iio: dac: ad5791: Complete 'struct ad5791_chip_info' documentation

... and remove seemingly pointless comment.

Fixes the following W=1 kernel build warning(s):

 drivers/iio/dac/ad5791.c:97: warning: Function parameter or member 'ctrl' not described in 'ad5791_state'
 drivers/iio/dac/ad5791.c:97: warning: Function parameter or member 'pwr_down_mode' not described in 'ad5791_state'
 drivers/iio/dac/ad5791.c:97: warning: Function parameter or member 'pwr_down' not described in 'ad5791_state'
 drivers/iio/dac/ad5791.c:97: warning: Function parameter or member 'data' not described in 'ad5791_state'
 drivers/iio/dac/ad5791.c:103: warning: cannot understand function prototype: 'enum ad5791_supported_device_ids '

Cc: Michael Hennerich <Michael.Hennerich@analog.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/dac/ad5791.c b/drivers/iio/dac/ad5791.c
index 60aa16128a8f6b52e9e51a4ee30a07882908ed4d..e3ffa4b9f84cc29018ba5b6a39323e1f5f8fb764 100644 (file)
--- a/drivers/iio/dac/ad5791.c
+++ b/drivers/iio/dac/ad5791.c
@@ -76,9 +76,11 @@ struct ad5791_chip_info {
  * @chip_info:         chip model specific constants
  * @vref_mv:           actual reference voltage used
  * @vref_neg_mv:       voltage of the negative supply
- * @pwr_down_mode      current power down mode
+ * @ctrl:              control regster cache
+ * @pwr_down_mode:     current power down mode
+ * @pwr_down:          true if device is powered down
+ * @data:              spi transfer buffers
  */
-
 struct ad5791_state {
        struct spi_device               *spi;
        struct regulator                *reg_vdd;
@@ -96,10 +98,6 @@ struct ad5791_state {
        } data[3] ____cacheline_aligned;
 };
 
-/**
- * ad5791_supported_device_ids:
- */
-
 enum ad5791_supported_device_ids {
        ID_AD5760,
        ID_AD5780,