Re: [PATCH v5 net-next 10/10] dt-bindings: net: korina: Add DT bindings for IDT 79RC3243x SoCs

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On 16.04.2021 16:35, Thomas Bogendoerfer wrote:
On Fri, Apr 16, 2021 at 12:29:46PM +0300, Sergei Shtylyov wrote:
On 16.04.2021 11:52, Thomas Bogendoerfer wrote:

Add device tree bindings for ethernet controller integrated into
IDT 79RC3243x SoCs.

Signed-off-by: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>
---
   .../bindings/net/idt,3243x-emac.yaml          | 74 +++++++++++++++++++
   1 file changed, 74 insertions(+)
   create mode 100644 Documentation/devicetree/bindings/net/idt,3243x-emac.yaml

diff --git a/Documentation/devicetree/bindings/net/idt,3243x-emac.yaml b/Documentation/devicetree/bindings/net/idt,3243x-emac.yaml
new file mode 100644
index 000000000000..3697af5cb66f
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/idt,3243x-emac.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/idt,3243x-emac.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: IDT 79rc3243x Ethernet controller
+
+description: Ethernet controller integrated into IDT 79RC3243x family SoCs
+
+maintainers:
+  - Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>
+
+allOf:
+  - $ref: ethernet-controller.yaml#
+
+properties:
+  compatible:
+    const: idt,3243x-emac
+
+  reg:
+    maxItems: 3
+
+  reg-names:
+    items:
+      - const: korina_regs
+      - const: korina_dma_rx
+      - const: korina_dma_tx
+
+  interrupts:
+    items:
+      - description: RX interrupt
+      - description: TX interrupt
+
+  interrupt-names:
+    items:
+      - const: korina_rx
+      - const: korina_tx
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: mdioclk
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - interrupts
+  - interrupt-names
+
+additionalProperties: false
+
+examples:
+  - |
+
+    ethernet@60000 {
+        compatible = "idt,3243x-emac";
+
+        reg = <0x60000 0x10000>,
+              <0x40000 0x14>,
+              <0x40014 0x14>;
+        reg-names = "korina_regs",
+                    "korina_dma_rx",
+                    "korina_dma_tx";
+
+        interrupts-extended = <&rcpic3 0>, <&rcpic3 1>;

    You use this prop, yet don't describe it?

that's just interrupt-parent and interrupts in one statement. And since

I know. :-) Yet you don't mention it, making the "interrupts" prop mandatory instead. And as both interrupt parents are the same here, it does not even seem justified...

make dt_binding_check didn't complained I thought that's good this way.
Rob, do I need to describe interrupts-extended as well ?

I could change that to interrupt-parent/interrupts as the driver no
longer uses dma under/overrun interrupts, which have a different
interrupt-parent.

   In DT, we describe the hardware,  not the driver's capabilities.

Thomas.

MBR, Sergei




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