Add missing kernel docs to the ad2s1200 driver state.
Signed-off-by: David Veenstra <davidjulianveenstra@xxxxxxxxx>
---
Changes in v4:
- Simplified explanation of lock.
drivers/staging/iio/resolver/ad2s1200.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/staging/iio/resolver/ad2s1200.c b/drivers/staging/iio/resolver/ad2s1200.c
index 9bdcf0c86217..068aa86e9c11 100644
--- a/drivers/staging/iio/resolver/ad2s1200.c
+++ b/drivers/staging/iio/resolver/ad2s1200.c
@@ -32,6 +32,14 @@
/* clock period in nano second */
#define AD2S1200_TSCLK (1000000000 / AD2S1200_HZ)
+/**
+ * struct ad2s1200_state - driver instance specific data.
+ * @lock: protects both the GPIO pins and the rx buffer.
+ * @sdev: spi device.
+ * @sample: GPIO pin SAMPLE.
+ * @rdvel: GPIO pin RDVEL.
+ * @rx: buffer for spi transfers.
+ */
struct ad2s1200_state {
struct mutex lock;
struct spi_device *sdev;
--
2.17.0
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