| Message ID | 20230424195402.516-3-jm@ti.com |
|---|---|
| State | New |
| Headers | show |
| Series | Enable multiple MCAN on AM62x | expand |
On Mon, 24 Apr 2023 14:54:00 -0500, Judith Mendez wrote: > On AM62x SoC, MCANs on MCU domain do not have hardware interrupt > routed to A53 Linux, instead they will use software interrupt by > hrtimer. To enable timer method, interrupts should be optional so > remove interrupts property from required section and introduce > poll-interval property. > > Signed-off-by: Judith Mendez <jm@ti.com> > --- > Changelog: > v2: > 1. Add poll-interval property to enable timer polling method > 2. Add example using poll-interval property > > .../bindings/net/can/bosch,m_can.yaml | 26 ++++++++++++++++--- > 1 file changed, 23 insertions(+), 3 deletions(-) > 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/dt-review-ci/linux/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml: 'example with interrupts' is not one of ['$id', '$schema', 'title', 'description', 'examples', 'required', 'allOf', 'anyOf', 'oneOf', 'definitions', '$defs', 'additionalProperties', 'dependencies', 'dependentRequired', 'dependentSchemas', 'patternProperties', 'properties', 'not', 'if', 'then', 'else', 'unevaluatedProperties', 'deprecated', 'maintainers', 'select', '$ref'] from schema $id: http://devicetree.org/meta-schemas/base.yaml# /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml: 'example with timer polling' is not one of ['$id', '$schema', 'title', 'description', 'examples', 'required', 'allOf', 'anyOf', 'oneOf', 'definitions', '$defs', 'additionalProperties', 'dependencies', 'dependentRequired', 'dependentSchemas', 'patternProperties', 'properties', 'not', 'if', 'then', 'else', 'unevaluatedProperties', 'deprecated', 'maintainers', 'select', '$ref'] from schema $id: http://devicetree.org/meta-schemas/base.yaml# doc reference errors (make refcheckdocs): See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20230424195402.516-3-jm@ti.com The base for the series is generally the latest rc1. A different dependency should be noted in *this* patch. 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 after running the above command yourself. Note that DT_SCHEMA_FILES can be set to your schema file to speed up checking your schema. However, it must be unset to test all examples with your schema.
On 14:54-20230424, Judith Mendez wrote: > On AM62x SoC, MCANs on MCU domain do not have hardware interrupt > routed to A53 Linux, instead they will use software interrupt by > hrtimer. To enable timer method, interrupts should be optional so > remove interrupts property from required section and introduce > poll-interval property. > > Signed-off-by: Judith Mendez <jm@ti.com> > --- > Changelog: > v2: > 1. Add poll-interval property to enable timer polling method > 2. Add example using poll-interval property > > .../bindings/net/can/bosch,m_can.yaml | 26 ++++++++++++++++--- > 1 file changed, 23 insertions(+), 3 deletions(-) > > diff --git a/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml b/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml > index 67879aab623b..1c64c7a0c3df 100644 > --- a/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml > +++ b/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml > @@ -40,6 +40,10 @@ properties: > - const: int1 > minItems: 1 > > + poll-interval: > + $ref: /schemas/types.yaml#/definitions/flag > + description: Poll interval time in milliseconds. > + > clocks: > items: > - description: peripheral clock > @@ -122,15 +126,13 @@ required: > - compatible > - reg > - reg-names > - - interrupts > - - interrupt-names > - clocks > - clock-names > - bosch,mram-cfg > > additionalProperties: false > > -examples: > +example with interrupts: > - | > #include <dt-bindings/clock/imx6sx-clock.h> > can@20e8000 { > @@ -149,4 +151,22 @@ examples: > }; > }; > > +example with timer polling: did you run dt_binding_check? make -j`nproc` ARCH=arm64 LLVM=1 dt_binding_check DT_CHECKER_FLAGS=-m DT_SCHEMA_FILES=Documentation/devicetree/bindings/net/can/bosch,m_can.yaml tells me: LINT Documentation/devicetree/bindings DTEX Documentation/devicetree/bindings/net/can/bosch,m_can.example.dts CHKDT Documentation/devicetree/bindings/processed-schema.json /workdir/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml: 'example with interrupts' is not one of ['$id', '$schema', 'title', 'description', 'examples', 'required', 'allOf', 'anyOf', 'oneOf', 'definitions', '$defs', 'additionalProperties', 'dependencies', 'dependentRequired', 'dependentSchemas', 'patternProperties', 'properties', 'not', 'if', 'then', 'else', 'unevaluatedProperties', 'deprecated', 'maintainers', 'select', '$ref'] from schema $id: http://devicetree.org/meta-schemas/base.yaml# /workdir/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml: 'example with timer polling' is not one of ['$id', '$schema', 'title', 'description', 'examples', 'required', 'allOf', 'anyOf', 'oneOf', 'definitions', '$defs', 'additionalProperties', 'dependencies', 'dependentRequired', 'dependentSchemas', 'patternProperties', 'properties', 'not', 'if', 'then', 'else', 'unevaluatedProperties', 'deprecated', 'maintainers', 'select', '$ref'] from schema $id: http://devicetree.org/meta-schemas/base.yaml# > + - | > + #include <dt-bindings/clock/imx6sx-clock.h> > + can@20e8000 { > + compatible = "bosch,m_can"; > + reg = <0x020e8000 0x4000>, <0x02298000 0x4000>; > + reg-names = "m_can", "message_ram"; > + poll-interval; > + clocks = <&clks IMX6SX_CLK_CANFD>, > + <&clks IMX6SX_CLK_CANFD>; > + clock-names = "hclk", "cclk"; > + bosch,mram-cfg = <0x0 0 0 32 0 0 0 1>; > + > + can-transceiver { > + max-bitrate = <5000000>; > + }; > + }; > + > ... > -- > 2.17.1 >
