linux-kernel - Re: [PATCH 1/3] dt-bindings: pci: ti,j721e: Fix "ti,syscon-pcie-ctrl" to take argument

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Date:   Fri, 20 Nov 2020 10:39:19 +0530
From:   Kishon Vijay Abraham I <kishon@...com>
To:     Rob Herring <robh@...nel.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>
CC:     Tero Kristo <t-kristo@...com>, Nishanth Menon <nm@...com>,
        Tom Joseph <tjoseph@...ence.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        <linux-omap@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-pci@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/3] dt-bindings: pci: ti,j721e: Fix "ti,syscon-pcie-ctrl"
 to take argument

Hi Rob,

On 19/11/20 2:41 am, Rob Herring wrote:
> On Mon, Nov 16, 2020 at 11:01:39PM +0530, Kishon Vijay Abraham I wrote:
>> Fix binding documentation of "ti,syscon-pcie-ctrl" to take phandle with
>> argument. The argument is the register offset within "syscon" used to
>> configure PCIe controller.
>>
>> Link: Link: http://lore.kernel.org/r/CAL_JsqKiUcO76bo1GoepWM1TusJWoty_BRy2hFSgtEVMqtrvvQ@mail.gmail.com
> 
> Link: Link: ?
> 
> AIUI, 'Link' is supposed to be a link to this patch. I guess more than 1 
> Link would be okay though.

Two Links was a typo, will fix it in the next revision. Nishanth as well
was asking about using "Link:" tag for a mailing list discussion.

I started using it after Lorenzo had asked me to use Link tag for
mailing list discussion here sometime back.

https://patchwork.kernel.org/project/linux-pci/patch/20171219083627.7904-1-kishon@ti.com/#21350261

> 
>> Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
>> ---
>>  .../devicetree/bindings/pci/ti,j721e-pci-ep.yaml     | 12 ++++++++----
>>  .../devicetree/bindings/pci/ti,j721e-pci-host.yaml   | 12 ++++++++----
>>  2 files changed, 16 insertions(+), 8 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/pci/ti,j721e-pci-ep.yaml b/Documentation/devicetree/bindings/pci/ti,j721e-pci-ep.yaml
>> index 3ae3e1a2d4b0..e9685c0bdc3e 100644
>> --- a/Documentation/devicetree/bindings/pci/ti,j721e-pci-ep.yaml
>> +++ b/Documentation/devicetree/bindings/pci/ti,j721e-pci-ep.yaml
>> @@ -29,9 +29,13 @@ properties:
>>        - const: mem
>>  
>>    ti,syscon-pcie-ctrl:
>> -    description: Phandle to the SYSCON entry required for configuring PCIe mode
>> -                 and link speed.
>> -    $ref: /schemas/types.yaml#/definitions/phandle
>> +    allOf:
> 
> You no longer need allOf here.

hmm, don't we need it for specifying phandle with fixed cells? FWIW, I
was referring

https://github.com/devicetree-org/dt-schema/blob/master/test/schemas/good-example.yaml#L187

Thank You,
Kishon