czw., 17 paź 2019 o 05:11 Chris Packham <chris.packham@xxxxxxxxxxxxxxxxxxx> napisał(a): > > 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@xxxxxxxxxxxxxxxxxxx> > --- > > Notes: > Changes in v2: > - Document as DT schema > - Include ngpios, #gpio-cells and gpio-controller properties > > .../bindings/gpio/brcm,xgs-iproc.yaml | 83 +++++++++++++++++++ > 1 file changed, 83 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..71998551209e > --- /dev/null > +++ b/Documentation/devicetree/bindings/gpio/brcm,xgs-iproc.yaml > @@ -0,0 +1,83 @@ > +# 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@xxxxxxxxxxxxxxxxxxx> > + > +description: | > + This controller is the Chip Common A GPIO present on a number of Broadcom > + switch ASICs with integrated SoCs. > + > +properties: > + compatible: > + enum: > + - brcm,iproc-gpio-cca I believe this should be: const: brcm,iproc-gpio-cca Bart > + > + reg: > + minItems: 2 > + maxItems: 2 > + description: > + The first region defines the base I/O address containing > + the GPIO controller registers. The second region defines > + the I/O address containing the Chip Common A interrupt > + registers. > + > + gpio-controller: true > + > + '#gpio-cells': > + const: 2 > + > + ngpios: > + $ref: /schemas/types.yaml#/definitions/uint32 > + minimum: 0 > + maximum: 32 > + > + interrupt-controller: > + type: boolean > + > + '#interrupt-cells': > + const: 2 > + > + interrupts: > + maxItems: 1 > + > +required: > + - compatible > + - reg > + - "#gpio-cells" > + - gpio-controller > + > +allOf: > + - if: > + properties: > + interrupt-controller: > + contains: > + const: true > + then: > + required: > + - interrupts > + - '#interrupt-cells' > + > +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>; > + }; > + > + > +... > -- > 2.23.0 >
