[v4,1/2] dt-bindings: gpio: brcm: Add bindings for xgs-iproc
diff mbox series

Message ID 20191024202703.8017-2-chris.packham@alliedtelesis.co.nz
State New
Headers show
Series
  • gpio: brcm: XGS iProc GPIO driver
Related show

Commit Message

Chris Packham Oct. 24, 2019, 8:27 p.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 v4:
    - rename brcm,xgs-iproc.yaml -> brcm,xgs-iproc-gpio.yaml as suggested
    
    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-gpio.yaml    | 70 +++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/gpio/brcm,xgs-iproc-gpio.yaml

Comments

Rob Herring Oct. 25, 2019, 5:12 p.m. UTC | #1
On Thu, Oct 24, 2019 at 3:27 PM Chris Packham
<chris.packham@alliedtelesis.co.nz> 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 v4:
>     - rename brcm,xgs-iproc.yaml -> brcm,xgs-iproc-gpio.yaml as suggested
>
>     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-gpio.yaml    | 70 +++++++++++++++++++
>  1 file changed, 70 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/gpio/brcm,xgs-iproc-gpio.yaml
>
> diff --git a/Documentation/devicetree/bindings/gpio/brcm,xgs-iproc-gpio.yaml b/Documentation/devicetree/bindings/gpio/brcm,xgs-iproc-gpio.yaml
> new file mode 100644
> index 000000000000..ec1fd3a64aa2
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/gpio/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#

Documentation/devicetree/bindings/gpio/brcm,xgs-iproc-gpio.yaml: $id:
path/filename 'gpio/brcm,xgs-iproc.yaml' doesn't match actual filename

Otherwise,

Reviewed-by: Rob Herring <robh@kernel.org>
Chris Packham Oct. 28, 2019, 8:02 p.m. UTC | #2
Hi Rob,

On Fri, 2019-10-25 at 12:12 -0500, Rob Herring wrote:
> On Thu, Oct 24, 2019 at 3:27 PM Chris Packham
> <chris.packham@alliedtelesis.co.nz> 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 v4:
> >     - rename brcm,xgs-iproc.yaml -> brcm,xgs-iproc-gpio.yaml as suggested
> > 
> >     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-gpio.yaml    | 70 +++++++++++++++++++
> >  1 file changed, 70 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/gpio/brcm,xgs-iproc-gpio.yaml
> > 
> > diff --git a/Documentation/devicetree/bindings/gpio/brcm,xgs-iproc-gpio.yaml b/Documentation/devicetree/bindings/gpio/brcm,xgs-iproc-gpio.yaml
> > new file mode 100644
> > index 000000000000..ec1fd3a64aa2
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/gpio/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#
> 
> Documentation/devicetree/bindings/gpio/brcm,xgs-iproc-gpio.yaml: $id:
> path/filename 'gpio/brcm,xgs-iproc.yaml' doesn't match actual filename
> 
> Otherwise,
> 
> Reviewed-by: Rob Herring <robh@kernel.org>

I'll send a quick v5 of just this patch with the minor correction and
your reviewed-by.

Patch
diff mbox series

diff --git a/Documentation/devicetree/bindings/gpio/brcm,xgs-iproc-gpio.yaml b/Documentation/devicetree/bindings/gpio/brcm,xgs-iproc-gpio.yaml
new file mode 100644
index 000000000000..ec1fd3a64aa2
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/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>;
+    };
+
+
+...