linux-kernel - Re: Re: [RFC v3 1/5] dt-bindings: phy: rockchip: add PCIe v3 phy

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Date:   Mon, 16 May 2022 12:35:37 -0500
From:   Rob Herring <robh@...nel.org>
To:     Frank Wunderlich <frank-w@...lic-files.de>
Cc:     Frank Wunderlich <linux@...web.de>,
        Michael Riesch <michael.riesch@...fvision.net>,
        Vinod Koul <vkoul@...nel.org>,
        Johan Jonker <jbx6244@...il.com>,
        linux-rockchip@...ts.infradead.org, linux-pci@...r.kernel.org,
        Kishon Vijay Abraham I <kishon@...com>,
        linux-kernel@...r.kernel.org, linux-phy@...ts.infradead.org,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Peter Geis <pgwipeout@...il.com>,
        Heiko Stuebner <heiko@...ech.de>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        Krzysztof Wilczyński <kw@...ux.com>
Subject: Re: Re: [RFC v3 1/5] dt-bindings: phy: rockchip: add PCIe v3 phy

On Sun, May 15, 2022 at 01:49:47PM +0200, Frank Wunderlich wrote:
> Hi
> 
> > Gesendet: Sonntag, 15. Mai 2022 um 01:14 Uhr
> > Von: "Rob Herring" <robh@...nel.org>
> 
> > On Sat, 14 May 2022 13:59:42 +0200, Frank Wunderlich wrote:
> > > From: Frank Wunderlich <frank-w@...lic-files.de>
> > >
> > > Add a new binding file for Rockchip PCIe v3 phy driver.
> > >
> > > Signed-off-by: Frank Wunderlich <frank-w@...lic-files.de>
> > >
> > > ---
> > > v3:
> > > - drop quotes
> > > - drop rk3588
> > > - make clockcount fixed to 3
> > > - full path for binding header file
> > > - drop phy-mode and its header and add lane-map
> > >
> > > v2:
> > > dt-bindings: rename yaml for PCIe v3
> > > rockchip-pcie3-phy.yaml => rockchip,pcie3-phy.yaml
> > >
> > > changes in pcie3 phy yaml
> > > - change clock names to ordered const list
> > > - extend pcie30-phymode description
> > > - add phy-cells to required properties
> > > - drop unevaluatedProperties
> > > - example with 1 clock each line
> > > - use default property instead of text describing it
> > > - update license
> > > ---
> > >  .../bindings/phy/rockchip,pcie3-phy.yaml      | 82 +++++++++++++++++++
> > >  1 file changed, 82 insertions(+)
> > >  create mode 100644 Documentation/devicetree/bindings/phy/rockchip,pcie3-phy.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/phy/rockchip,pcie3-phy.yaml: properties:clock-names: 'oneOf' conditional failed, one must be fixed:
> > 	[{'const': 'refclk_m'}, {'const': 'refclk_n'}, {'const': 'pclk'}] is too long
> > 	[{'const': 'refclk_m'}, {'const': 'refclk_n'}, {'const': 'pclk'}] is too short
> > 	False schema does not allow 3
> > 	1 was expected
> > 	3 is greater than the maximum of 2
> > 	hint: "minItems" is only needed if less than the "items" list length
> > 	from schema $id: http://devicetree.org/meta-schemas/items.yaml#
> > /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/phy/rockchip,pcie3-phy.yaml: ignoring, error in schema: properties: clock-names
> > Documentation/devicetree/bindings/phy/rockchip,pcie3-phy.example.dtb:0:0: /example-0/phy@...c0000: failed to match any schema with compatible: ['rockchip,rk3568-pcie3-phy']
> 
> seems this is fixed when i remove the "minItems: 3" from clock names 
> (which is already fixed length because of the list).

Yes.

> needed to change type of lane-map to this:
> 
> $ref: /schemas/types.yaml#/definitions/uint8-array

Why? That's not a standard property though, so needs a 'rockchip' 
prefix. Though maybe a common property would be appropriate here.

> then it looks clean for it....
> 
> -m causes many errors unrelated to this schema-file even if i pass
> DT_SCHEMA_FILES=Documentation/devicetree/bindings/phy/rockchip,pcie3-phy.yaml

The fix is fixing the remaining 40 or so '-m' errors.

Rob