Thread (27 messages) flat view 27 messages, 3 authors, 25d ago

Re: [PATCH v2 5/9] dt-bindings: usb: dwc3: Document ST STM32MP2 DWC3 xHCI USB controller

From: Krzysztof Kozlowski <krzk@kernel.org>
Date: 2026-08-18 08:16:12
Also in: linux-devicetree, linux-phy, linux-usb, lkml

On Sun, Aug 16, 2026 at 11:37:07PM +0200, Marek Vasut wrote:
+properties:
+  compatible:
+    const: st,stm32mp25-dwc3
+
+  reg:
+    maxItems: 1
+
+  access-controllers:
+    maxItems: 1
+
+  clocks:
+    minItems: 3
+    maxItems: 3
+
+  clock-names:
+    items:
+      - const: ref
+      - const: bus_early
+      - const: suspend
+
+  dr_mode:
+    $ref: /schemas/types.yaml#/definitions/string
+    enum: [host, peripheral, otg]
+
+  interrupts:
+    maxItems: 1
+
+  phys:
+    minItems: 1
+    maxItems: 2
+
+  phy-names:
+    minItems: 1
+    items:
+      - const: usb2-phy
+      - const: usb3-phy
+
+  resets:
+    minItems: 1
Hm? You keep coming with some odd style, not present in any other files.
Where do you see such code - property followed by minItems alone? This
applies to other places as well.
+
+  st,syscfg:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    description: Phandle to system configuration controller.
+    items:
+      - items:
+          - description: phandle to syscfg
+          - description: USB3DR control offset within syscfg
+
+  st,enable-port-power-control:
+    type: boolean
+    description: Enable Host-Mode Port Power Control (bit-3 of capability param HCCPARAMS)
Why wouldn't this be enavled always? Why is this a board-level property?
+
+  st,ovrcur-active-low:
Don't re-invent stuff:
st,over-current-active-low
+    type: boolean
+    description: Over-Current signal polarity is active-low
+
+  st,vbusen-active-low:
+    type: boolean
+    description: VBUS-ENABLE signal polarity is active-low
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+  - phys
+  - phy-names
+  - resets
+  - st,syscfg
+
+unevaluatedProperties: false
So where did you reference any other schema - for properties here and
for this unevaluatedProps?
+
+examples:
+  - |
+    #include <dt-bindings/clock/st,stm32mp25-rcc.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/reset/st,stm32mp25-rcc.h>
+
+    usb3dr: usb@48300000 {
Drop unused label
+        compatible = "st,stm32mp25-dwc3";
+        reg = <0x48300000 0x100000>;
+        clocks = <&rcc CK_KER_USB2PHY2>, <&rcc CK_BUS_USB3DR>, <&rcc CK_KER_USB2PHY2>;
+        clock-names = "ref", "bus_early", "suspend";
+        interrupts = <GIC_SPI 228 IRQ_TYPE_LEVEL_HIGH>;
+        phys = <&usb2_phy>, <&usb3_phy>;
+        phy-names = "usb2-phy", "usb3-phy";
+        resets = <&rcc USB3DR_R>;
+        st,ovrcur-active-low;
+        st,syscfg = <&syscfg 0x4800>;
+        st,vbusen-active-low;
+    };
-- 
2.53.0
  
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help