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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2019-12-09 21:32:47 +0100 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2019-12-15 12:15:19 +0000 |
| commit | 69548b7c2c4f1ab9a135f2050d9683c7691ef701 (patch) | |
| tree | c83de32264295519fc11134aeebd8e81b1ca350c /drivers/iio/adc/ltc2497.h | |
| parent | 59c3662b8f081832abaadfbc8a4bfb63c526aea8 (diff) | |
| download | linux-next-69548b7c2c4f1ab9a135f2050d9683c7691ef701.tar.gz | |
iio: adc: ltc2497: split protocol independent part in a separate module
This allows to share most of this driver for the ltc2496 driver added in
the next commit that is an SPI variant of the ltc2497. Initially I named
the generic part ltc249x, but wild card names are frowned upon, so the
generic part is called ltc2497-core even though it's not obvious that
this is then to be reused for the ltc2496 driver.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/adc/ltc2497.h')
| -rw-r--r-- | drivers/iio/adc/ltc2497.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/iio/adc/ltc2497.h b/drivers/iio/adc/ltc2497.h new file mode 100644 index 000000000000..d0b42dd6b8ad --- /dev/null +++ b/drivers/iio/adc/ltc2497.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#define LTC2497_ENABLE 0xA0 +#define LTC2497_CONFIG_DEFAULT LTC2497_ENABLE +#define LTC2497_CONVERSION_TIME_MS 150ULL + +struct ltc2497core_driverdata { + struct regulator *ref; + ktime_t time_prev; + u8 addr_prev; + int (*result_and_measure)(struct ltc2497core_driverdata *ddata, + u8 address, int *val); +}; + +int ltc2497core_probe(struct device *dev, struct iio_dev *indio_dev); +void ltc2497core_remove(struct iio_dev *indio_dev); + +MODULE_IMPORT_NS(LTC2497); |