[PATCH v3 1/3] dt-bindings: reset: microchip sparx5 reset driver bindings

[PATCH v3 1/3] dt-bindings: reset: microchip sparx5 reset driver bindings

[Steen Hegelund]

Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
---
 .../bindings/reset/microchip,rst.yaml         | 59 +++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/reset/microchip,rst.yaml

diff --git a/Documentation/devicetree/bindings/reset/microchip,rst.yaml b/Documentation/devicetree/bindings/reset/microchip,rst.yaml
new file mode 100644
index 000000000000..af01016e246f
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/microchip,rst.yaml
@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/reset/microchip,rst.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Microchip Sparx5 Switch Reset Controller
+
+maintainers:
+  - Steen Hegelund <steen.hegelund@microchip.com>
+  - Lars Povlsen <lars.povlsen@microchip.com>
+
+description: |
+  The Microchip Sparx5 Switch provides reset control and implements the following
+  functions
+    - One Time Switch Core Reset (Soft Reset)
+
+properties:
+  $nodename:
+    pattern: "^reset-controller@[0-9a-f]+$"
+
+  compatible:
+    const: microchip,sparx5-switch-reset
+
+  reg:
+    maxItems: 1
+
+  "#reset-cells":
+    const: 1
+
+  cpu-syscon:
+    $ref: "/schemas/types.yaml#/definitions/phandle"
+    description: syscon used to access CPU reset
+    maxItems: 1
+
+  gcb-syscon:
+    $ref: "/schemas/types.yaml#/definitions/phandle"
+    description: syscon used to access Global Control Block
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - "#reset-cells"
+  - cpu-syscon
+  - gcb-syscon
+
+additionalProperties: false
+
+examples:
+  - |
+    reset: reset-controller@0 {
+        compatible = "microchip,sparx5-switch-reset";
+        reg = <0x0 0x0>;
+        #reset-cells = <1>;
+        cpu-syscon = <&cpu_ctrl>;
+        gcb-syscon = <&gcb_ctrl>;
+    };
+
-- 
2.29.2

[PATCH v3 3/3] arm64: dts: reset: add microchip sparx5 switch reset driver

[Steen Hegelund]

Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
---
 arch/arm64/boot/dts/microchip/sparx5.dtsi | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/microchip/sparx5.dtsi b/arch/arm64/boot/dts/microchip/sparx5.dtsi
index 380281f312d8..4edbb9fcdce0 100644
--- a/arch/arm64/boot/dts/microchip/sparx5.dtsi
+++ b/arch/arm64/boot/dts/microchip/sparx5.dtsi
@@ -132,9 +132,17 @@ mux: mux-controller {
 			};
 		};
 
-		reset@611010008 {
-			compatible = "microchip,sparx5-chip-reset";
-			reg = <0x6 0x11010008 0x4>;
+		gcb_ctrl: syscon@611010000 {
+			compatible = "microchip,sparx5-gcb-syscon", "syscon";
+			reg = <0x6 0x11010000 0x10000>;
+		};
+
+		reset: reset-controller@0 {
+			compatible = "microchip,sparx5-switch-reset";
+			reg = <0x6 0x0 0x0>;
+			#reset-cells = <1>;
+			cpu-syscon = <&cpu_ctrl>;
+			gcb-syscon = <&gcb_ctrl>;
 		};
 
 		uart0: serial@600100000 {
-- 
2.29.2

Re: [PATCH v3 1/3] dt-bindings: reset: microchip sparx5 reset driver bindings

[Alexandre Belloni]

Hi,

Every patches need a commit message, even if in this case it will be
very small.

