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Subject[PATCH v3 1/2] iio: adc: driver for ti adc081s/adc101s/adc121s
Date
    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>

---
Changes in v2:
- Fix typo error
- Keep Copyright comment
Changes in v3:
- Split patch in two patches.
- Second patch is license description
---
drivers/iio/adc/ad7476.c | 23 ++++++++++++++++++++++-
1 file changed, 22 insertions(+), 1 deletion(-)

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);
--
2.7.4
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