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Subject[RFC PATCH 1/3] iio: add hwfifo attributes helpers
Date
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
---
drivers/iio/accel/bmc150-accel.c | 11 ++++-------
include/linux/iio/sysfs.h | 12 ++++++++++++
2 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/drivers/iio/accel/bmc150-accel.c b/drivers/iio/accel/bmc150-accel.c
index 73e8773..b4ca361 100644
--- a/drivers/iio/accel/bmc150-accel.c
+++ b/drivers/iio/accel/bmc150-accel.c
@@ -870,13 +870,10 @@ static ssize_t bmc150_accel_get_fifo_state(struct device *dev,
return sprintf(buf, "%d\n", state);
}

-static IIO_CONST_ATTR(hwfifo_watermark_min, "1");
-static IIO_CONST_ATTR(hwfifo_watermark_max,
- __stringify(BMC150_ACCEL_FIFO_LENGTH));
-static IIO_DEVICE_ATTR(hwfifo_enabled, S_IRUGO,
- bmc150_accel_get_fifo_state, NULL, 0);
-static IIO_DEVICE_ATTR(hwfifo_watermark, S_IRUGO,
- bmc150_accel_get_fifo_watermark, NULL, 0);
+static IIO_CONST_ATTR_HWFIFO_WATERMARK_MIN(1);
+static IIO_CONST_ATTR_HWFIFO_WATERMARK_MAX(BMC150_ACCEL_FIFO_LENGTH);
+static IIO_DEV_ATTR_HWFIFO_ENABLED(bmc150_accel_get_fifo_state);
+static IIO_DEV_ATTR_HWFIFO_WATERMARK(bmc150_accel_get_fifo_watermark);

static const struct attribute *bmc150_accel_fifo_attributes[] = {
&iio_const_attr_hwfifo_watermark_min.dev_attr.attr,
diff --git a/include/linux/iio/sysfs.h b/include/linux/iio/sysfs.h
index 8a1d186..8822bab 100644
--- a/include/linux/iio/sysfs.h
+++ b/include/linux/iio/sysfs.h
@@ -124,4 +124,16 @@ struct iio_const_attr {
#define IIO_CONST_ATTR_TEMP_SCALE(_string) \
IIO_CONST_ATTR(in_temp_scale, _string)

+#define IIO_CONST_ATTR_HWFIFO_WATERMARK_MIN(_min) \
+ IIO_CONST_ATTR(hwfifo_watermark_min, __stringify(_min))
+
+#define IIO_CONST_ATTR_HWFIFO_WATERMARK_MAX(_max) \
+ IIO_CONST_ATTR(hwfifo_watermark_max, __stringify(_max))
+
+#define IIO_DEV_ATTR_HWFIFO_ENABLED(_hwfifo_get_state) \
+ IIO_DEVICE_ATTR(hwfifo_enabled, S_IRUGO, _hwfifo_get_state, NULL, 0)
+
+#define IIO_DEV_ATTR_HWFIFO_WATERMARK(_hwfifo_get_wm) \
+ IIO_DEVICE_ATTR(hwfifo_watermark, S_IRUGO, _hwfifo_get_wm, NULL, 0)
+
#endif /* _INDUSTRIAL_IO_SYSFS_H_ */
--
1.9.1


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