diff options
| author | Lars-Peter Clausen | 2013-06-14 17:58:00 +0200 |
|---|---|---|
| committer | Jonathan Cameron | 2013-06-14 22:55:17 +0200 |
| commit | 1df9d1d4a1cb666042c3217aef6a6dc38eed1de0 (patch) | |
| tree | 4ba8780c196acc46f1612553865d4fafa84865b5 /drivers/staging/iio/adc/ad7291.h | |
| parent | staging:iio:ad7291: Use sign_extend32 instead of open-coding it (diff) | |
| download | kernel-qcow2-linux-1df9d1d4a1cb666042c3217aef6a6dc38eed1de0.tar.gz kernel-qcow2-linux-1df9d1d4a1cb666042c3217aef6a6dc38eed1de0.tar.xz kernel-qcow2-linux-1df9d1d4a1cb666042c3217aef6a6dc38eed1de0.zip | |
staging:iio:ad7291: Rework regulator handling
Add platform_data for the driver which allows to specify whether an external
reference voltage is used or not. It is not possible to use the return value of
regulator_get() for this since the regulator framework is able to return a dummy
regulator in case no regulator has been specified. In this case the driver will
always get a valid regulator, no matter if it has been specified or not. Also
make the regulator non-optional if platform_data states that an external
reference voltage should be used.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/staging/iio/adc/ad7291.h')
| -rw-r--r-- | drivers/staging/iio/adc/ad7291.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/staging/iio/adc/ad7291.h b/drivers/staging/iio/adc/ad7291.h new file mode 100644 index 000000000000..bbd89fa51188 --- /dev/null +++ b/drivers/staging/iio/adc/ad7291.h @@ -0,0 +1,12 @@ +#ifndef __IIO_AD7291_H__ +#define __IIO_AD7291_H__ + +/** + * struct ad7291_platform_data - AD7291 platform data + * @use_external_ref: Whether to use an external or internal reference voltage + */ +struct ad7291_platform_data { + bool use_external_ref; +}; + +#endif |