Re: [RFC PATCH net-next 04/12] dt-bindings: reset: Add lan966x switch reset bindings
From: Rob Herring <robh@kernel.org>
Date: 2021-09-23 12:49:29
Also in:
linux-devicetree, linux-phy, linux-pm, lkml
On Mon, Sep 20, 2021 at 11:52:10AM +0200, Horatiu Vultur wrote:
quoted hunk ↗ jump to hunk
Document the lan966x switch reset device driver bindings Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com> --- .../bindings/reset/lan966x,rst.yaml | 58 +++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 Documentation/devicetree/bindings/reset/lan966x,rst.yamldiff --git a/Documentation/devicetree/bindings/reset/lan966x,rst.yaml b/Documentation/devicetree/bindings/reset/lan966x,rst.yaml new file mode 100644 index 000000000000..97d6334e4e0a --- /dev/null +++ b/Documentation/devicetree/bindings/reset/lan966x,rst.yaml@@ -0,0 +1,58 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/reset/lan966x,rst.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: Microchip lan966x Switch Reset Controller + +maintainers: + - Horatiu Vultur <horatiu.vultur@microchip.com> + - UNGLinuxDriver@microchip.com + +description: | + The Microchip lan966x Switch provides reset control and implements the + following + functions + - One Time Switch Core Reset (Soft Reset)
This looks like just some grouping of separate reset controllers. If there are 3 h/w blocks providing resets, then the DT should have 3 reset providers.
+ +properties: + $nodename: + pattern: "^reset-controller$"
Don't use 'pattern' for fixed strings.
+
+ compatible:
+ const: microchip,lan966x-switch-reset
+
+ "#reset-cells":
+ const: 1
+
+ cpu-syscon:
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+ description: syscon used to access CPU reset
+
+ switch-syscon:
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+ description: syscon used to access SWITCH reset
+
+ chip-syscon:
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+ description: syscon used to access CHIP reset
+
+required:
+ - compatible
+ - "#reset-cells"
+ - cpu-syscon
+ - switch-syscon
+ - chip-syscon
+
+additionalProperties: false
+
+examples:
+ - |
+ reset: reset-controller {
+ compatible = "microchip,lan966x-switch-reset";
+ #reset-cells = <1>;
+ cpu-syscon = <&cpu_ctrl>;
+ switch-syscon = <&switch_ctrl>;
+ chip-syscon = <&chip_ctrl>;
+ };
--
2.31.1