[v3,1/2] dt-bindings: gpio: brcm: Add bindings for xgs-iproc
diff mbox series

Message ID 20191024004816.5539-2-chris.packham@alliedtelesis.co.nz
State New
Headers show
Series
  • gpio: brcm: XGS iProc GPIO driver
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Commit Message

Chris Packham Oct. 24, 2019, 12:48 a.m. UTC
This GPIO controller is present on a number of Broadcom switch ASICs
with integrated SoCs. It is similar to the nsp-gpio and iproc-gpio
blocks but different enough to require a separate driver.

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
---

Notes:
    Changes in v3:
    - incorporate review comments from Rob and Bart
    
    Changes in v2:
    - Document as DT schema
    - Include ngpios, #gpio-cells and gpio-controller properties

 .../bindings/gpio/brcm,xgs-iproc.yaml         | 70 +++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/gpio/brcm,xgs-iproc.yaml

Comments

Scott Branden Oct. 24, 2019, 4:39 p.m. UTC | #1
Hi Chris,

On 2019-10-23 5:48 p.m., Chris Packham wrote:
> This GPIO controller is present on a number of Broadcom switch ASICs
> with integrated SoCs. It is similar to the nsp-gpio and iproc-gpio
> blocks but different enough to require a separate driver.
>
> Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
> ---
>
> Notes:
>      Changes in v3:
>      - incorporate review comments from Rob and Bart
>      
>      Changes in v2:
>      - Document as DT schema
>      - Include ngpios, #gpio-cells and gpio-controller properties
>
>   .../bindings/gpio/brcm,xgs-iproc.yaml         | 70 +++++++++++++++++++
>   1 file changed, 70 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/gpio/brcm,xgs-iproc.yaml
>
> diff --git a/Documentation/devicetree/bindings/gpio/brcm,xgs-iproc.yaml b/Documentation/devicetree/bindings/gpio/brcm,xgs-iproc.yaml
> new file mode 100644
> index 000000000000..ec1fd3a64aa2
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/gpio/brcm,xgs-iproc.yaml
This doc needs to have gpio in the name to make all other gpio binding 
documents.
ie.
brcm,xgs-iproc-gpio.yaml.
> @@ -0,0 +1,70 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/gpio/brcm,xgs-iproc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Broadcom XGS iProc GPIO controller
> +
> +maintainers:
> +  - Chris Packham <chris.packham@alliedtelesis.co.nz>
> +
> +description: |
> +  This controller is the Chip Common A GPIO present on a number of Broadcom
> +  switch ASICs with integrated SoCs.
> +
> +properties:
> +  compatible:
> +    const: brcm,iproc-gpio-cca
> +
> +  reg:
> +    items:
> +      - description: the I/O address containing the GPIO controller
> +                     registers.
> +      - description: the I/O address containing the Chip Common A interrupt
> +                     registers.
> +
> +  gpio-controller: true
> +
> +  '#gpio-cells':
> +      const: 2
> +
> +  ngpios:
> +    minimum: 0
> +    maximum: 32
> +
> +  interrupt-controller: true
> +
> +  '#interrupt-cells':
> +    const: 2
> +
> +  interrupts:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - "#gpio-cells"
> +  - gpio-controller
> +
> +dependencies:
> +  interrupt-controller: [ interrupts ]
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    gpio@18000060 {
> +        compatible = "brcm,iproc-gpio-cca";
> +        #gpio-cells = <2>;
> +        reg = <0x18000060 0x50>,
> +              <0x18000000 0x50>;
> +        ngpios = <12>;
> +        gpio-controller;
> +        interrupt-controller;
> +        #interrupt-cells = <2>;
> +        interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
> +    };
> +
> +
> +...

Patch
diff mbox series

diff --git a/Documentation/devicetree/bindings/gpio/brcm,xgs-iproc.yaml b/Documentation/devicetree/bindings/gpio/brcm,xgs-iproc.yaml
new file mode 100644
index 000000000000..ec1fd3a64aa2
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/brcm,xgs-iproc.yaml
@@ -0,0 +1,70 @@ 
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/brcm,xgs-iproc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom XGS iProc GPIO controller
+
+maintainers:
+  - Chris Packham <chris.packham@alliedtelesis.co.nz>
+
+description: |
+  This controller is the Chip Common A GPIO present on a number of Broadcom
+  switch ASICs with integrated SoCs.
+
+properties:
+  compatible:
+    const: brcm,iproc-gpio-cca
+
+  reg:
+    items:
+      - description: the I/O address containing the GPIO controller
+                     registers.
+      - description: the I/O address containing the Chip Common A interrupt
+                     registers.
+
+  gpio-controller: true
+
+  '#gpio-cells':
+      const: 2
+
+  ngpios:
+    minimum: 0
+    maximum: 32
+
+  interrupt-controller: true
+
+  '#interrupt-cells':
+    const: 2
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - "#gpio-cells"
+  - gpio-controller
+
+dependencies:
+  interrupt-controller: [ interrupts ]
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    gpio@18000060 {
+        compatible = "brcm,iproc-gpio-cca";
+        #gpio-cells = <2>;
+        reg = <0x18000060 0x50>,
+              <0x18000000 0x50>;
+        ngpios = <12>;
+        gpio-controller;
+        interrupt-controller;
+        #interrupt-cells = <2>;
+        interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
+    };
+
+
+...