Add iio map to allow power driver to read out values as a consumer.
This approach does not block later addition of devicetree support
which would be helpful if there is an in-kernel consumer for AIN0/1.
Signed-off-by: Andreas Kemnade <andreas@xxxxxxxxxxxx>
Acked-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
---
Changes in v3:
- none
Changes in v2:
- provide consumer mapping via iio_map instead of devicetree
drivers/iio/adc/rn5t618-adc.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/drivers/iio/adc/rn5t618-adc.c b/drivers/iio/adc/rn5t618-adc.c
index 7010c4276947..c56fccb2c8e1 100644
--- a/drivers/iio/adc/rn5t618-adc.c
+++ b/drivers/iio/adc/rn5t618-adc.c
@@ -16,6 +16,8 @@
#include <linux/completion.h>
#include <linux/regmap.h>
#include <linux/iio/iio.h>
+#include <linux/iio/driver.h>
+#include <linux/iio/machine.h>
#include <linux/slab.h>
#define RN5T618_ADC_CONVERSION_TIMEOUT (msecs_to_jiffies(500))
@@ -189,6 +191,19 @@ static const struct iio_chan_spec rn5t618_adc_iio_channels[] = {
RN5T618_ADC_CHANNEL(AIN0, IIO_VOLTAGE, "AIN0")
};
+static struct iio_map rn5t618_maps[] = {
+ IIO_MAP("VADP", "rn5t618-power", "vadp"),
+ IIO_MAP("VUSB", "rn5t618-power", "vusb"),
+ { /* sentinel */ }
+};
+
+static void unregister_map(void *data)
+{
+ struct iio_dev *iio_dev = (struct iio_dev *) data;
+
+ iio_map_array_unregister(iio_dev);
+}
+
static int rn5t618_adc_probe(struct platform_device *pdev)
{
int ret;
@@ -239,6 +254,14 @@ static int rn5t618_adc_probe(struct platform_device *pdev)
return ret;
}
+ ret = iio_map_array_register(iio_dev, rn5t618_maps);
+ if (ret < 0)
+ return ret;
+
+ ret = devm_add_action_or_reset(adc->dev, unregister_map, iio_dev);
+ if (ret < 0)
+ return ret;
+
return devm_iio_device_register(adc->dev, iio_dev);
}
--
2.30.2