Hello Rob, On 4/24/2023 7:13 PM, Rob Herring wrote: > > On Mon, 24 Apr 2023 14:54:00 -0500, Judith Mendez wrote: >> On AM62x SoC, MCANs on MCU domain do not have hardware interrupt >> routed to A53 Linux, instead they will use software interrupt by >> hrtimer. To enable timer method, interrupts should be optional so >> remove interrupts property from required section and introduce >> poll-interval property. >> >> Signed-off-by: Judith Mendez <jm@ti.com> >> --- >> Changelog: >> v2: >> 1. Add poll-interval property to enable timer polling method >> 2. Add example using poll-interval property >> >> .../bindings/net/can/bosch,m_can.yaml | 26 ++++++++++++++++--- >> 1 file changed, 23 insertions(+), 3 deletions(-) >> > > My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check' > on your patch (DT_CHECKER_FLAGS is new in v5.13): > > yamllint warnings/errors: > > dtschema/dtc warnings/errors: > /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml: 'example with interrupts' is not one of ['$id', '$schema', 'title', 'description', 'examples', 'required', 'allOf', 'anyOf', 'oneOf', 'definitions', '$defs', 'additionalProperties', 'dependencies', 'dependentRequired', 'dependentSchemas', 'patternProperties', 'properties', 'not', 'if', 'then', 'else', 'unevaluatedProperties', 'deprecated', 'maintainers', 'select', '$ref'] > from schema $id: http://devicetree.org/meta-schemas/base.yaml# > /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml: 'example with timer polling' is not one of ['$id', '$schema', 'title', 'description', 'examples', 'required', 'allOf', 'anyOf', 'oneOf', 'definitions', '$defs', 'additionalProperties', 'dependencies', 'dependentRequired', 'dependentSchemas', 'patternProperties', 'properties', 'not', 'if', 'then', 'else', 'unevaluatedProperties', 'deprecated', 'maintainers', 'select', '$ref'] > from schema $id: http://devicetree.org/meta-schemas/base.yaml# > > doc reference errors (make refcheckdocs): > > See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20230424195402.516-3-jm@ti.com > > The base for the series is generally the latest rc1. A different dependency > should be noted in *this* patch. > > 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 after running the above command yourself. Note > that DT_SCHEMA_FILES can be set to your schema file to speed up checking > your schema. However, it must be unset to test all examples with your schema. Thanks Rob, I was not getting the errors, but I have fixed now. Thanks. regards, Judith
diff --git a/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml b/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml index 67879aab623b..1c64c7a0c3df 100644 --- a/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml +++ b/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml @@ -40,6 +40,10 @@ properties: - const: int1 minItems: 1 + poll-interval: + $ref: /schemas/types.yaml#/definitions/flag + description: Poll interval time in milliseconds. + clocks: items: - description: peripheral clock @@ -122,15 +126,13 @@ required: - compatible - reg - reg-names - - interrupts - - interrupt-names - clocks - clock-names - bosch,mram-cfg additionalProperties: false -examples: +example with interrupts: - | #include <dt-bindings/clock/imx6sx-clock.h> can@20e8000 { @@ -149,4 +151,22 @@ examples: }; }; +example with timer polling: + - | + #include <dt-bindings/clock/imx6sx-clock.h> + can@20e8000 { + compatible = "bosch,m_can"; + reg = <0x020e8000 0x4000>, <0x02298000 0x4000>; + reg-names = "m_can", "message_ram"; + poll-interval; + clocks = <&clks IMX6SX_CLK_CANFD>, + <&clks IMX6SX_CLK_CANFD>; + clock-names = "hclk", "cclk"; + bosch,mram-cfg = <0x0 0 0 32 0 0 0 1>; + + can-transceiver { + max-bitrate = <5000000>; + }; + }; + ...
On AM62x SoC, MCANs on MCU domain do not have hardware interrupt routed to A53 Linux, instead they will use software interrupt by hrtimer. To enable timer method, interrupts should be optional so remove interrupts property from required section and introduce poll-interval property. Signed-off-by: Judith Mendez <jm@ti.com> --- Changelog: v2: 1. Add poll-interval property to enable timer polling method 2. Add example using poll-interval property .../bindings/net/can/bosch,m_can.yaml | 26 ++++++++++++++++--- 1 file changed, 23 insertions(+), 3 deletions(-)