diff options
| author | Dragos Bogdan <dragos.bogdan@analog.com> | 2015-11-18 14:16:34 (GMT) |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2015-11-21 17:52:42 (GMT) |
| commit | 8ffedc1b128af336ab650cef4883015d1c49269d (patch) | |
| tree | ec6fc53ad05a473ee95f7ad6ea4ed9b2b6f23696 /drivers/staging/iio | |
| parent | cef7e12585e61e2a03aea1c99331865213982f3a (diff) | |
| download | linux-8ffedc1b128af336ab650cef4883015d1c49269d.tar.xz | |
staging:iio:ad7780: Remove the ad7780_platform_data
The ad7780_platform_data contains just the reference voltage information.
Since the preferred way of specifying this information is using the Linux
regulator framework and the ad7780 platform_data is not used by other
users, it can be completely removed.
Signed-off-by: Dragos Bogdan <dragos.bogdan@analog.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/staging/iio')
| -rw-r--r-- | drivers/staging/iio/adc/ad7780.c | 9 | ||||
| -rw-r--r-- | drivers/staging/iio/adc/ad7780.h | 29 |
2 files changed, 2 insertions, 36 deletions
diff --git a/drivers/staging/iio/adc/ad7780.c b/drivers/staging/iio/adc/ad7780.c index 98b5fc4..498e86b 100644 --- a/drivers/staging/iio/adc/ad7780.c +++ b/drivers/staging/iio/adc/ad7780.c @@ -22,8 +22,6 @@ #include <linux/iio/sysfs.h> #include <linux/iio/adc/ad_sigma_delta.h> -#include "ad7780.h" - #define AD7780_RDY BIT(7) #define AD7780_FILTER BIT(6) #define AD7780_ERR BIT(5) @@ -162,7 +160,6 @@ static const struct iio_info ad7780_info = { static int ad7780_probe(struct spi_device *spi) { - struct ad7780_platform_data *pdata = spi->dev.platform_data; struct ad7780_state *st; struct iio_dev *indio_dev; int ret, voltage_uv = 0; @@ -188,12 +185,10 @@ static int ad7780_probe(struct spi_device *spi) st->chip_info = &ad7780_chip_info_tbl[spi_get_device_id(spi)->driver_data]; - if (pdata && pdata->vref_mv) - st->int_vref_mv = pdata->vref_mv; - else if (voltage_uv) + if (voltage_uv) st->int_vref_mv = voltage_uv / 1000; else - dev_warn(&spi->dev, "reference voltage unspecified\n"); + dev_warn(&spi->dev, "Reference voltage unspecified\n"); spi_set_drvdata(spi, indio_dev); diff --git a/drivers/staging/iio/adc/ad7780.h b/drivers/staging/iio/adc/ad7780.h deleted file mode 100644 index 46f61c9..0000000 --- a/drivers/staging/iio/adc/ad7780.h +++ /dev/null @@ -1,29 +0,0 @@ -/* - * AD7780/AD7781 SPI ADC driver - * - * Copyright 2011 Analog Devices Inc. - * - * Licensed under the GPL-2. - */ -#ifndef IIO_ADC_AD7780_H_ -#define IIO_ADC_AD7780_H_ - -/* - * TODO: struct ad7780_platform_data needs to go into include/linux/iio - */ - -/* NOTE: - * The AD7780 doesn't feature a dedicated SPI chip select, in addition it - * features a dual use data out ready DOUT/RDY output. - * In order to avoid contentions on the SPI bus, it's therefore necessary - * to use spi bus locking combined with a dedicated GPIO to control the - * power down reset signal of the AD7780. - * - * The DOUT/RDY output must also be wired to an interrupt capable GPIO. - */ - -struct ad7780_platform_data { - u16 vref_mv; -}; - -#endif /* IIO_ADC_AD7780_H_ */ |