On 14/01/2021 17:24:30+0100, Steen Hegelund wrote:
> Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
> ---
>  .../bindings/reset/microchip,rst.yaml         | 59 +++++++++++++++++++
>  1 file changed, 59 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/reset/microchip,rst.yaml
> 
> diff --git a/Documentation/devicetree/bindings/reset/microchip,rst.yaml b/Documentation/devicetree/bindings/reset/microchip,rst.yaml
> new file mode 100644
> index 000000000000..af01016e246f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/reset/microchip,rst.yaml
> @@ -0,0 +1,59 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/reset/microchip,rst.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: Microchip Sparx5 Switch Reset Controller
> +
> +maintainers:
> +  - Steen Hegelund <steen.hegelund@microchip.com>
> +  - Lars Povlsen <lars.povlsen@microchip.com>
> +
> +description: |
> +  The Microchip Sparx5 Switch provides reset control and implements the following
> +  functions
> +    - One Time Switch Core Reset (Soft Reset)
> +
> +properties:
> +  $nodename:
> +    pattern: "^reset-controller@[0-9a-f]+$"
> +
> +  compatible:
> +    const: microchip,sparx5-switch-reset
> +
> +  reg:
> +    maxItems: 1
> +
> +  "#reset-cells":
> +    const: 1
> +
> +  cpu-syscon:
> +    $ref: "/schemas/types.yaml#/definitions/phandle"
> +    description: syscon used to access CPU reset
> +    maxItems: 1
> +
> +  gcb-syscon:
> +    $ref: "/schemas/types.yaml#/definitions/phandle"
> +    description: syscon used to access Global Control Block
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - "#reset-cells"
> +  - cpu-syscon
> +  - gcb-syscon
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    reset: reset-controller@0 {
> +        compatible = "microchip,sparx5-switch-reset";
> +        reg = <0x0 0x0>;
> +        #reset-cells = <1>;
> +        cpu-syscon = <&cpu_ctrl>;
> +        gcb-syscon = <&gcb_ctrl>;
> +    };
> +
> -- 
> 2.29.2
> 

-- 
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

Re: [PATCH v3 1/3] dt-bindings: reset: microchip sparx5 reset driver bindings

[Steen.Hegelund]

Hi Alex,

On Tue, 2021-01-19 at 21:35 +0100, Alexandre Belloni wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you
> know the content is safe
> 
> Hi,
> 
> Every patches need a commit message, even if in this case it will be
> very small.

Yes that is a mistake.  I will update the series.

> 
> On 14/01/2021 17:24:30+0100, Steen Hegelund wrote:
> > Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
> > ---
> >  .../bindings/reset/microchip,rst.yaml         | 59
> > +++++++++++++++++++
> >  1 file changed, 59 insertions(+)
> >  create mode 100644
> > Documentation/devicetree/bindings/reset/microchip,rst.yaml
> > 
> > diff --git
> > a/Documentation/devicetree/bindings/reset/microchip,rst.yaml
> > b/Documentation/devicetree/bindings/reset/microchip,rst.yaml
> > new file mode 100644
> > index 000000000000..af01016e246f
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/reset/microchip,rst.yaml
> > @@ -0,0 +1,59 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: "http://devicetree.org/schemas/reset/microchip,rst.yaml#"
> > +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> > +
> > +title: Microchip Sparx5 Switch Reset Controller
> > +
> > +maintainers:
> > +  - Steen Hegelund <steen.hegelund@microchip.com>
> > +  - Lars Povlsen <lars.povlsen@microchip.com>
> > +
> > +description: |
> > +  The Microchip Sparx5 Switch provides reset control and
> > implements the following
> > +  functions
> > +    - One Time Switch Core Reset (Soft Reset)
> > +
> > +properties:
> > +  $nodename:
> > +    pattern: "^reset-controller@[0-9a-f]+$"
> > +
> > +  compatible:
> > +    const: microchip,sparx5-switch-reset
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  "#reset-cells":
> > +    const: 1
> > +
> > +  cpu-syscon:
> > +    $ref: "/schemas/types.yaml#/definitions/phandle"
> > +    description: syscon used to access CPU reset
> > +    maxItems: 1
> > +
> > +  gcb-syscon:
> > +    $ref: "/schemas/types.yaml#/definitions/phandle"
> > +    description: syscon used to access Global Control Block
> > +    maxItems: 1
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - "#reset-cells"
> > +  - cpu-syscon
> > +  - gcb-syscon
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    reset: reset-controller@0 {
> > +        compatible = "microchip,sparx5-switch-reset";
> > +        reg = <0x0 0x0>;
> > +        #reset-cells = <1>;
> > +        cpu-syscon = <&cpu_ctrl>;
> > +        gcb-syscon = <&gcb_ctrl>;
> > +    };
> > +
> > --
> > 2.29.2
> > 
> 
> --
> Alexandre Belloni, Bootlin
> Embedded Linux and Kernel engineering
> https://bootlin.com


Thanks for your comments
BR
Steen
-- 
BR
Steen

-=-=-=-=-=-=-=-=-=-=-=-=-=-=
steen.hegelund@microchip.com