| Message ID | 20230222111213.2241633-5-keguang.zhang@gmail.com |
|---|---|
| State | New |
| Headers | show |
| Series | Devicetree support for Loongson-1 GPIO | expand |
On Wed, Feb 22, 2023 at 8:35 PM Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> wrote: > > On 22/02/2023 12:12, Keguang Zhang wrote: > > Add devicetree binding document for Loongson-1 GPIO. > > > > Signed-off-by: Keguang Zhang <keguang.zhang@gmail.com> > > --- > > .../bindings/gpio/loongson,ls1x-gpio.yaml | 60 +++++++++++++++++++ > > 1 file changed, 60 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/gpio/loongson,ls1x-gpio.yaml > > > > diff --git a/Documentation/devicetree/bindings/gpio/loongson,ls1x-gpio.yaml b/Documentation/devicetree/bindings/gpio/loongson,ls1x-gpio.yaml > > new file mode 100644 > > index 000000000000..e4ab49d48fae > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/gpio/loongson,ls1x-gpio.yaml > > @@ -0,0 +1,60 @@ > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > > +%YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/gpio/loongson,ls1x-gpio.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: Loongson-1 GPIO controller > > + > > +maintainers: > > + - Keguang Zhang <keguang.zhang@gmail.com> > > + > > +properties: > > + compatible: > > + const: loongson,ls1x-gpio > > + > > + reg: > > + maxItems: 1 > > + > > + gpio-controller: true > > + > > + "#gpio-cells": > > + const: 2 > > + > > + ngpios: > > + minimum: 1 > > + maximum: 32 > > Isn't this fixed at 32? Do you have hardware with different number of GPIOs? > Yes. The GPIO number of some groups is less than 32. > > + > > +required: > > + - compatible > > + - reg > > + - gpio-controller > > + - '#gpio-cells' > > Use consistent quotes - either " or ' > Will do. > > + - ngpios > > + > > +additionalProperties: false > > + > > +examples: > > + - | > > + gpio0: gpio@1fd010c0 { > > + compatible = "loongson,ls1x-gpio"; > > + reg = <0x1fd010c0 0x4>; > > + > > + gpio-controller; > > + #gpio-cells = <2>; > > + > > + ngpios = <32>; > > + }; > > + > > + - | > > + gpio1: gpio@1fd010c4 { > > + compatible = "loongson,ls1x-gpio"; > > + reg = <0x1fd010c4 0x4>; > > + > > + gpio-controller; > > + #gpio-cells = <2>; > > + > > + ngpios = <32>; > > + }; > > These are two the same examples, keep only one. > Will do. > Best regards, > Krzysztof >
diff --git a/Documentation/devicetree/bindings/gpio/loongson,ls1x-gpio.yaml b/Documentation/devicetree/bindings/gpio/loongson,ls1x-gpio.yaml new file mode 100644 index 000000000000..e4ab49d48fae --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/loongson,ls1x-gpio.yaml @@ -0,0 +1,60 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/gpio/loongson,ls1x-gpio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Loongson-1 GPIO controller + +maintainers: + - Keguang Zhang <keguang.zhang@gmail.com> + +properties: + compatible: + const: loongson,ls1x-gpio + + reg: + maxItems: 1 + + gpio-controller: true + + "#gpio-cells": + const: 2 + + ngpios: + minimum: 1 + maximum: 32 + +required: + - compatible + - reg + - gpio-controller + - '#gpio-cells' + - ngpios + +additionalProperties: false + +examples: + - | + gpio0: gpio@1fd010c0 { + compatible = "loongson,ls1x-gpio"; + reg = <0x1fd010c0 0x4>; + + gpio-controller; + #gpio-cells = <2>; + + ngpios = <32>; + }; + + - | + gpio1: gpio@1fd010c4 { + compatible = "loongson,ls1x-gpio"; + reg = <0x1fd010c4 0x4>; + + gpio-controller; + #gpio-cells = <2>; + + ngpios = <32>; + }; + +...
Add devicetree binding document for Loongson-1 GPIO. Signed-off-by: Keguang Zhang <keguang.zhang@gmail.com> --- .../bindings/gpio/loongson,ls1x-gpio.yaml | 60 +++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/loongson,ls1x-gpio.yaml