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Message-Id: <167931771710.1430059.457411418248576558.robh@kernel.org>
Date:   Mon, 20 Mar 2023 08:11:18 -0500
From:   Rob Herring <robh@...nel.org>
To:     Roger Quadros <rogerq@...nel.org>
Cc:     stern@...land.harvard.edu, vigneshr@...com,
        devicetree@...r.kernel.org, Thinh.Nguyen@...opsys.com,
        gregkh@...uxfoundation.org, srk@...com, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org, r-gunasekaran@...com
Subject: Re: [RFC PATCH 1/2] dt-bindings: usb: snps,dwc3: Add
 'snps,gadget-keep-connect-sys-sleep'


On Mon, 20 Mar 2023 11:34:46 +0200, Roger Quadros wrote:
> The current USB gadget driver behaviour is to stop the controller
> and disconnect from the bus during System sleep.
> 
> The 'snps,gadget-keep-connect-sys-sleep' property can be used to
> change this behaviour and keep the controller active and connected
> to the bus during System sleep. This is useful for applications
> that want to enter a low power state when USB is suspended but
> remain connected so they can resume activity on USB resume.
> 
> This feature introduces a new constraint if Gadget driver is connected
> to USB host: i.e.  the gadget must be in USB suspend state to allow
> a System sleep as we cannot process any USB transactions
> when in System sleep.
> 
> The system hardware is responsible to detect the end of USB suspend
> and wake up the system so we can begin processing the USB transactions
> as soon as possible.
> 
> Cc: devicetree@...r.kernel.org
> Signed-off-by: Roger Quadros <rogerq@...nel.org>
> ---
>  Documentation/devicetree/bindings/usb/snps,dwc3.yaml | 5 +++++
>  1 file changed, 5 insertions(+)
> 

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:
./Documentation/devicetree/bindings/usb/samsung,exynos-dwc3.yaml: Error in referenced schema matching $id: http://devicetree.org/schemas/usb/snps,dwc3.yaml
./Documentation/devicetree/bindings/usb/intel,keembay-dwc3.yaml: Error in referenced schema matching $id: http://devicetree.org/schemas/usb/snps,dwc3.yaml
./Documentation/devicetree/bindings/usb/rockchip,dwc3.yaml: Error in referenced schema matching $id: http://devicetree.org/schemas/usb/snps,dwc3.yaml
./Documentation/devicetree/bindings/usb/qcom,dwc3.yaml: Error in referenced schema matching $id: http://devicetree.org/schemas/usb/snps,dwc3.yaml
./Documentation/devicetree/bindings/usb/rockchip,rk3399-dwc3.yaml: Error in referenced schema matching $id: http://devicetree.org/schemas/usb/snps,dwc3.yaml
./Documentation/devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml: Error in referenced schema matching $id: http://devicetree.org/schemas/usb/snps,dwc3.yaml
./Documentation/devicetree/bindings/usb/ti,keystone-dwc3.yaml: Error in referenced schema matching $id: http://devicetree.org/schemas/usb/snps,dwc3.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/usb/snps,dwc3.yaml: properties:snps,gadget-keep-connect-sys-sleep: 'oneOf' conditional failed, one must be fixed:
	'type' is a required property
		hint: A vendor boolean property can use "type: boolean"
	/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/usb/snps,dwc3.yaml: properties:snps,gadget-keep-connect-sys-sleep: 'oneOf' conditional failed, one must be fixed:
		'enum' is a required property
		'const' is a required property
		hint: A vendor string property with exact values has an implicit type
		from schema $id: http://devicetree.org/meta-schemas/vendor-props.yaml#
	/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/usb/snps,dwc3.yaml: properties:snps,gadget-keep-connect-sys-sleep: 'oneOf' conditional failed, one must be fixed:
		'$ref' is a required property
		'allOf' is a required property
		hint: A vendor property needs a $ref to types.yaml
		from schema $id: http://devicetree.org/meta-schemas/vendor-props.yaml#
	hint: Vendor specific properties must have a type and description unless they have a defined, common suffix.
	from schema $id: http://devicetree.org/meta-schemas/vendor-props.yaml#
./Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml: Error in referenced schema matching $id: http://devicetree.org/schemas/usb/snps,dwc3.yaml
./Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml: Error in referenced schema matching $id: http://devicetree.org/schemas/usb/snps,dwc3.yaml
./Documentation/devicetree/bindings/usb/ti,am62-usb.yaml: Error in referenced schema matching $id: http://devicetree.org/schemas/usb/snps,dwc3.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20230320093447.32105-2-rogerq@kernel.org

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.

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