[PATCH v5 06/11] staging:iio:ad7780: add chip ID values and mask

Renato Lui Geh
2019-03-16T02:14:35Z

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>
---
Changes in v5:
- Put AD7780_ID{0,1} back

drivers/staging/iio/adc/ad7780.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/staging/iio/adc/ad7780.c b/drivers/staging/iio/adc/ad7780.c
index 94cb60c327d0..977b381c1260 100644
--- a/drivers/staging/iio/adc/ad7780.c
+++ b/drivers/staging/iio/adc/ad7780.c
@@ -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)
--
2.21.0