[PATCH] dt-bindings: usb: ti,keystone-dwc3.yaml: Improve schema

From: Roger Quadros
Date: Tue Jun 02 2020 - 08:41:07 EST


There were some review comments after the patch was integrated.
Address those.

Fixes: 1883a934e156 ("dt-bindings: usb: convert keystone-usb.txt to YAML")
Signed-off-by: Roger Quadros <rogerq@xxxxxx>
---
.../bindings/usb/ti,keystone-dwc3.yaml | 47 ++++++++++++++-----
1 file changed, 35 insertions(+), 12 deletions(-)

diff --git a/Documentation/devicetree/bindings/usb/ti,keystone-dwc3.yaml b/Documentation/devicetree/bindings/usb/ti,keystone-dwc3.yaml
index f127535feb0b..017c5883184b 100644
--- a/Documentation/devicetree/bindings/usb/ti,keystone-dwc3.yaml
+++ b/Documentation/devicetree/bindings/usb/ti,keystone-dwc3.yaml
@@ -11,30 +11,44 @@ maintainers:

properties:
compatible:
- oneOf:
- - const: "ti,keystone-dwc3"
- - const: "ti,am654-dwc3"
+ items:
+ - enum:
+ - "ti,keystone-dwc3"
+ - "ti,am654-dwc3"

reg:
maxItems: 1
- description: Address and length of the register set for the USB subsystem on
- the SOC.
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 1
+
+ ranges: true

interrupts:
maxItems: 1
- description: The irq number of this device that is used to interrupt the MPU.
-

clocks:
+ $ref: /schemas/types.yaml#definitions/phandle-array
description: Clock ID for USB functional clock.

+ assigned-clocks:
+ $ref: /schemas/types.yaml#definitions/phandle-array
+
+ assigned-clock-parents:
+ $ref: /schemas/types.yaml#definitions/phandle-array
+
power-domains:
+ $ref: /schemas/types.yaml#definitions/phandle-array
description: Should contain a phandle to a PM domain provider node
and an args specifier containing the USB device id
value. This property is as per the binding,
Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt

phys:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
description:
PHY specifier for the USB3.0 PHY. Some SoCs need the USB3.0 PHY
to be turned on before the controller.
@@ -44,31 +58,40 @@ properties:
items:
- const: "usb3-phy"

- dwc3:
+ dma-coherent: true
+
+ dma-ranges: true
+
+patternProperties:
+ "usb@[a-f0-9]+$":
+ type: object
description: This is the node representing the DWC3 controller instance
Documentation/devicetree/bindings/usb/dwc3.txt

required:
- compatible
- reg
+ - "#address-cells"
+ - "#size-cells"
+ - ranges
- interrupts
- - clocks
+
+additionalProperties: false

examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>

- usb: usb@2680000 {
+ dwc3@2680000 {
compatible = "ti,keystone-dwc3";
#address-cells = <1>;
#size-cells = <1>;
reg = <0x2680000 0x10000>;
clocks = <&clkusb>;
- clock-names = "usb";
interrupts = <GIC_SPI 393 IRQ_TYPE_EDGE_RISING>;
ranges;

- dwc3@2690000 {
+ usb@2690000 {
compatible = "synopsys,dwc3";
reg = <0x2690000 0x70000>;
interrupts = <GIC_SPI 393 IRQ_TYPE_EDGE_RISING>;
--
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