[PATCH v2] ths7303: Declare as static a private function

[Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>]

git grep shows that the function is only called from ths7303.c

Fix this build warning:

CC      drivers/media/i2c/ths7303.o
drivers/media/i2c/ths7303.c:86:5: warning: no previous prototype for  ‘ths7303_setval’ [-Wmissing-prototypes]
   int ths7303_setval(struct v4l2_subdev *sd, enum ths7303_filter_mode mode)
        ^

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
v2: Comment by Laurent Pinchart
Align parameters

 drivers/media/i2c/ths7303.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/media/i2c/ths7303.c b/drivers/media/i2c/ths7303.c
index 42276d9..ed9ae88 100644
--- a/drivers/media/i2c/ths7303.c
+++ b/drivers/media/i2c/ths7303.c
@@ -83,7 +83,8 @@ static int ths7303_write(struct v4l2_subdev *sd, u8 reg, u8 val)
 }
 
 /* following function is used to set ths7303 */
-int ths7303_setval(struct v4l2_subdev *sd, enum ths7303_filter_mode mode)
+static int ths7303_setval(struct v4l2_subdev *sd,
+			  enum ths7303_filter_mode mode)
 {
 	struct i2c_client *client = v4l2_get_subdevdata(sd);
 	struct ths7303_state *state = to_state(sd);
-- 
1.8.4.rc3