On Wed, 20 Oct 2021 11:36:03 +0200, Heinrich Schuchardt wrote: > The CLINT in the T-HEAD 9xx CPUs is similar to the SiFive CLINT but does > not support 64bit mmio access to the MTIMER device. > > OpenSBI currently uses a property 'clint,has-no-64bit-mmio' to indicate the > restriction and the "sifive,cling0" compatible string. An OpenSBI > patch suggested to use "reg-io-width = <4>;" as the reg-io-width property > is generally used in the devicetree schema for such a condition. > > As the design is not SiFive based it is preferable to apply a compatible > string identifying T-HEAD instead. > > Add a new yaml file describing the T-HEAD CLINT. > > Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@xxxxxxxxxxxxx> > --- > @Palmer, @Anup > I copied you as maintainers from sifive,clint.yaml. Please, indicate if > this should be changed. > > For the prior discussion see: > https://lore.kernel.org/all/20211015100941.17621-1-heinrich.schuchardt@xxxxxxxxxxxxx/ > https://lore.kernel.org/all/20211015120735.27972-1-heinrich.schuchardt@xxxxxxxxxxxxx/ > > A release candidate of the ACLINT specification is available at > https://github.com/riscv/riscv-aclint/releases > --- > .../bindings/timer/thead,clint.yaml | 62 +++++++++++++++++++ > 1 file changed, 62 insertions(+) > create mode 100644 Documentation/devicetree/bindings/timer/thead,clint.yaml > My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check' on your patch (DT_CHECKER_FLAGS is new in v5.13): yamllint warnings/errors: dtschema/dtc warnings/errors: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/timer/thead,clint.yaml: properties:compatible:items: 'oneOf' conditional failed, one must be fixed: [{'const': ['allwinner,sun20i-d1-clint']}, {'const': ['thead,clint0']}] is not of type 'object' ['allwinner,sun20i-d1-clint'] is not of type 'string' ['thead,clint0'] is not of type 'string' from schema $id: http://devicetree.org/meta-schemas/string-array.yaml# /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/timer/thead,clint.yaml: ignoring, error in schema: properties: compatible: items warning: no schema found in file: ./Documentation/devicetree/bindings/timer/thead,clint.yaml Documentation/devicetree/bindings/timer/thead,clint.example.dt.yaml:0:0: /example-0/timer@2000000: failed to match any schema with compatible: ['allwinner,sun20i-d1-clint', 'thead,clint0'] Documentation/devicetree/bindings/timer/thead,clint.example.dt.yaml:0:0: /example-0/timer@2000000: failed to match any schema with compatible: ['allwinner,sun20i-d1-clint', 'thead,clint0'] doc reference errors (make refcheckdocs): See https://patchwork.ozlabs.org/patch/1543771 This check can fail if there are any dependencies. The base for a patch series is generally the most recent rc1. If you already ran 'make dt_binding_check' and didn't see the above error(s), then make sure 'yamllint' is installed and dt-schema is up to date: pip3 install dtschema --upgrade Please check and re-submit.
