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iio: adc: ad7606: Move spi dependent features to spi file

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Because software mode and register access are only available in spi, they
were moved in spi file and are accessbile via bops structure.
The write_os/scale will be overwritten by sw_mode_config function.
This patch was made in order to support devices in software mode without
making the driver dependent to spi and increase the abstraction of the
core.

Signed-off-by: Beniamin Bia <beniamin.bia@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Beniamin Bia 2019-07-18 09:27:31 +03:00 committed by Jonathan Cameron
parent 7677f73158
commit a0c648c07c
2 changed files with 5 additions and 27 deletions
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20
drivers/iio/adc/ad7606.c
View File

@ -597,7 +597,7 @@ int ad7606_probe(struct device *dev, int irq, void __iomem *base_address,
st->write_scale = ad7606_write_scale_hw;
st->write_os = ad7606_write_os_hw;
if (st->chip_info->sw_mode_config)
if (st->bops->sw_mode_config)
st->sw_mode_en = device_property_present(st->dev,
"adi,sw-mode");
@ -606,23 +606,7 @@ int ad7606_probe(struct device *dev, int irq, void __iomem *base_address,
memset32(st->range, 2, ARRAY_SIZE(st->range));
indio_dev->info = &ad7606_info_os_and_range;
/*
* In software mode, the range gpio has no longer its function.
* Instead, the scale can be configured individually for each
* channel from the range registers.
*/
if (st->chip_info->write_scale_sw)
st->write_scale = st->chip_info->write_scale_sw;
/*
* In software mode, the oversampling is no longer configured
* with GPIO pins. Instead, the oversampling can be configured
* in configuratiion register.
*/
if (st->chip_info->write_os_sw)
st->write_os = st->chip_info->write_os_sw;
ret = st->chip_info->sw_mode_config(indio_dev);
ret = st->bops->sw_mode_config(indio_dev);
if (ret < 0)
return ret;
}

12
drivers/iio/adc/ad7606.h
View File

@ -39,12 +39,6 @@
* oversampling ratios.
* @oversampling_num number of elements stored in oversampling_avail array
* @os_req_reset some devices require a reset to update oversampling
* @write_scale_sw pointer to the function which writes the scale via spi
in software mode
* @write_os_sw pointer to the function which writes the os via spi
in software mode
* @sw_mode_config: pointer to a function which configured the device
* for software mode
*/
struct ad7606_chip_info {
const struct iio_chan_spec *channels;
@ -52,9 +46,6 @@ struct ad7606_chip_info {
const unsigned int *oversampling_avail;
unsigned int oversampling_num;
bool os_req_reset;
int (*write_scale_sw)(struct iio_dev *indio_dev, int ch, int val);
int (*write_os_sw)(struct iio_dev *indio_dev, int val);
int (*sw_mode_config)(struct iio_dev *indio_dev);
};
/**
@ -124,10 +115,13 @@ struct ad7606_state {
/**
* struct ad7606_bus_ops - driver bus operations
* @read_block function pointer for reading blocks of data
* @sw_mode_config: pointer to a function which configured the device
* for software mode
*/
struct ad7606_bus_ops {
/* more methods added in future? */
int (*read_block)(struct device *dev, int num, void *data);
int (*sw_mode_config)(struct iio_dev *indio_dev);
};
int ad7606_probe(struct device *dev, int irq, void __iomem *base_address,