Commit f66d625c authored by Julien Stephan's avatar Julien Stephan Committed by Jonathan Cameron
Browse files

iio: adc: ad7380: add adaq4381-4 support 



adaq4381-4 is the 14 bits version of adaq4380-1 chip. Add support for
it.

Signed-off-by: default avatarJulien Stephan <jstephan@baylibre.com>
Reviewed-by: default avatarDavid Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250226-ad7380-add-adaq4381-4-support-v1-1-f350ab872d37@baylibre.com


Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 1e30116d

drivers/iio/adc/ad7380.c

+17 −0
Original line number Diff line number Diff line
@@ -15,6 +15,7 @@ 
 * ad7386/7/8-4 : https://www.analog.com/media/en/technical-documentation/data-sheets/ad7386-4-7387-4-7388-4.pdf

 * adaq4370-4 : https://www.analog.com/media/en/technical-documentation/data-sheets/adaq4370-4.pdf

 * adaq4380-4 : https://www.analog.com/media/en/technical-documentation/data-sheets/adaq4380-4.pdf

 * adaq4381-4 : https://www.analog.com/media/en/technical-documentation/data-sheets/adaq4381-4.pdf

 */



#include <linux/align.h>
@@ -287,6 +288,7 @@ DEFINE_AD7380_2_CHANNEL(ad7381_channels, 14, 1, s); 
DEFINE_AD7380_4_CHANNEL(ad7380_4_channels, 16, 1, s);

DEFINE_AD7380_4_CHANNEL(ad7381_4_channels, 14, 1, s);

DEFINE_ADAQ4380_4_CHANNEL(adaq4380_4_channels, 16, 1, s);

DEFINE_ADAQ4380_4_CHANNEL(adaq4381_4_channels, 14, 1, s);

/* pseudo differential */

DEFINE_AD7380_2_CHANNEL(ad7383_channels, 16, 0, s);

DEFINE_AD7380_2_CHANNEL(ad7384_channels, 14, 0, s);
@@ -599,6 +601,19 @@ static const struct ad7380_chip_info adaq4380_4_chip_info = { 
	.timing_specs = &ad7380_4_timing,

};



static const struct ad7380_chip_info adaq4381_4_chip_info = {

	.name = "adaq4381-4",

	.channels = adaq4381_4_channels,

	.num_channels = ARRAY_SIZE(adaq4381_4_channels),

	.num_simult_channels = 4,

	.supplies = adaq4380_supplies,

	.num_supplies = ARRAY_SIZE(adaq4380_supplies),

	.adaq_internal_ref_only = true,

	.has_hardware_gain = true,

	.available_scan_masks = ad7380_4_channel_scan_masks,

	.timing_specs = &ad7380_4_timing,

};



struct ad7380_state {

	const struct ad7380_chip_info *chip_info;

	struct spi_device *spi;
@@ -1582,6 +1597,7 @@ static const struct of_device_id ad7380_of_match_table[] = { 
	{ .compatible = "adi,ad7388-4", .data = &ad7388_4_chip_info },

	{ .compatible = "adi,adaq4370-4", .data = &adaq4370_4_chip_info },

	{ .compatible = "adi,adaq4380-4", .data = &adaq4380_4_chip_info },

	{ .compatible = "adi,adaq4381-4", .data = &adaq4381_4_chip_info },

	{ }

};
@@ -1602,6 +1618,7 @@ static const struct spi_device_id ad7380_id_table[] = { 
	{ "ad7388-4", (kernel_ulong_t)&ad7388_4_chip_info },

	{ "adaq4370-4", (kernel_ulong_t)&adaq4370_4_chip_info },

	{ "adaq4380-4", (kernel_ulong_t)&adaq4380_4_chip_info },

	{ "adaq4381-4", (kernel_ulong_t)&adaq4381_4_chip_info },

	{ }

};

MODULE_DEVICE_TABLE(spi, ad7380_id_table);