Well, now it is supported. Please check mx53.dtsi:
tve: tve@63ff0000 { | |||
compatible = "fsl,imx53-tve"; | |||
reg = <0x63ff0000 0x1000>; | |||
interrupts = <92>; | |||
clocks = <&clks 69>, <&clks 116>; | |||
clock-names = "tve", "di_sel"; | |||
crtcs = <&ipu 1>; | |||
status = "disabled"; | |||
}; |