@@ -78,6 +78,8 @@ struct tvp514x_std_info {
};
static struct tvp514x_reg tvp514x_reg_list_default[0x40];
+
+static int tvp514x_s_stream(struct v4l2_subdev *sd, int enable);
/**
* struct tvp514x_decoder - TVP5146/47 decoder object
* @sd: Subdevice Slave handle
@@ -643,6 +645,17 @@ static int tvp514x_s_routing(struct v4l2_subdev *sd,
/* Index out of bound */
return -EINVAL;
+ /*
+ * For the sequence streamon -> streamoff and again s_input
+ * it fails to lock the signal, since streamoff puts TVP514x
+ * into power off state which leads to failure in sub-sequent s_input.
+ *
+ * So power up the TVP514x device here, since it is important to lock
+ * the signal at this stage.
+ */
+ if (!decoder->streaming)
+ tvp514x_s_stream(sd, 1);
+
input_sel = input;
output_sel = output;