[PATCHv4,0/3] generic-ohci/ehci: add RK3588 support

Hi,

This increases the max. allowed clocks for generic-ohci from 3 to 4.
On RK3588 a total of 4 clocks is required to access the OHCI registers.
EHCI already supports 4 clocks.

Changes since PATCHv3:
 * https://lore.kernel.org/all/20230406135552.23980-1-sebastian.reichel@collabora.com/
 * Fix the PATCH version in the patchset subjects :)
 * Collect Rob Herrings's Reviewed-by
 * Drop maxItems = 4 from rockchip,rk3588-ohci = true branch (4 is the default value)
 * Drop minItems = 1 from rockchip,rk3588-ohci = false branch (1 is the default value)

Changes since PATCHv2:
 * https://lore.kernel.org/all/20230404145350.45388-1-sebastian.reichel@collabora.com/
 * Added Krzysztof's Ack to the EHCI binding update
 * Changed OHCI binding update according to Krzysztof's feedback

Changes since PATCHv1:
 * https://lore.kernel.org/all/20230331163148.5863-1-sebastian.reichel@collabora.com/
 * changed cover-letter subject
 * Add Alan's Acked-by to the driver patch increasing the clock count
 * Update bindings, adding rockchip,rk3588-ohci and rockchip,rk3588-ehci compatibles

-- Sebastian

Sebastian Reichel (3):
  dt-bindings: usb: Add RK3588 OHCI
  dt-bindings: usb: Add RK3588 EHCI
  usb: host: ohci-platform: increase max clock number to 4

 .../devicetree/bindings/usb/generic-ehci.yaml    |  1 +
 .../devicetree/bindings/usb/generic-ohci.yaml    | 16 +++++++++++++++-
 drivers/usb/host/ohci-platform.c                 |  2 +-
 3 files changed, 17 insertions(+), 2 deletions(-)

On Thu, 13 Apr 2023 19:31:48 +0200, Sebastian Reichel wrote:
> Add compatible for RK3588 OHCI. As far as I know it's fully
> compatible with generic-ohci.
> 
> Reviewed-by: Rob Herring <robh@kernel.org>
> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
> ---
>  .../devicetree/bindings/usb/generic-ohci.yaml    | 16 +++++++++++++++-
>  1 file changed, 15 insertions(+), 1 deletion(-)
> 

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/usb/generic-ohci.example.dtb: usb@1c14400: clocks: [[4294967295, 6], [4294967295, 2]] is too short
	From schema: /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/usb/generic-ohci.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20230413173150.71387-2-sebastian.reichel@collabora.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 13/04/2023 19:31, Sebastian Reichel wrote:
> Add compatible for RK3588 OHCI. As far as I know it's fully
> compatible with generic-ohci.
> 
> Reviewed-by: Rob Herring <robh@kernel.org>
> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

Sebastian,

Can you fix PATCH subject part in all your submissions? There should be
a space between PATCH and v. Just like `git format-patch` creates. If
you use other tools for this, fix them so they don't create other format.

You also need to rebase your patches - this is something old and cannot
be applied.

> ---
>  .../devicetree/bindings/usb/generic-ohci.yaml    | 16 +++++++++++++++-
>  1 file changed, 15 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/usb/generic-ohci.yaml b/Documentation/devicetree/bindings/usb/generic-ohci.yaml
> index a9ba7257b884..4feb993af53b 100644
> --- a/Documentation/devicetree/bindings/usb/generic-ohci.yaml
> +++ b/Documentation/devicetree/bindings/usb/generic-ohci.yaml
> @@ -44,6 +44,7 @@ properties:
>                - hpe,gxp-ohci
>                - ibm,476gtr-ohci
>                - ingenic,jz4740-ohci
> +              - rockchip,rk3588-ohci
>                - snps,hsdk-v1.0-ohci
>            - const: generic-ohci
>        - enum:
> @@ -69,7 +70,7 @@ properties:
>  
>    clocks:
>      minItems: 1
> -    maxItems: 3
> +    maxItems: 4
>      description: |
>        In case the Renesas R-Car Gen3 SoCs:
>          - if a host only channel: first clock should be host.
> @@ -147,6 +148,19 @@ allOf:
>      then:
>        properties:
>          transceiver: false
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: rockchip,rk3588-ohci
> +    then:
> +      properties:
> +        clocks:
> +          minItems: 4
> +    else:
> +      properties:
> +        clocks:

Please test the patches before sending. If you tested, you would see
warnings here.

You need minItems: 1.

> +          maxItems: 3
>  
>  additionalProperties: false
>  

Best regards,
Krzysztof