hwmon: (iio_hwmon) Add support for humidity sensors

The iio subsystem supports humidity sensors, so it makes sense
to support it in the iio-hwmon bridge as well.

Cc: Jonathan Cameron <jic23@kernel.org>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/iio_hwmon.c b/drivers/hwmon/iio_hwmon.c
index 14c82daab01975851da8e1255cf7b3430df5383c..980175628563a0987531a05afda3312bb20b7511 100644 (file)
--- a/drivers/hwmon/iio_hwmon.c
+++ b/drivers/hwmon/iio_hwmon.c
@@ -63,7 +63,7 @@ static int iio_hwmon_probe(struct platform_device *pdev)
        struct iio_hwmon_state *st;
        struct sensor_device_attribute *a;
        int ret, i;
-       int in_i = 1, temp_i = 1, curr_i = 1;
+       int in_i = 1, temp_i = 1, curr_i = 1, humidity_i = 1;
        enum iio_chan_type type;
        struct iio_channel *channels;
        const char *name = "iio_hwmon";
@@ -123,6 +123,11 @@ static int iio_hwmon_probe(struct platform_device *pdev)
                                                          "curr%d_input",
                                                          curr_i++);
                        break;
+               case IIO_HUMIDITYRELATIVE:
+                       a->dev_attr.attr.name = kasprintf(GFP_KERNEL,
+                                                         "humidity%d_input",
+                                                         humidity_i++);
+                       break;
                default:
                        ret = -EINVAL;
                        goto error_release_channels;