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iio: dac: mcp4922: add support to mcp4921

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Add support to mcp4921 which has only one output channel.

Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20220624095619.1415614-1-kory.maincent@bootlin.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Kory Maincent 2022-06-24 11:56:17 +02:00 committed by Jonathan Cameron
parent 53bee458b8
commit 1c8dbb5be5
1 changed files with 9 additions and 2 deletions
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11
drivers/iio/dac/mcp4922.c
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@ -17,10 +17,12 @@
#include <linux/bitops.h>
#define MCP4922_NUM_CHANNELS 2
#define MCP4921_NUM_CHANNELS 1
enum mcp4922_supported_device_ids {
ID_MCP4902,
ID_MCP4912,
ID_MCP4921,
ID_MCP4922,
};
@ -105,9 +107,10 @@ static int mcp4922_write_raw(struct iio_dev *indio_dev,
}
}
static const struct iio_chan_spec mcp4922_channels[3][MCP4922_NUM_CHANNELS] = {
static const struct iio_chan_spec mcp4922_channels[4][MCP4922_NUM_CHANNELS] = {
[ID_MCP4902] = { MCP4922_CHAN(0, 8), MCP4922_CHAN(1, 8) },
[ID_MCP4912] = { MCP4922_CHAN(0, 10), MCP4922_CHAN(1, 10) },
[ID_MCP4921] = { MCP4922_CHAN(0, 12), {} },
[ID_MCP4922] = { MCP4922_CHAN(0, 12), MCP4922_CHAN(1, 12) },
};
@ -154,7 +157,10 @@ static int mcp4922_probe(struct spi_device *spi)
indio_dev->info = &mcp4922_info;
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->channels = mcp4922_channels[id->driver_data];
indio_dev->num_channels = MCP4922_NUM_CHANNELS;
if (id->driver_data == ID_MCP4921)
indio_dev->num_channels = MCP4921_NUM_CHANNELS;
else
indio_dev->num_channels = MCP4922_NUM_CHANNELS;
indio_dev->name = id->name;
ret = iio_device_register(indio_dev);
@ -185,6 +191,7 @@ static void mcp4922_remove(struct spi_device *spi)
static const struct spi_device_id mcp4922_id[] = {
{"mcp4902", ID_MCP4902},
{"mcp4912", ID_MCP4912},
{"mcp4921", ID_MCP4921},
{"mcp4922", ID_MCP4922},
{}
};