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staging:iio:ad7780: add chip ID values and mask

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The ad7780 supports both the ad778x and ad717x families. Each chip has
a corresponding ID. This patch provides a mask for extracting ID values
from the status bits and also macros for the correct values for the
ad7170, ad7171, ad7780 and ad7781.

Signed-off-by: Renato Lui Geh <renatogeh@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Renato Lui Geh 2019-03-15 23:14:27 -03:00 committed by Jonathan Cameron
parent 33e1f90204
commit 4812a14a78
1 changed files with 6 additions and 0 deletions
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6
drivers/staging/iio/adc/ad7780.c
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@ -30,6 +30,12 @@
#define AD7780_ID0 BIT(3)
#define AD7780_GAIN BIT(2)
#define AD7170_ID 0
#define AD7171_ID 1
#define AD7780_ID 1
#define AD7781_ID 0
#define AD7780_ID_MASK (AD7780_ID0 | AD7780_ID1)
#define AD7780_PATTERN_GOOD 1
#define AD7780_PATTERN_MASK GENMASK(1, 0)