The mcp3421 is the single channel variant of the mcp342x family. Support
is straight forward, only the channels array has to be added for this
chip.
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
drivers/iio/adc/mcp3422.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/iio/adc/mcp3422.c b/drivers/iio/adc/mcp3422.c
index 3555122..6eca7ae 100644
--- a/drivers/iio/adc/mcp3422.c
+++ b/drivers/iio/adc/mcp3422.c
@@ -305,6 +305,10 @@ static const struct attribute_group mcp3422_attribute_group = {
.attrs = mcp3422_attributes,
};
+static const struct iio_chan_spec mcp3421_channels[] = {
+ MCP3422_CHAN(0),
+};
+
static const struct iio_chan_spec mcp3422_channels[] = {
MCP3422_CHAN(0),
MCP3422_CHAN(1),
@@ -352,6 +356,10 @@ static int mcp3422_probe(struct i2c_client *client,
indio_dev->info = &mcp3422_info;
switch (adc->id) {
+ case 1:
+ indio_dev->channels = mcp3421_channels;
+ indio_dev->num_channels = ARRAY_SIZE(mcp3421_channels);
+ break;
case 2:
case 3:
case 6:
@@ -383,6 +391,7 @@ static int mcp3422_probe(struct i2c_client *client,
}
static const struct i2c_device_id mcp3422_id[] = {
+ { "mcp3421", 1 },
{ "mcp3422", 2 },
{ "mcp3423", 3 },
{ "mcp3424", 4 },
--
2.6.2
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