[PATCH 1/3] spi: spi-mem: Add missing description for data.nbytes field

[Boris Brezillon <boris.brezillon@xxxxxxxxxxx>]

Add a description for spi_mem_op.data.nbytes to the kerneldoc header.

Fixes: c36ff266dc82 ("spi: Extend the core to ease integration of SPI memory controllers")
Signed-off-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxx>
---
 include/linux/spi/spi-mem.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/spi/spi-mem.h b/include/linux/spi/spi-mem.h
index b2bd4b4127c4..aeb87c02cf1d 100644
--- a/include/linux/spi/spi-mem.h
+++ b/include/linux/spi/spi-mem.h
@@ -81,6 +81,8 @@ enum spi_mem_data_dir {
  * @dummy.buswidth: number of IO lanes used to transmit the dummy bytes
  * @data.buswidth: number of IO lanes used to send/receive the data
  * @data.dir: direction of the transfer
+ * @data.nbytes: number of data bytes to send/receive. Can be zero if the
+ *		 operation does not involve transferring data
  * @data.buf.in: input buffer
  * @data.buf.out: output buffer
  */
-- 
2.14.1


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