What mean the "spi spi0.0: child node 'controller-data' not found" at TX1 R28.2?

Autonomous Machines Jetson & Embedded Systems Jetson TX1
1

What mean the “spi spi0.0: child node ‘controller-data’ not found” at TX1 R28.2?

Now I will use spi1 port mode.

[    2.811458] spi-tegra114 7000d400.spi: Static pin configuration used
[    2.811996] spi-tegra114 7000d400.spi: registered master spi0
[    2.812113] spi spi0.0: setup 8 bpw, ~cpol, ~cpha, 40000000Hz
[    2.812120] spi spi0.0: child node 'controller-data' not found
[    2.812170] spi spi0.0: setup mode 0, 8 bits/w, 40000000 Hz max --> 0
[    2.812589] spi-tegra114 7000d400.spi: registered child spi0.0
[    2.812838] spi-tegra114 7000d600.spi: Static pin configuration used
[    2.813317] spi-tegra114 7000d600.spi: registered master spi1
[    2.813419] spi spi1.0: setup 8 bpw, ~cpol, ~cpha, 40000000Hz
[    2.813424] spi spi1.0: child node 'controller-data' not found
[    2.813470] spi spi1.0: setup mode 0, 8 bits/w, 40000000 Hz max --> 0
[    2.813828] spi-tegra114 7000d600.spi: registered child spi1.0
[    2.814052] spi-tegra114 7000d800.spi: Static pin configuration used
[    2.814559] spi-tegra114 7000d800.spi: registered master spi2
[    2.814662] spi spi2.0: setup 8 bpw, ~cpol, ~cpha, 40000000Hz
[    2.814667] spi spi2.0: child node 'controller-data' not found
[    2.814713] spi spi2.0: setup mode 0, 8 bits/w, 40000000 Hz max --> 0
2

Possible be the DT lost the “controller-data”

spi@70410000 {
	status = "okay";
	spi@0 {
		compatible = "spidev";
		reg = <0>;
		spi-max-frequency = <13000000>;

		controller-data {
			nvidia,x1-len-limit = <16>;
			nvidia,x1-bus-speed = <50>; /* In Mhz */
			nvidia,x1-dymmy-cycle = <0>;
			nvidia,x4-bus-speed = <80>;
			nvidia,x4-dymmy-cycle = <8>;
		};

	};
};
3

What’s the difference between this and the below?

nvidia,enable-hw-based-cs;
			nvidia,cs-setup-clk-count = <0x1e>;
			nvidia,cs-hold-clk-count = <0x1e>;
			nvidia,rx-clk-tap-delay = <0x1f>;
			nvidia,tx-clk-tap-delay = <0x0>;
4

Check below document for the detail information.

kernel/kernel-4.4/Documentation/devicetree/bindings/spi/nvidia,tegra114-spi.txt