dt-bindings: memory: tegra20: emc: Document new interconnect property

External Memory Controller is interconnected with memory controller and
with external memory. Document new interconnect property which turns EMC
into interconnect provider.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20201104164923.21238-8-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

diff --git a/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra20-emc.txt b/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra20-emc.txt
index 1b0d441..82bc5b2 100644 (file)
--- a/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra20-emc.txt
+++ b/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra20-emc.txt
@@ -13,6 +13,7 @@ Properties:
 - interrupts : Should contain EMC General interrupt.
 - clocks : Should contain EMC clock.
 - nvidia,memory-controller : Phandle of the Memory Controller node.
+- #interconnect-cells : Should be 0.
 
 Child device nodes describe the memory settings for different configurations and clock rates.
 
@@ -21,6 +22,7 @@ Example:
        memory-controller@7000f400 {
                #address-cells = < 1 >;
                #size-cells = < 0 >;
+               #interconnect-cells = <0>;
                compatible = "nvidia,tegra20-emc";
                reg = <0x7000f400 0x400>;
                interrupts = <0 78 0x04>;