linux-kernel - Re: [PATCH v2 1/3] dt-bindings: m_can: Add Documentation for transceiver regulator

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Date:   Mon, 2 Mar 2020 13:46:42 +0530
From:   Faiz Abbas <faiz_abbas@...com>
To:     Marc Kleine-Budde <mkl@...gutronix.de>,
        Rob Herring <robh@...nel.org>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <netdev@...r.kernel.org>, <linux-can@...r.kernel.org>,
        <broonie@...nel.org>, <lgirdwood@...il.com>,
        <catalin.marinas@....com>, <mark.rutland@....com>,
        <wg@...ndegger.com>, <sriram.dash@...sung.com>, <dmurphy@...com>
Subject: Re: [PATCH v2 1/3] dt-bindings: m_can: Add Documentation for
 transceiver regulator

Marc,

On 26/02/20 2:40 pm, Faiz Abbas wrote:
> Hi Marc,
> 
> On 21/02/20 2:01 pm, Marc Kleine-Budde wrote:
>> On 2/21/20 9:31 AM, Faiz Abbas wrote:
>>> Hi Rob,
>>>
>>> On 20/02/20 2:05 am, Rob Herring wrote:
>>>> On Mon, Feb 17, 2020 at 07:58:34PM +0530, Faiz Abbas wrote:
>>>>> Some CAN transceivers have a standby line that needs to be asserted
>>>>> before they can be used. Model this GPIO lines as an optional
>>>>> fixed-regulator node. Document bindings for the same.
>>>>>
>>>>> Signed-off-by: Faiz Abbas <faiz_abbas@...com>
>>>>> ---
>>>>>  Documentation/devicetree/bindings/net/can/m_can.txt | 3 +++
>>>>>  1 file changed, 3 insertions(+)
>>>>
>>>> This has moved to DT schema in my tree, so please adjust it and resend.
>>>
>>> Ok.
>>>>
>>>>> diff --git a/Documentation/devicetree/bindings/net/can/m_can.txt b/Documentation/devicetree/bindings/net/can/m_can.txt
>>>>> index ed614383af9c..f17e2a5207dc 100644
>>>>> --- a/Documentation/devicetree/bindings/net/can/m_can.txt
>>>>> +++ b/Documentation/devicetree/bindings/net/can/m_can.txt
>>>>> @@ -48,6 +48,9 @@ Optional Subnode:
>>>>>  			  that can be used for CAN/CAN-FD modes. See
>>>>>  			  Documentation/devicetree/bindings/net/can/can-transceiver.txt
>>>>>  			  for details.
>>>>> +
>>>>> +- xceiver-supply: Regulator that powers the CAN transceiver.
>>>>
>>>> The supply for a transceiver should go in the transceiver node.
>>>>
>>>
>>> Marc, while I have you here, do you agree with this?
>>
>> I'll look into the details later today.
>>
> 
> Sure. Be sure to take another look at my attempt to use the transceiver
> with a phy driver some time ago.
> 
> https://lore.kernel.org/patchwork/patch/1006238/
> 

Do you have any comments?

Thanks,
Faiz