media: cx25840: implement g_std operation

This commit implements g_std operation in cx25840 driver by returning the
last set video standard.

Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

diff --git a/drivers/media/i2c/cx25840/cx25840-core.c b/drivers/media/i2c/cx25840/cx25840-core.c
index 2bcaf23..8c1111b 100644 (file)
--- a/drivers/media/i2c/cx25840/cx25840-core.c
+++ b/drivers/media/i2c/cx25840/cx25840-core.c
@@ -1822,6 +1822,15 @@ static int cx25840_g_input_status(struct v4l2_subdev *sd, u32 *status)
        return 0;
 }
 
+static int cx25840_g_std(struct v4l2_subdev *sd, v4l2_std_id *std)
+{
+       struct cx25840_state *state = to_state(sd);
+
+       *std = state->std;
+
+       return 0;
+}
+
 static int cx25840_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
 {
        struct cx25840_state *state = to_state(sd);
@@ -5081,6 +5090,7 @@ static const struct v4l2_subdev_audio_ops cx25840_audio_ops = {
 };
 
 static const struct v4l2_subdev_video_ops cx25840_video_ops = {
+       .g_std = cx25840_g_std,
        .s_std = cx25840_s_std,
        .querystd = cx25840_querystd,
        .s_routing = cx25840_s_video_routing,