--- zzzz-none-000/linux-3.10.107/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-ahb.txt	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-ahb.txt	2021-02-04 17:41:59.000000000 +0000
@@ -1,10 +1,16 @@
 NVIDIA Tegra AHB
 
 Required properties:
-- compatible : "nvidia,tegra20-ahb" or "nvidia,tegra30-ahb"
-- reg : Should contain 1 register ranges(address and length)
+- compatible : For Tegra20, must contain "nvidia,tegra20-ahb".  For
+  Tegra30, must contain "nvidia,tegra30-ahb".  Otherwise, must contain
+  '"nvidia,<chip>-ahb", "nvidia,tegra30-ahb"' where <chip> is tegra124,
+  tegra132, or tegra210.
+- reg : Should contain 1 register ranges(address and length).  For
+  Tegra20, Tegra30, and Tegra114 chips, the value must be <0x6000c004
+  0x10c>.  For Tegra124, Tegra132 and Tegra210 chips, the value should
+  be be <0x6000c000 0x150>.
 
-Example:
+Example (for a Tegra20 chip):
 	ahb: ahb@6000c004 {
 		compatible = "nvidia,tegra20-ahb";
 		reg = <0x6000c004 0x10c>; /* AHB Arbitration + Gizmo Controller */