[PATCH] dt-bindings: mips: lantiq: Document Lantiq Xway EBU bindings

Document the Lantiq Xway SoC series External Bus Unit (EBU) bindings.

Signed-off-by: Aleksander Jan Bajkowski <redacted>
---
 .../bindings/mips/lantiq/lantiq,ebu.yaml      | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mips/lantiq/lantiq,ebu.yaml

diff --git a/Documentation/devicetree/bindings/mips/lantiq/lantiq,ebu.yaml b/Documentation/devicetree/bindings/mips/lantiq/lantiq,ebu.yaml
new file mode 100644
index 000000000000..0fada1f085a9
--- /dev/null
+++ b/Documentation/devicetree/bindings/mips/lantiq/lantiq,ebu.yaml

@@ -0,0 +1,32 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mips/lantiq/lantiq,ebu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Lantiq Xway SoC series External Bus Unit (EBU)
+
+maintainers:
+  - John Crispin <john@phrozen.org>
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - lantiq,ebu-xway
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    ebu@105300 {
+        compatible = "lantiq,ebu-xway";
+        reg = <0x105300 0x100>;
+    };

-- 
2.20.1

On Fri, 01 Jan 2021 22:37:59 +0100, Aleksander Jan Bajkowski wrote:

Document the Lantiq Xway SoC series External Bus Unit (EBU) bindings.

Signed-off-by: Aleksander Jan Bajkowski <redacted>
---
 .../bindings/mips/lantiq/lantiq,ebu.yaml      | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mips/lantiq/lantiq,ebu.yaml

Reviewed-by: Rob Herring <robh@kernel.org>

On Fri, Jan 01, 2021 at 10:37:59PM +0100, Aleksander Jan Bajkowski wrote:

Document the Lantiq Xway SoC series External Bus Unit (EBU) bindings.

Signed-off-by: Aleksander Jan Bajkowski <redacted>
---
 .../bindings/mips/lantiq/lantiq,ebu.yaml      | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mips/lantiq/lantiq,ebu.yaml

applied to mips-next.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]

(again, sorry for seeing this patch late)

+properties:
+  compatible:
+    items:
+      - enum:
+          - lantiq,ebu-xway

I think this compatible string is very generic and with that comes some
problems.
There is actually two different versions of this IP: one which has
support for controlling the interrupt of the PCI controller on some
SoCs (Danube, xRX100, xRX200). Other SoC variants (Falcon, Amazon-SE)
don't have that interrupt-controller as they don't have PCI support.

Also there is at least one clock input. I *assume* we need to describe
it but I am not sure (as this platform doesn't use the common clock
framework yet).

My version of this can be found here [0]. It's still sitting in my
tree because it has a dependency on an ICU patch in my tree which I
could not make work properly yet.


Best regards,
Martin


[0] https://github.com/xdarklight/linux/blob/8d5c632e11fe0ca14497efc2f9d99b69f75590ba/Documentation/devicetree/bindings/mips/lantiq/lantiq%2Cebu.yaml