On 16:55-20210416, Stephen Boyd wrote: > Quoting Nishanth Menon (2021-04-15 23:37:19) > > diff --git a/Documentation/devicetree/bindings/clock/ti,sci-clk.yaml b/Documentation/devicetree/bindings/clock/ti,sci-clk.yaml > > new file mode 100644 > > index 000000000000..72633651f0c7 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/clock/ti,sci-clk.yaml > > @@ -0,0 +1,52 @@ > > +# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause) > > +%YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/clock/ti,sci-clk.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: TI-SCI clock controller node bindings > > + > > +maintainers: > > + - Nishanth Menon <nm@xxxxxx> > > + > > +allOf: > > + - $ref: /schemas/clock/clock.yaml# > > Is this needed? https://github.com/devicetree-org/dt-schema/blob/master/schemas/clock/clock.yaml This standardizes provider properties like '#clock-cells' etc, allowing you to add more stricter checks or controls in the future if necessary. while: https://github.com/devicetree-org/dt-schema/blob/master/meta-schemas/clocks.yaml is more a consumer node description. Should I have picked a different yaml as base for a standard clock-controller base? > > > + > > +description: | > > + Some TI SoCs contain a system controller (like the Power Management Micro > > + Controller (PMMC) on Keystone 66AK2G SoC) that are responsible for controlling > > + the state of the various hardware modules present on the SoC. Communication > > + between the host processor running an OS and the system controller happens > > + through a protocol called TI System Control Interface (TI-SCI protocol). > > + > > + This clock controller node uses the TI SCI protocol to perform various clock > > + management of various hardware modules (devices) present on the SoC. This > > + node must be a child node of the associated TI-SCI system controller node. > > + > > +properties: > > + $nodename: > > + pattern: "^clock-controller$" > > Is this nodename pattern check required? I'd like the definition on rails and not subject to interpretation, and restrict the kind of subnodes under TISCI controller node. > > > + > > + compatible: > > + const: ti,k2g-sci-clk > > I thought most things keyed off the compatible string. Yes, they are. I am not sure I understand your question here. Did you mean to indicate that having $nodename and compatible both are redundant? Redundancy was'nt the intent of this schema definition, rather, I'd like to make sure that it is not upto interpretation or debate as to what the node name should be: I believe clock-controller is the correct nodename (without @0x... since this does'nt use reg property) instead of using clocks, tisci-clock as the node names. Do you suggest something different? -- Regards, Nishanth Menon Key (0xDDB5849D1736249D)/Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D
