| Message ID | 20230810145443.1053387-2-privatesub2@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add support for Allwinner PWM on D1/T113s/R329 SoCs | expand |
On Thu, Aug 10, 2023 at 05:54:26PM +0300, Aleksandr Shubin wrote: > +allOf: > + - $ref: pwm.yaml# > + > + - if: > + properties: > + compatible: > + contains: > + const: allwinner,sun20i-r329-pwm > + > + then: > + required: > + - allwinner,pwm-channels > + > + else: > + not: > + required: > + - allwinner,pwm-channels Hmm, I realise I lead you astray a little. This can be reduced to else: properties: allwinner,pwm-channels: false If you respin, please update to that. Otherwise, Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Thanks, Conor.
On Thu, 10 Aug 2023 17:54:26 +0300, Aleksandr Shubin wrote: > Allwinner's D1, T113-S3 and R329 SoCs have a new pwm > controller witch is different from the previous pwm-sun4i. > > The D1 and T113 are identical in terms of peripherals, > they differ only in the architecture of the CPU core, and > even share the majority of their DT. Because of that, > using the same compatible makes sense. > The R329 is a different SoC though, and should have > a different compatible string added, especially as there > is a difference in the number of channels. > > D1 and T113s SoCs have one PWM controller with 8 channels. > R329 SoC has two PWM controllers in both power domains, one of > them has 9 channels (CPUX one) and the other has 6 (CPUS one). > > Add a device tree binding for them. > > Signed-off-by: Aleksandr Shubin <privatesub2@gmail.com> > --- > .../bindings/pwm/allwinner,sun20i-pwm.yaml | 86 +++++++++++++++++++ > 1 file changed, 86 insertions(+) > create mode 100644 Documentation/devicetree/bindings/pwm/allwinner,sun20i-pwm.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: doc reference errors (make refcheckdocs): See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20230810145443.1053387-2-privatesub2@gmail.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 Thu, Aug 10, 2023 at 10:21:30AM -0600, Rob Herring wrote: > > On Thu, 10 Aug 2023 17:54:26 +0300, Aleksandr Shubin wrote: > > Allwinner's D1, T113-S3 and R329 SoCs have a new pwm > > controller witch is different from the previous pwm-sun4i. > > > > The D1 and T113 are identical in terms of peripherals, > > they differ only in the architecture of the CPU core, and > > even share the majority of their DT. Because of that, > > using the same compatible makes sense. > > The R329 is a different SoC though, and should have > > a different compatible string added, especially as there > > is a difference in the number of channels. > > > > D1 and T113s SoCs have one PWM controller with 8 channels. > > R329 SoC has two PWM controllers in both power domains, one of > > them has 9 channels (CPUX one) and the other has 6 (CPUS one). > > > > Add a device tree binding for them. > > > > Signed-off-by: Aleksandr Shubin <privatesub2@gmail.com> > > --- > > .../bindings/pwm/allwinner,sun20i-pwm.yaml | 86 +++++++++++++++++++ > > 1 file changed, 86 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/pwm/allwinner,sun20i-pwm.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: > > > doc reference errors (make refcheckdocs): > > See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20230810145443.1053387-2-privatesub2@gmail.com The bot was having an issue. This can be ignored. Rob
diff --git a/Documentation/devicetree/bindings/pwm/allwinner,sun20i-pwm.yaml b/Documentation/devicetree/bindings/pwm/allwinner,sun20i-pwm.yaml new file mode 100644 index 000000000000..4e6eaa18f342 --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/allwinner,sun20i-pwm.yaml @@ -0,0 +1,86 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pwm/allwinner,sun20i-pwm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Allwinner D1, T113-S3 and R329 PWM + +maintainers: + - Aleksandr Shubin <privatesub2@gmail.com> + +properties: + compatible: + oneOf: + - const: allwinner,sun20i-d1-pwm + - items: + - const: allwinner,sun20i-r329-pwm + - const: allwinner,sun20i-d1-pwm + + reg: + maxItems: 1 + + "#pwm-cells": + const: 3 + + clocks: + items: + - description: 24 MHz oscillator + - description: Bus Clock + + clock-names: + items: + - const: hosc + - const: bus + + resets: + maxItems: 1 + + allwinner,pwm-channels: + $ref: /schemas/types.yaml#/definitions/uint32 + description: The number of PWM channels configured for this instance + enum: [6, 9] + +allOf: + - $ref: pwm.yaml# + + - if: + properties: + compatible: + contains: + const: allwinner,sun20i-r329-pwm + + then: + required: + - allwinner,pwm-channels + + else: + not: + required: + - allwinner,pwm-channels + +unevaluatedProperties: false + +required: + - compatible + - reg + - "#pwm-cells" + - clocks + - clock-names + - resets + +examples: + - | + #include <dt-bindings/clock/sun20i-d1-ccu.h> + #include <dt-bindings/reset/sun20i-d1-ccu.h> + + pwm: pwm@2000c00 { + compatible = "allwinner,sun20i-d1-pwm"; + reg = <0x02000c00 0x400>; + clocks = <&dcxo>, <&ccu CLK_BUS_PWM>; + clock-names = "hosc", "bus"; + resets = <&ccu RST_BUS_PWM>; + #pwm-cells = <0x3>; + }; + +...
Allwinner's D1, T113-S3 and R329 SoCs have a new pwm controller witch is different from the previous pwm-sun4i. The D1 and T113 are identical in terms of peripherals, they differ only in the architecture of the CPU core, and even share the majority of their DT. Because of that, using the same compatible makes sense. The R329 is a different SoC though, and should have a different compatible string added, especially as there is a difference in the number of channels. D1 and T113s SoCs have one PWM controller with 8 channels. R329 SoC has two PWM controllers in both power domains, one of them has 9 channels (CPUX one) and the other has 6 (CPUS one). Add a device tree binding for them. Signed-off-by: Aleksandr Shubin <privatesub2@gmail.com> --- .../bindings/pwm/allwinner,sun20i-pwm.yaml | 86 +++++++++++++++++++ 1 file changed, 86 insertions(+) create mode 100644 Documentation/devicetree/bindings/pwm/allwinner,sun20i-pwm.yaml