diff mbox series

[03/22] dt-bindings: usb: Add downstream facing ports to realtek binding

Message ID 20240210070934.2549994-4-swboyd@chromium.org
State New
Headers
Series platform/chrome: Add DT USB/DP muxing/topology to Trogdor |

Commit Message

Stephen Boyd Feb. 10, 2024, 7:09 a.m. UTC 
  Add a graph with 4 output endpoints to this hub binding to support the
scenario where a downstream facing port is connected to a device that
isn't a connector or a USB device with a VID:PID. This will be used to
connect downstream facing ports to USB type-c switches so the USB
superspeed and high speed lanes can be put onto USB connectors.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Cc: Conor Dooley <conor+dt@kernel.org>
Cc: Matthias Kaehlcke <mka@chromium.org>
Cc: <linux-usb@vger.kernel.org>
Cc: <devicetree@vger.kernel.org>
Cc: Pin-yen Lin <treapking@chromium.org>
Cc: maciek swiech <drmasquatch@google.com>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
---
 .../bindings/usb/realtek,rts5411.yaml         | 50 +++++++++++++++++++
 1 file changed, 50 insertions(+)

Comments

Rob Herring Feb. 10, 2024, 11:29 a.m. UTC | #1 
On Fri, 09 Feb 2024 23:09:14 -0800, Stephen Boyd wrote:
> Add a graph with 4 output endpoints to this hub binding to support the
> scenario where a downstream facing port is connected to a device that
> isn't a connector or a USB device with a VID:PID. This will be used to
> connect downstream facing ports to USB type-c switches so the USB
> superspeed and high speed lanes can be put onto USB connectors.
> 
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: Rob Herring <robh+dt@kernel.org>
> Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
> Cc: Conor Dooley <conor+dt@kernel.org>
> Cc: Matthias Kaehlcke <mka@chromium.org>
> Cc: <linux-usb@vger.kernel.org>
> Cc: <devicetree@vger.kernel.org>
> Cc: Pin-yen Lin <treapking@chromium.org>
> Cc: maciek swiech <drmasquatch@google.com>
> Signed-off-by: Stephen Boyd <swboyd@chromium.org>
> ---
>  .../bindings/usb/realtek,rts5411.yaml         | 50 +++++++++++++++++++
>  1 file changed, 50 insertions(+)
> 

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:

dtschema/dtc warnings/errors:
Documentation/devicetree/bindings/usb/realtek,rts5411.example.dts:32.21-31: Warning (reg_format): /example-0/usb/hub@1/device@2:reg: property has invalid length (4 bytes) (#address-cells == 2, #size-cells == 1)
Documentation/devicetree/bindings/usb/realtek,rts5411.example.dtb: Warning (pci_device_reg): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/usb/realtek,rts5411.example.dtb: Warning (pci_device_bus_num): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/usb/realtek,rts5411.example.dtb: Warning (simple_bus_reg): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/usb/realtek,rts5411.example.dtb: Warning (i2c_bus_reg): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/usb/realtek,rts5411.example.dtb: Warning (spi_bus_reg): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/usb/realtek,rts5411.example.dts:30.26-33.19: Warning (avoid_default_addr_size): /example-0/usb/hub@1/device@2: Relying on default #address-cells value
Documentation/devicetree/bindings/usb/realtek,rts5411.example.dts:30.26-33.19: Warning (avoid_default_addr_size): /example-0/usb/hub@1/device@2: Relying on default #size-cells value
Documentation/devicetree/bindings/usb/realtek,rts5411.example.dtb: Warning (unique_unit_address_if_enabled): Failed prerequisite 'avoid_default_addr_size'
Documentation/devicetree/bindings/usb/realtek,rts5411.example.dts:43.23-50.19: Warning (graph_port): /example-0/usb/hub@2/ports: graph port node name should be 'port'
Documentation/devicetree/bindings/usb/realtek,rts5411.example.dts:46.28-49.23: Warning (graph_endpoint): /example-0/usb/hub@2/ports/port@0: graph endpoint node name should be 'endpoint'

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20240210070934.2549994-4-swboyd@chromium.org

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/usb/realtek,rts5411.yaml b/Documentation/devicetree/bindings/usb/realtek,rts5411.yaml
index f0784d2e86da..5480a31698be 100644
--- a/Documentation/devicetree/bindings/usb/realtek,rts5411.yaml
+++ b/Documentation/devicetree/bindings/usb/realtek,rts5411.yaml
@@ -21,6 +21,12 @@  properties:
 
   reg: true
 
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 0
+
   vdd-supply:
     description:
       phandle to the regulator that provides power to the hub.
@@ -30,6 +36,36 @@  properties:
     description:
       phandle to the peer hub on the controller.
 
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        description:
+          1st downstream facing USB port
+
+      port@2:
+        $ref: /schemas/graph.yaml#/properties/port
+        description:
+          2nd downstream facing USB port
+
+      port@3:
+        $ref: /schemas/graph.yaml#/properties/port
+        description:
+          3rd downstream facing USB port
+
+      port@4:
+        $ref: /schemas/graph.yaml#/properties/port
+        description:
+          4th downstream facing USB port
+
+patternProperties:
+  "^.*@[1-4]$":
+    description: The hard wired USB devices
+    type: object
+    $ref: /schemas/usb/usb-device.yaml
+
 required:
   - peer-hub
   - compatible
@@ -50,6 +86,11 @@  examples:
             reg = <1>;
             vdd-supply = <&pp3300_hub>;
             peer-hub = <&hub_3_0>;
+            /* USB 2.0 device on port 2 */
+            device@2 {
+                compatible = "usb123,4567";
+                reg = <2>;
+            };
         };
 
         /* 3.0 hub on port 2 */
@@ -58,5 +99,14 @@  examples:
             reg = <2>;
             vdd-supply = <&pp3300_hub>;
             peer-hub = <&hub_2_0>;
+
+            ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+                port@0 {
+                    reg = <0>;
+                    remote-endpoint = <&usb_a0_ss>;
+                };
+            };
         };
     };