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authorMilan Stevanovic <milan.o.stevanovic@gmail.com>2018-01-14 21:32:39 +0100
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2018-01-30 18:33:27 +0000
commit4d2b6d8c0ae831ba91608f605ce25171bd2d4a4b (patch)
tree92d620d08346a7f65b49a5f7f2119847b4b41d9a /drivers/iio/adc
parentea9170e57689082fabc5787521774533bbd4a5a9 (diff)
downloadop-kernel-dev-4d2b6d8c0ae831ba91608f605ce25171bd2d4a4b.zip
op-kernel-dev-4d2b6d8c0ae831ba91608f605ce25171bd2d4a4b.tar.gz
iio: adc: driver for ti adc081s/adc101s/adc121s
Add Linux device driver for TI single-channel CMOS 8/10/12-bit analog-to-digital converter with a high-speed serial interface. Signed-off-by: Milan Stevanovic <milan.o.stevanovic@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/adc')
-rw-r--r--drivers/iio/adc/ad7476.c23
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/iio/adc/ad7476.c b/drivers/iio/adc/ad7476.c
index b7706bf..0ea0f90 100644
--- a/drivers/iio/adc/ad7476.c
+++ b/drivers/iio/adc/ad7476.c
@@ -1,5 +1,6 @@
/*
- * AD7466/7/8 AD7476/5/7/8 (A) SPI ADC driver
+ * Analog Devices AD7466/7/8 AD7476/5/7/8 (A) SPI ADC driver
+ * TI ADC081S/ADC101S/ADC121S 8/10/12-bit SPI ADC driver
*
* Copyright 2010 Analog Devices Inc.
*
@@ -56,6 +57,9 @@ enum ad7476_supported_device_ids {
ID_AD7468,
ID_AD7495,
ID_AD7940,
+ ID_ADC081S,
+ ID_ADC101S,
+ ID_ADC121S,
};
static irqreturn_t ad7476_trigger_handler(int irq, void *p)
@@ -147,6 +151,8 @@ static int ad7476_read_raw(struct iio_dev *indio_dev,
}, \
}
+#define ADC081S_CHAN(bits) _AD7476_CHAN((bits), 12 - (bits), \
+ BIT(IIO_CHAN_INFO_RAW))
#define AD7476_CHAN(bits) _AD7476_CHAN((bits), 13 - (bits), \
BIT(IIO_CHAN_INFO_RAW))
#define AD7940_CHAN(bits) _AD7476_CHAN((bits), 15 - (bits), \
@@ -192,6 +198,18 @@ static const struct ad7476_chip_info ad7476_chip_info_tbl[] = {
.channel[0] = AD7940_CHAN(14),
.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
},
+ [ID_ADC081S] = {
+ .channel[0] = ADC081S_CHAN(8),
+ .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
+ },
+ [ID_ADC101S] = {
+ .channel[0] = ADC081S_CHAN(10),
+ .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
+ },
+ [ID_ADC121S] = {
+ .channel[0] = ADC081S_CHAN(12),
+ .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
+ },
};
static const struct iio_info ad7476_info = {
@@ -294,6 +312,9 @@ static const struct spi_device_id ad7476_id[] = {
{"ad7910", ID_AD7467},
{"ad7920", ID_AD7466},
{"ad7940", ID_AD7940},
+ {"adc081s", ID_ADC081S},
+ {"adc101s", ID_ADC101S},
+ {"adc121s", ID_ADC121S},
{}
};
MODULE_DEVICE_TABLE(spi, ad7476_id);
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