diff options
| -rw-r--r-- | drivers/iio/adc/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/iio/adc/ti-adc128s052.c | 40 |
2 files changed, 37 insertions, 5 deletions
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig index 636469392945..b8e097f21a59 100644 --- a/drivers/iio/adc/Kconfig +++ b/drivers/iio/adc/Kconfig @@ -1493,7 +1493,7 @@ config TI_ADC128S052 depends on SPI help If you say yes here you get support for Texas Instruments ADC128S052, - ADC122S021 and ADC124S021 chips. + ADC122S021, ADC124S021 and ROHM Semiconductor BD79104 chips. This driver can also be built as a module. If so, the module will be called ti-adc128s052. diff --git a/drivers/iio/adc/ti-adc128s052.c b/drivers/iio/adc/ti-adc128s052.c index fa0099356be7..d4721ad90f2c 100644 --- a/drivers/iio/adc/ti-adc128s052.c +++ b/drivers/iio/adc/ti-adc128s052.c @@ -21,6 +21,9 @@ struct adc128_configuration { const struct iio_chan_spec *channels; u8 num_channels; + const char *refname; + int num_other_regulators; + const char * const (*other_regulators)[]; }; struct adc128 { @@ -124,10 +127,28 @@ static const struct iio_chan_spec adc124s021_channels[] = { ADC128_VOLTAGE_CHANNEL(3), }; +static const char * const bd79104_regulators[] = { "iovdd" }; + static const struct adc128_configuration adc128_config[] = { - { adc128s052_channels, ARRAY_SIZE(adc128s052_channels) }, - { adc122s021_channels, ARRAY_SIZE(adc122s021_channels) }, - { adc124s021_channels, ARRAY_SIZE(adc124s021_channels) }, + { + .channels = adc128s052_channels, + .num_channels = ARRAY_SIZE(adc128s052_channels), + .refname = "vref", + }, { + .channels = adc122s021_channels, + .num_channels = ARRAY_SIZE(adc122s021_channels), + .refname = "vref", + }, { + .channels = adc124s021_channels, + .num_channels = ARRAY_SIZE(adc124s021_channels), + .refname = "vref", + }, { + .channels = adc128s052_channels, + .num_channels = ARRAY_SIZE(adc128s052_channels), + .refname = "vdd", + .other_regulators = &bd79104_regulators, + .num_other_regulators = 1, + }, }; static const struct iio_info adc128_info = { @@ -162,7 +183,7 @@ static int adc128_probe(struct spi_device *spi) indio_dev->channels = config->channels; indio_dev->num_channels = config->num_channels; - adc->reg = devm_regulator_get(&spi->dev, "vref"); + adc->reg = devm_regulator_get(&spi->dev, config->refname); if (IS_ERR(adc->reg)) return PTR_ERR(adc->reg); @@ -174,6 +195,15 @@ static int adc128_probe(struct spi_device *spi) if (ret) return ret; + if (config->num_other_regulators) { + ret = devm_regulator_bulk_get_enable(&spi->dev, + config->num_other_regulators, + *config->other_regulators); + if (ret) + return dev_err_probe(&spi->dev, ret, + "Failed to enable regulators\n"); + } + ret = devm_mutex_init(&spi->dev, &adc->lock); if (ret) return ret; @@ -189,6 +219,7 @@ static const struct of_device_id adc128_of_match[] = { { .compatible = "ti,adc124s021", .data = &adc128_config[2] }, { .compatible = "ti,adc124s051", .data = &adc128_config[2] }, { .compatible = "ti,adc124s101", .data = &adc128_config[2] }, + { .compatible = "rohm,bd79104", .data = &adc128_config[3] }, { } }; MODULE_DEVICE_TABLE(of, adc128_of_match); @@ -201,6 +232,7 @@ static const struct spi_device_id adc128_id[] = { { "adc124s021", (kernel_ulong_t)&adc128_config[2] }, { "adc124s051", (kernel_ulong_t)&adc128_config[2] }, { "adc124s101", (kernel_ulong_t)&adc128_config[2] }, + { "bd79104", (kernel_ulong_t)&adc128_config[3] }, { } }; MODULE_DEVICE_TABLE(spi, adc128_id); |