diff mbox series

[net-next,v1,2/4] dt-bindings: net: add schema for Microchip/SMSC LAN95xx USB Ethernet controllers

Message ID 20220127104905.899341-3-o.rempel@pengutronix.de
State Superseded
Headers show
Series None | expand

Commit Message

Oleksij Rempel Jan. 27, 2022, 10:49 a.m. UTC 
Create initial schema for Microchip/SMSC LAN95xx USB Ethernet controllers and
import all currently supported USB IDs form drivers/net/usb/smsc95xx.c

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
---
 .../bindings/net/microchip,lan95xx.yaml       | 82 +++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/microchip,lan95xx.yaml

Comments

Oleksij Rempel Jan. 27, 2022, 11:28 a.m. UTC | #1 
On Thu, Jan 27, 2022 at 11:59:11AM +0100, Greg KH wrote:
> On Thu, Jan 27, 2022 at 11:49:03AM +0100, Oleksij Rempel wrote:
> > Create initial schema for Microchip/SMSC LAN95xx USB Ethernet controllers and
> > import all currently supported USB IDs form drivers/net/usb/smsc95xx.c
> 
> That is a loosing game to play.  There is a reason that kernel drivers
> only require a device id in 1 place, instead of multiple places like
> other operating systems.  Please do not go back and make the same
> mistakes others have.
> 
> Not to mention that I think overall this is a bad idea anyway.  USB
> devices are self-describing, don't add them to DT.

This patch set is the pre-step before making it even more complicated
with description of external PHYs and DSA switches. I assume, it is
preferable to have schema to be able to automatically validate it.

Regards,
Oleksij
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/net/microchip,lan95xx.yaml b/Documentation/devicetree/bindings/net/microchip,lan95xx.yaml
new file mode 100644
index 000000000000..b185c7068a8a
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/microchip,lan95xx.yaml
@@ -0,0 +1,82 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/microchip,lan95xx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: The device tree bindings for the USB Ethernet controllers
+
+maintainers:
+  - Oleksij Rempel <o.rempel@pengutronix.de>
+
+description: |
+  Device tree properties for hard wired SMSC95xx compatible USB Ethernet
+  controller.
+
+allOf:
+  - $ref: ethernet-controller.yaml#
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - usb424,9500   # SMSC9500 USB Ethernet Device
+          - usb424,9505   # SMSC9505 USB Ethernet Device
+          - usb424,9530   # SMSC LAN9530 USB Ethernet Device
+          - usb424,9730   # SMSC LAN9730 USB Ethernet Device
+          - usb424,9900   # SMSC9500 USB Ethernet Device (SAL10)
+          - usb424,9901   # SMSC9505 USB Ethernet Device (SAL10)
+          - usb424,9902   # SMSC9500A USB Ethernet Device (SAL10)
+          - usb424,9903   # SMSC9505A USB Ethernet Device (SAL10)
+          - usb424,9904   # SMSC9512/9514 USB Hub & Ethernet Device (SAL10)
+          - usb424,9905   # SMSC9500A USB Ethernet Device (HAL)
+          - usb424,9906   # SMSC9505A USB Ethernet Device (HAL)
+          - usb424,9907   # SMSC9500 USB Ethernet Device (Alternate ID)
+          - usb424,9908   # SMSC9500A USB Ethernet Device (Alternate ID)
+          - usb424,9909   # SMSC9512/9514 USB Hub & Ethernet Devic.  ID)
+          - usb424,9e00   # SMSC9500A USB Ethernet Device
+          - usb424,9e01   # SMSC9505A USB Ethernet Device
+          - usb424,9e08   # SMSC LAN89530 USB Ethernet Device
+          - usb424,ec00   # SMSC9512/9514 USB Hub & Ethernet Device
+
+  reg: true
+  local-mac-address: true
+  mac-address: true
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    usb@11270000 {
+        reg = <0x11270000 0x1000>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        ethernet@1 {
+            compatible = "usb424,ec00";
+            reg = <1>;
+            local-mac-address = [00 00 00 00 00 00];
+        };
+    };
+  - |
+    usb@11270000 {
+        reg = <0x11270000 0x1000>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        usb1@1 {
+            compatible = "usb424,9514";
+            reg = <1>;
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            ethernet@1 {
+               compatible = "usb424,ec00";
+               reg = <1>;
+            };
+        };
+    };