Commit 4d2b6d8c authored by Milan Stevanovic's avatar Milan Stevanovic Committed by Jonathan Cameron
Browse files

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: default avatarMilan Stevanovic <milan.o.stevanovic@gmail.com>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent ea9170e5

drivers/iio/adc/ad7476.c

+22 −1
Original line number Diff line number Diff line 
/*

 * 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);