how to modify the jetson tx1 HDMI output format from rgb to yuv?

Hi all:
I want to modify the jetson tx1 HDMI output format from rgb to yuv, I changed the value of the register DC_DISP_CSC2_CONTROL_0 to make HDMI output format bt601, But I feel the image output there is a problem, I am not sure whether this is correct. Can you give me some advice?
thank you.
Here is my output image, first is format rgb, second is format bt601.


Hi shrambo,

In fact, our dc does not support yuv output because hardware does not.

Please check https://developer.nvidia.com/embedded/dlc/l4t-documentation-24-2-1 -> Software Features -> Kernel that HDMI out support only RGB 4:4:4.