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

 drivers/input/mouse/cyapa.c:130: warning: Function parameter or member 'reg' 
not described in 'cyapa_i2c_write'
 drivers/input/mouse/cyapa.c:130: warning: Excess function parameter 'ret' 
description in 'cyapa_i2c_write'

Cc: Dmitry Torokhov <dmitry.torok...@gmail.com>
Cc: Henrik Rydberg <rydb...@bitmath.org>
Cc: Dudley Du <d...@cypress.com>
Cc: Daniel Kurtz <djku...@chromium.org>
Cc: Benson Leung <ble...@chromium.org>
Cc: linux-in...@vger.kernel.org
Signed-off-by: Lee Jones <lee.jo...@linaro.org>
---
 drivers/input/mouse/cyapa.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/mouse/cyapa.c b/drivers/input/mouse/cyapa.c
index c675f156948b5..dacf7c0e43f98 100644
--- a/drivers/input/mouse/cyapa.c
+++ b/drivers/input/mouse/cyapa.c
@@ -119,7 +119,7 @@ static ssize_t cyapa_i2c_read(struct cyapa *cyapa, u8 reg, 
size_t len,
 /**
  * cyapa_i2c_write - Execute i2c block data write operation
  * @cyapa: Handle to this driver
- * @ret: Offset of the data to written in the register map
+ * @reg: Offset of the data to written in the register map
  * @len: number of bytes to write
  * @values: Data to be written
  *
-- 
2.25.1

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