| Message ID | PH7PR20MB4962FFFB586489154B1403D6BB4E2@PH7PR20MB4962.namprd20.prod.outlook.com (mailing list archive) |
|---|---|
| State | Handled Elsewhere |
| Delegated to: | Conor Dooley |
| Headers | show |
| Series | riscv: sophgo: cv18xx: add top misc system controller | expand |
On Wed, Feb 14, 2024 at 02:33:14PM +0800, Inochi Amaoto wrote: > CV18XX/SG200X series SoCs have a special top misc system controller, > which provides register access for several devices. In addition to > register access, this system controller also contains some subdevices > (such as dmamux). > > Add bindings for top misc controller of CV18XX/SG200X series SoC. > > Signed-off-by: Inochi Amaoto <inochiama@outlook.com> > --- > .../soc/sophgo/sophgo,cv1800-top-syscon.yaml | 40 +++++++++++++++++++ > 1 file changed, 40 insertions(+) > create mode 100644 Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml > > diff --git a/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml b/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml > new file mode 100644 > index 000000000000..619237532801 > --- /dev/null > +++ b/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml > @@ -0,0 +1,40 @@ > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/soc/sophgo/sophgo,cv1800-top-syscon.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Sophgo CV1800/SG2000 SoC top system controller > + > +maintainers: > + - Inochi Amaoto <inochiama@outlook.com> > + > +description: > + The Sophgo CV1800/SG2000 SoC top misc system controller provides > + register access to configure related modules. > + > +properties: > + compatible: > + items: > + - const: sophgo,cv1800-top-syscon > + - const: syscon > + - const: simple-mfd You have to define child nodes to be a simple-mfd. You could drop it, but I now suspect your binding is incomplete. Rob
>On Wed, Feb 14, 2024 at 02:33:14PM +0800, Inochi Amaoto wrote: >> CV18XX/SG200X series SoCs have a special top misc system controller, >> which provides register access for several devices. In addition to >> register access, this system controller also contains some subdevices >> (such as dmamux). >> >> Add bindings for top misc controller of CV18XX/SG200X series SoC. >> >> Signed-off-by: Inochi Amaoto <inochiama@outlook.com> >> --- >> .../soc/sophgo/sophgo,cv1800-top-syscon.yaml | 40 +++++++++++++++++++ >> 1 file changed, 40 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml >> >> diff --git a/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml b/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml >> new file mode 100644 >> index 000000000000..619237532801 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml >> @@ -0,0 +1,40 @@ >> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) >> +%YAML 1.2 >> +--- >> +$id: http://devicetree.org/schemas/soc/sophgo/sophgo,cv1800-top-syscon.yaml# >> +$schema: http://devicetree.org/meta-schemas/core.yaml# >> + >> +title: Sophgo CV1800/SG2000 SoC top system controller >> + >> +maintainers: >> + - Inochi Amaoto <inochiama@outlook.com> >> + >> +description: >> + The Sophgo CV1800/SG2000 SoC top misc system controller provides >> + register access to configure related modules. >> + >> +properties: >> + compatible: >> + items: >> + - const: sophgo,cv1800-top-syscon >> + - const: syscon >> + - const: simple-mfd > >You have to define child nodes to be a simple-mfd. > >You could drop it, but I now suspect your binding is incomplete. > >Rob Hi Rob, I have a small questions: Can I drop "simple-mfd" and just add it when the new subdevice is added? I know the binding is just a example, but it may be better to follow the actual SoC configuration. In addition, most device node should reference this node by using vendor property, and only at most one (or two) subdevices. So adding simple-mfd property can be delayed, dt node itself could be more important. Regards, Inochi
On 16/02/2024 00:56, Inochi Amaoto wrote: >> On Wed, Feb 14, 2024 at 02:33:14PM +0800, Inochi Amaoto wrote: >>> CV18XX/SG200X series SoCs have a special top misc system controller, >>> which provides register access for several devices. In addition to >>> register access, this system controller also contains some subdevices >>> (such as dmamux). >>> >>> Add bindings for top misc controller of CV18XX/SG200X series SoC. >>> >>> Signed-off-by: Inochi Amaoto <inochiama@outlook.com> >>> --- >>> .../soc/sophgo/sophgo,cv1800-top-syscon.yaml | 40 +++++++++++++++++++ >>> 1 file changed, 40 insertions(+) >>> create mode 100644 Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml >>> >>> diff --git a/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml b/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml >>> new file mode 100644 >>> index 000000000000..619237532801 >>> --- /dev/null >>> +++ b/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml >>> @@ -0,0 +1,40 @@ >>> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) >>> +%YAML 1.2 >>> +--- >>> +$id: http://devicetree.org/schemas/soc/sophgo/sophgo,cv1800-top-syscon.yaml# >>> +$schema: http://devicetree.org/meta-schemas/core.yaml# >>> + >>> +title: Sophgo CV1800/SG2000 SoC top system controller >>> + >>> +maintainers: >>> + - Inochi Amaoto <inochiama@outlook.com> >>> + >>> +description: >>> + The Sophgo CV1800/SG2000 SoC top misc system controller provides >>> + register access to configure related modules. >>> + >>> +properties: >>> + compatible: >>> + items: >>> + - const: sophgo,cv1800-top-syscon >>> + - const: syscon >>> + - const: simple-mfd >> >> You have to define child nodes to be a simple-mfd. >> >> You could drop it, but I now suspect your binding is incomplete. >> >> Rob > > Hi Rob, > > I have a small questions: Can I drop "simple-mfd" and just add it > when the new subdevice is added? I know the binding is just a example, No, because bindings should be complete. Best regards, Krzysztof
>On 16/02/2024 00:56, Inochi Amaoto wrote: >>> On Wed, Feb 14, 2024 at 02:33:14PM +0800, Inochi Amaoto wrote: >>>> CV18XX/SG200X series SoCs have a special top misc system controller, >>>> which provides register access for several devices. In addition to >>>> register access, this system controller also contains some subdevices >>>> (such as dmamux). >>>> >>>> Add bindings for top misc controller of CV18XX/SG200X series SoC. >>>> >>>> Signed-off-by: Inochi Amaoto <inochiama@outlook.com> >>>> --- >>>> .../soc/sophgo/sophgo,cv1800-top-syscon.yaml | 40 +++++++++++++++++++ >>>> 1 file changed, 40 insertions(+) >>>> create mode 100644 Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml >>>> >>>> diff --git a/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml b/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml >>>> new file mode 100644 >>>> index 000000000000..619237532801 >>>> --- /dev/null >>>> +++ b/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml >>>> @@ -0,0 +1,40 @@ >>>> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) >>>> +%YAML 1.2 >>>> +--- >>>> +$id: http://devicetree.org/schemas/soc/sophgo/sophgo,cv1800-top-syscon.yaml# >>>> +$schema: http://devicetree.org/meta-schemas/core.yaml# >>>> + >>>> +title: Sophgo CV1800/SG2000 SoC top system controller >>>> + >>>> +maintainers: >>>> + - Inochi Amaoto <inochiama@outlook.com> >>>> + >>>> +description: >>>> + The Sophgo CV1800/SG2000 SoC top misc system controller provides >>>> + register access to configure related modules. >>>> + >>>> +properties: >>>> + compatible: >>>> + items: >>>> + - const: sophgo,cv1800-top-syscon >>>> + - const: syscon >>>> + - const: simple-mfd >>> >>> You have to define child nodes to be a simple-mfd. >>> >>> You could drop it, but I now suspect your binding is incomplete. >>> >>> Rob >> >> Hi Rob, >> >> I have a small questions: Can I drop "simple-mfd" and just add it >> when the new subdevice is added? I know the binding is just a example, > >No, because bindings should be complete. > > >Best regards, >Krzysztof > Thanks. And please see https://lore.kernel.org/linux-kernel/PH7PR20MB49624AFE44E26F26490DC827BB502@PH7PR20MB4962.namprd20.prod.outlook.com/T/#t. This new patch series includes this binding.
diff --git a/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml b/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml new file mode 100644 index 000000000000..619237532801 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml @@ -0,0 +1,40 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/soc/sophgo/sophgo,cv1800-top-syscon.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Sophgo CV1800/SG2000 SoC top system controller + +maintainers: + - Inochi Amaoto <inochiama@outlook.com> + +description: + The Sophgo CV1800/SG2000 SoC top misc system controller provides + register access to configure related modules. + +properties: + compatible: + items: + - const: sophgo,cv1800-top-syscon + - const: syscon + - const: simple-mfd + + reg: + maxItems: 1 + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + syscon@3000000 { + compatible = "sophgo,cv1800-top-syscon", + "syscon", "simple-mfd"; + reg = <0x03000000 0x1000>; + }; + +...
CV18XX/SG200X series SoCs have a special top misc system controller, which provides register access for several devices. In addition to register access, this system controller also contains some subdevices (such as dmamux). Add bindings for top misc controller of CV18XX/SG200X series SoC. Signed-off-by: Inochi Amaoto <inochiama@outlook.com> --- .../soc/sophgo/sophgo,cv1800-top-syscon.yaml | 40 +++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml -- 2.43.1