iio: st_sensors: Create extended attr macro
Extend ST_SENSORS_LSM_CHANNELS() to a version that will accept extended
attributes named ST_SENSORS_LSM_CHANNELS_EXT() and wrap the former as a
specialized version of the former.
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Denis Ciocca <denis.ciocca@st.com>
Cc: Daniel Drake <drake@endlessm.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210518230722.522446-1-linus.walleij@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
index 0b9aeb4..8e0d76b4 100644
--- a/include/linux/iio/common/st_sensors.h
+++ b/include/linux/iio/common/st_sensors.h
@@ -48,8 +48,8 @@
#define ST_SENSORS_MAX_NAME 17
#define ST_SENSORS_MAX_4WAI 8
-#define ST_SENSORS_LSM_CHANNELS(device_type, mask, index, mod, \
- ch2, s, endian, rbits, sbits, addr) \
+#define ST_SENSORS_LSM_CHANNELS_EXT(device_type, mask, index, mod, \
+ ch2, s, endian, rbits, sbits, addr, ext) \
{ \
.type = device_type, \
.modified = mod, \
@@ -65,8 +65,14 @@
.storagebits = sbits, \
.endianness = endian, \
}, \
+ .ext_info = ext, \
}
+#define ST_SENSORS_LSM_CHANNELS(device_type, mask, index, mod, \
+ ch2, s, endian, rbits, sbits, addr) \
+ ST_SENSORS_LSM_CHANNELS_EXT(device_type, mask, index, mod, \
+ ch2, s, endian, rbits, sbits, addr, NULL)
+
#define ST_SENSORS_DEV_ATTR_SAMP_FREQ_AVAIL() \
IIO_DEV_ATTR_SAMP_FREQ_AVAIL( \
st_sensors_sysfs_sampling_frequency_avail)