linux-kernel - Re: [PATCH v3 7/9] dt-bindings: ata: ahci-platform: document port-supply

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Message-ID: <99FC6EC0-941D-4757-9C7F-57BE2BDBEF91@aosc.io>
Date:   Tue, 17 Jul 2018 00:02:42 +0800
From:   Icenowy Zheng <icenowy@...c.io>
To:     linux-arm-kernel@...ts.infradead.org,
        Rob Herring <robh@...nel.org>,
        Corentin Labbe <clabbe@...libre.com>
CC:     mark.rutland@....com, devicetree@...r.kernel.org,
        linux-ide@...r.kernel.org, linux-sunxi@...glegroups.com,
        linux@...linux.org.uk, linux-kernel@...r.kernel.org,
        hdegoede@...hat.com, wens@...e.org, thierry.reding@...il.com,
        tj@...nel.org, maxime.ripard@...e-electrons.com
Subject: Re: [PATCH v3 7/9] dt-bindings: ata: ahci-platform: document port-supply

于 2018年7月16日 GMT+08:00 下午11:59:38, Rob Herring <robh@...nel.org> 写到:
>On Fri, Jul 13, 2018 at 11:03:04AM +0000, Corentin Labbe wrote:
>> This patch document the new optional port-supply
>> 
>> Signed-off-by: Corentin Labbe <clabbe@...libre.com>
>> ---
>>  Documentation/devicetree/bindings/ata/ahci-platform.txt | 2 ++
>>  1 file changed, 2 insertions(+)
>> 
>> diff --git a/Documentation/devicetree/bindings/ata/ahci-platform.txt
>b/Documentation/devicetree/bindings/ata/ahci-platform.txt
>> index 47652521a6ed..40a636b9851e 100644
>> --- a/Documentation/devicetree/bindings/ata/ahci-platform.txt
>> +++ b/Documentation/devicetree/bindings/ata/ahci-platform.txt
>> @@ -31,6 +31,7 @@ Optional properties:
>>  - dma-coherent      : Present if dma operations are coherent
>>  - clocks            : a list of phandle + clock specifier pairs
>>  - target-supply     : regulator for SATA target power
>> +- port-supply       : regulator for SATA port
>
>Humm, I'm pretty sure that's what target-supply was supposed to be. If 
>anything, need to clearly define what is what.
>
>How does this work with multiple ports?

He wrongly named it. It's for PHY.

>
>>  - phys              : reference to the SATA PHY node
>>  - phy-names         : must be "sata-phy"
>>  - ahci-supply       : regulator for AHCI controller
>
>Also, please group all the supplies together.
>
>> @@ -51,6 +52,7 @@ Sub-nodes required properties:
>>  And at least one of the following properties:
>>  - phys		    : reference to the SATA PHY node
>>  - target-supply     : regulator for SATA target power
>> +- port-supply       : regulator for SATA port
>>  
>>  Examples:
>>          sata@...08000 {
>> -- 
>> 2.16.4
>> 
>
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