP", "rn5t618-power", "vadp"), + IIO_MAP("VUSB", "rn5t618-power", "vusb"), + { } +}; + static int rn5t618_adc_probe(struct platform_device *pdev) { int ret; @@ -197,10 +199,8 @@ static int rn5t618_adc_probe(struct platform_device *pdev) struct rn5t618 *rn5t618 = dev_get_drvdata(pdev->dev.parent); iio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*adc)); - if (!iio_dev) { - dev_err(&pdev->dev, "failed allocating iio device\n"); + if (!iio_dev) return -ENOMEM; - } adc = iio_priv(iio_dev); adc->dev = &pdev->dev; @@ -218,7 +218,6 @@ static int rn5t618_adc_probe(struct platform_device *pdev) init_completion(&adc->conv_completion); iio_dev->name = dev_name(&pdev->dev); - iio_dev->dev.parent = &pdev->dev; iio_dev->info = &rn5t618_adc_iio_info; iio_dev->modes = INDIO_DIRECT_MODE; iio_dev->channels = rn5t618_adc_iio_channels; @@ -240,6 +239,10 @@ static int rn5t618_adc_probe(struct platform_device *pdev) return ret; } + ret = devm_iio_map_array_register(adc->dev, iio_dev, rn5t618_maps); + if (ret < 0) + return ret; + return devm_iio_device_register(adc->dev, iio_dev); } |