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

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Message-ID: <1ed82ab5-6171-108d-9b92-a18389044174@ti.com>
Date:   Thu, 26 Nov 2020 18:23:10 +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 20/11/20 10:39 am, Kishon Vijay Abraham I wrote:
> 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

Can you clarify this please?

Thank You,
Kishon